Journal articles on the topic 'Waste management, reduction, reuse and recycling'
To see the other types of publications on this topic, follow the link: Waste management, reduction, reuse and recycling.
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 50 journal articles for your research on the topic 'Waste management, reduction, reuse and recycling.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.
1
Abeliotis, Konstadinos, and Katia Lasaridi. "Food Waste Prevention: Reduction, Reuse, and Recycling." Resources 12, no. 1 (December 30, 2022): 3. http://dx.doi.org/10.3390/resources12010003.
Full text
2
Bunditsakulchai, Pongsun, and Chen Liu. "Integrated Strategies for Household Food Waste Reduction in Bangkok." Sustainability 13, no. 14 (July 8, 2021): 7651. http://dx.doi.org/10.3390/su13147651.
Full textAbstract:
Urban food waste issues in developing economies have recently attracted the attention of policymakers, practitioners, and academics in the course of implementing the Paris Agreement and the SDGs. In our case study city of Bangkok, Thailand, household food waste generation doubled from 2003 to 2018, with a similar increase in per capita amounts. Using an extensive literature review, statistical models, and a questionnaire survey, the authors clarified factors influencing food waste generation and separation before disposal, and reuse/recycling activity in urban households. Results showed that pre-purchase checks can not only prevent food waste but can also increase the reuse/recycling of food waste. Citizens with higher levels of education and those showing more concern about social issues and global warming are more likely to separate food waste before disposal and to participate in reuse/recycling activities. Finally, this paper proposes a seven-stage action-based model of integrated strategies for improving household food and food waste management to prevent/reduce food waste generation as well as remedy existing policy gaps in Bangkok.
3
Dawood, Lamyaa Mohammed, and Zuher Hassan Abdullah. "Employing 3R Techniques in Managing Cement Industry Waste." Journal of University of Babylon for Engineering Sciences 26, no. 2 (January 1, 2018): 8–19. http://dx.doi.org/10.29196/jub.v26i2.375.
Full textAbstract:
Waste management conserves human health, ownership, environment, and keeps valuable natural resources. Lean-green waste of an organization’s operations can be decreased through implementation 3R (Reduce, Reuse, and Recycling) techniques by reduction of manufacturing system wastes. This research aims to integrate lean-green waste of the manufacturing system throughout employing 3R techniques and weighted properties method in order to manage waste. Al-Kufa cement plant is employed as a case study. Results are generated using Edraw Max Version 7 and Excel. Overall results show reduce technique of lean-green waste management has major contribution of 55 % and recycling technique has minor contribution 18 %. Defects waste has major integration of lean-green waste, while air emissions waste has minor integration of lean-green waste.
4
Mohammed, Musa, Nasir Shafiq, Ali Elmansoury, Al-Baraa Abdulrahman Al-Mekhlafi, Ehab Farouk Rached, Noor Amila Zawawi, Abdulrahman Haruna, Aminu Darda’u Rafindadi, and Muhammad Bello Ibrahim. "Modeling of 3R (Reduce, Reuse and Recycle) for Sustainable Construction Waste Reduction: A Partial Least Squares Structural Equation Modeling (PLS-SEM)." Sustainability 13, no. 19 (September 25, 2021): 10660. http://dx.doi.org/10.3390/su131910660.
Full textAbstract:
There is a lack of awareness and knowledge among the Malaysian construction industry about waste management reduction. Numerous nations worldwide have understood and have incorporated the concept of the 3R (reduce, reuse, and recycle) in waste management, and it has worked out well. This study investigated construction waste issues and developed a model for sustainable reduction by applying 3R using a partial least squares structural equation modeling PLS-SEM in Malaysia. The research methodology adopted the quantitative and qualitative approaches by sending a survey questionnaire to the relevant stakeholders to obtain their views or perceptions and interviewing an expert in the related field about waste reduction in the Malaysian construction industry. Three hundred thirty questionnaires were collected within six months of submission. The significant factors are determined using mean ranking for the reduce, reuse and recycle elements. Based on the results, the exploratory power of the study model is considered sustainable with R2 values of 0.83%. At the same time, the results of relationships between improving factors, policy-related factors, construction waste generated, and sustainable construction waste reduction were significant. Also, the findings revealed that the top factors for waste generation on reducing, reusing, and recycling are lack of design and documentation, and lack of guidance for effective construction waste-collecting. The paper will explore different and dynamic practices, such as recycling, reuse of construction waste management cost reduction, enabling stakeholders and managers to estimate and quantify the actual size of CWM costs and benefits for sustainable development goals.
5
Idris, Idris, Dewi Zaini Putri, Zul Azhar, Joan Martha, and Isra Yeni. "Willingness to participate analysis of urban waste management in West Sumatra, Indonesia." Jurnal Perspektif Pembiayaan dan Pembangunan Daerah 9, no. 2 (June 30, 2021): 115–26. http://dx.doi.org/10.22437/ppd.v9i2.12119.
Full textAbstract:
Waste management shares the same purposes with the Sustainable Development Goals (SDGs) target in 2030. This program encourages all countries to substantially reduce waste through prevention, reduction, recycling, and reuse its waste so that the sustainability of development can be achieved. The success rate of sustainable waste management is largely determined by the participation and behavior of people, households, and citizens in managing their waste. This study analyzes socio-economic factors and the role of social capital in affecting households' willingness to participate in waste management in West Sumatra’s urban areas. This study used National Socio-Economic Survey data in the Social Resilience module. The sample in this study is 1011 households spread across the urban areas of West Sumatra. Using logistic regression, this study found that per capita household expenditure, homeownership status, knowledge, and household involvement in mutual cooperation activities to clean up their environment significantly affect the probability of households participating in urban waste management. The relevant policy, such as implementing the 3R concept, namely reduce, reuse, and recycling is needed for the Sustainable Development Goals to be achieved.
6
Artha, I. Putu Sudana Satria, Nyoman Utari Vipriyanti, and I. Putu Sujana. "Community Based 3R Waste Management Strategy (Reduce, Reuse, Recycle) Bantas Village, Selemadeg Timur District, Tabanan Regency." International Journal of Contemporary Research and Review 9, no. 09 (September 10, 2018): 21041–49. http://dx.doi.org/10.15520/ijcrr/2018/9/09/593.
Full textAbstract:
Garbage can be interpreted as a consequence of the activities of human life. It is undeniable, garbage will always be there as long as life activities continue to run. Every year, it can be ascertained that the volume of waste will always increase along with the increasing pattern of public consumerism. The landfill which is increasingly polluting the environment requires a technique and management to manage waste into something useful and of economic value, Bantas Village, Selemadeg Timur District, Tabanan Regency currently has a Waste Management Site (TPS3R) managed by Non-Governmental Organizations (KSM ) The source of waste comes from Households, Stalls, Restaurant Entrepreneurs, Schools, Offices and Ceremonies which are organic and inorganic waste. The waste management system at Bantas Lestari TPS with 3R system is Reduce (reduction of waste products starts from the source), Reuse (reuse for waste that can be reused) and Recycle (recycling waste) to date it is still running but not optimal. The method used in this research is descriptive quantitative with data analysis using SWOT analysis. This study produces a Waste Management Strategy which is the result of research from the management aspect, aspects of human resources and aspects of infrastructure facilities.
7
Abila, Beatrice, and Jussi Kantola. "The Perceived Role of Financial Incentives in Promoting Waste Recycling—Empirical Evidence from Finland." Recycling 4, no. 1 (January 10, 2019): 4. http://dx.doi.org/10.3390/recycling4010004.
Full textAbstract:
Placing emphasis on promoting the reduction, reuse, recycling, recovery and repair of waste has been a critical aspect of the sustainable waste management agenda. Considering recycling, an environmentally friendly and sustainable waste management option, monetary rewards are in place for certain recyclable municipal waste materials in Finland. The study investigates consumers’ perception about the role of financial incentives in effecting the recycling of municipal solid waste materials in Finland. The study also considers drivers for recycling municipal solid waste on the basis of behavioural change factors, such as environmental risk, behavioural economics, resource value, economic benefit, convenience, knowledge, legislation and belief. It further determines the association between income-earning consumers and non-income-earning consumers in their perception of financial incentives for recycling. The empirical results from the study confirm that the role of financial incentive is important in accelerating the recycling of municipal solid waste. A weak-to-positive relationship exists between drivers for recycling municipal solid waste and recycling behaviour. There exists no statistically significant difference in the means of the perceived role of financial incentives for recycling in the two groups. The introduction of financial incentives for other recyclable wastes is required in order to boost consumers’ participation in the recycling of municipal solid waste. The need to pay more attention to intrinsic and extrinsic factors, as they affect the participation members of the society in the recycling of municipal solid waste, is paramount. This has become necessary in ensuring sustainable waste management in Finland.
8
Tsai, Wen-Tien. "Analysis of plastic waste reduction and recycling in Taiwan." Waste Management & Research: The Journal for a Sustainable Circular Economy 39, no. 5 (March 21, 2021): 713–19. http://dx.doi.org/10.1177/0734242x21996821.
Full textAbstract:
With the mass production and consumption of single-use plastics and other plastic products, plastic waste management and its resulting microplastic pollution have become the most noteworthy environmental issues. The main objectives of this paper were to review the regulatory measures for plastic waste reduction and recycling, analyse the trend changes on the recycled amounts of regulated plastic containers and also address the discussions on the impacts of COVID-19 on the expected increase in plastic waste. In the past two decades, the central competent authority (i.e. Environmental Protection Administration (EPA)) in Taiwan has promulgated some regulations governing plastic waste reduction and recycling, especially plastic containers. Based on the official statistics, it showed that total certified amounts of regulated plastic containers have increased from 45,552 tonnes in 1998 to 194,133 tonnes in 2019. This shift was in line with circular economy policies by the Zero Waste Program and Resource Recycling and Reuse Plan launched by the Taiwan EPA during this period. On the other hand, the COVID-19 pandemic will impact on the regulatory policies for plastic waste management because the excess use of regulated plastic products will be temporarily permitted due to the epidemic prevention and control measures. Although the increased proportion of plastic waste in municipal solid waste (MSW) will be beneficial for the energy efficiencies of waste-to-power systems in MSW incineration plants, the recycling and reduction rates of regulated plastic containers or products could decline during the COVID-19 breakout.
9
Carpus, Eftalea, Angela Dorogan, and Cristina Stroe. "Textile packaging waste in the context of implementing the concept of circular economy." Industria Textila 71, no. 05 (October 30, 2020): 499–503. http://dx.doi.org/10.35530/it.071.05.1836.
Full textAbstract:
At European level, there are concrete measures regarding waste management in the circular economy, and these refer to: mandatory recycling rates for different categories of waste: plastics, glass, metals, paper and cardboard as well as biodegradable waste; the obligation to redesign the products in order to increase the proportion of raw materials resulting from recycling and to increase the degree of recycling of products, in order to consider them as secondary raw materials; promoting and stimulating the reuse of products; increasing the recycling rate of municipal waste by 2030 to a minimum of 65%; increasing the recycling rate of packaging waste by 2030 to a minimum of 75%; reduction of food wastage and implicitly of the resulted food waste by 50% by 2030. The large amount of packaging waste determined the taking of legislative measures that defined the obligations of pack- aging producers/distributors, recycling objectives and the waste management hierarchy. New targets for the recycling of packaging waste predict a growth to 65% in 2025 and 70% in 2030 [1]. Textile packaging waste is an important link in the integrated management of waste whose recovery contributes to the conservation and improvement of natural capital.
10
Et al., Chainarong Khaw-ngern. "Zero Waste Management through Mindful Consumption for Sustainable Waste Solution." Psychology and Education Journal 58, no. 1 (January 29, 2021): 1387–92. http://dx.doi.org/10.17762/pae.v58i1.918.
Full textAbstract:
Due to the population growth, economic expansion, and urbanization, waste becomes a critical problem of societies. Zero waste policies are a great and important way in which local businesses take an interest to preserve our environment. Going zero-waste, however, is a hard and intense process because there are many challenges and hindrances along the path. This article provides an overview of the guiding principles to solid waste management and to look at zero waste management in Japan, Singapore, and Thailand. It also suggests mindful consumption as tool for zero waste management towards sustainability. Documentary study and literature review were used for data collection. The result shows that zero waste management needs to be developed step-by-step and it needs involvement of all stakeholders. It can bring economic and environmental benefits to the countries, but it leads to more financial cost of implementation and operation. Mindful consumption, based on Buddhism principle of right mindfulness, is considered a helpful and practical way for everyone to help their communities reduce waste through moderate consumption. With mindfulness, individuals care not only for their own wellbeing, but for others, communities, and environment. They will participate in source separation, reuse, and recycling programs as they realize that conserving environment and reducing the use of natural resource over the life cycle of the service and products can lead their lives more sustainable. The right understanding in the cause and effect of waste can lead people to engage in waste reduction, reuse, and recycling and move towards sustainable waste solution.
11
Khare, Pratima. "Waste Management- It’s not waste until you waste it!!!" Journal of Non-Timber Forest Products 21, no. 1 (March 1, 2014): 5–8. http://dx.doi.org/10.54207/bsmps2000-2014-o7yop7.
Full textAbstract:
Waste management is a new concept for most of the Asian countries including India. The lack of financial and technical resources and regulatory control for the management of hazardous waste in the past has led to the unscientific disposal of hazardous waste in India. Now a days urbanization not only concentrates waste but also raises generation rates. New and expensive technologies are being pushed to deal with our urban waste problem ignoring their environmental and social implications. Hazardous waste can be classified into solid, liquid, gases and sludge waste. There are various methods of disposal of waste management. Disposing the waste in a landfill involves burying the waste. In incineration the solid organic wastes are subjected to combustion so as to convert them into residue and gaseous products. In recycling, the collection and reuse of waste materials are done such as empty beverage containers. Biological reprocessing in which waste materials that are organic in nature such as plant material, food scraps can be recycled using biological compositing and digestion process to decompose the organic matter. Energy recovery as well as avoidance and reduction methods are also the other ways of disposal.
12
Tangwanichagapong, Siwaporn, Vilas Nitivattananon, Brahmanand Mohanty, and Chettiyappan Visvanathan. "Greening of a campus through waste management initiatives." International Journal of Sustainability in Higher Education 18, no. 2 (February 6, 2017): 203–17. http://dx.doi.org/10.1108/ijshe-10-2015-0175.
Full textAbstract:
Purpose This paper aims to describe the effects of 3R (reduce, reuse and recycle) waste management initiatives on a campus community. It ascertains the environmental attitudes and opinions of the residents and investigates their behavioral responses to waste management initiatives. Practical implications for enhancing sustainable waste management are discussed in this paper. Design/methodology/approach Demonstration projects on waste segregation and recycling, as well as waste a reduction campaign, were set up on the campus to ascertain people’s attitudes and investigate their behavioral responses toward 3R practices. Data were collected through a questionnaire survey, observations, interviews and the project’s document review. A waste audit and waste composition analysis was carried out to assess waste flows and actual waste management behaviors and measure the change in the recycling rate. Findings 3R waste management initiatives had positive effects on people’s attitudes about resources, waste management and consciousness of the need to avoid waste, but these initiatives did not affect recycling and waste management behavior. A voluntary approach-only cannot bring about behavioral change. Incentive measures showed a greater positive effect on waste reduction to landfills. Nevertheless, the demonstration projects helped to increase the overall campus recycling from 10 to 12 per cent. Originality/value This paper addresses a literature gap about the 3R attitudes and resulting behavior as part of campus sustainability of higher education institutions in a developing country. The authors’ results revealed hurdles to be overcome and presents results that can be compared to behavioral responses of people from other developed countries. These findings can be used as a guide for higher education institution’s policy-makers, as they indicate that voluntary instruments alone will not yield effective results, and other mechanisms that have an impact on people's behavior are required.
13
Gordon, Roberta G. "Legal Incentives for Reduction, Reuse, and Recycling: A New Approach to Hazardous Waste Management." Yale Law Journal 95, no. 4 (March 1986): 810. http://dx.doi.org/10.2307/796454.
Full text
14
Giwa, Adewale, Farah Abuhantash, Bushra Chalermthai, and Hanifa Taher. "Bio-Based Circular Economy and Polygeneration in Microalgal Production from Food Wastes: A Concise Review." Sustainability 14, no. 17 (August 29, 2022): 10759. http://dx.doi.org/10.3390/su141710759.
Full textAbstract:
The production of biofuels from microalgae has gained considerable attention due to the rapid diminution of fossil fuels. Despite major advantages, microalgal biofuels deployment still faces obstacles associated with the cost of biomass production and waste disposal. The production could become more cost-effective and feasible if the wastes in the production processes are recycled/reused and the biofuels produced are co-produced with high-value co-products. The aim of this review is to discuss and analyze the importance of recycling/reusing wastes and co-producing high-value products to be implemented with biofuels from microalgal-based processes. Recent advances in circular economy/integration and polygeneration, as proper strategies, are discussed. Circular economy and integration entail the reuse of food wastes, waste biomass, and wastewater in microalgal conversion processes for producing biofuels. The main focus of the section of this review on circular economy is food waste reuse for microalgal production. Polygeneration is the production of multiple products, including a biofuel as the main product and multiple co-products to ensure process cost reduction. The results reported in relevant studies have shown that microalgal growth and metabolite accumulation could be favored by mixotrophic cultivation using wastes from the conversion processes or reused food wastes. The co-production of high-value products, including pharmaceuticals, proteins, carbohydrates, pigments, bioplastics, pellets, and biofertilizers may also favor the sustainability of biofuel production from microalgae.
15
FISCHER, THOMAS B., KAREN POTTER, STUART DONALDSON, and TONY SCOTT. "MUNICIPAL WASTE MANAGEMENT STRATEGIES, STRATEGIC ENVIRONMENTAL ASSESSMENT AND THE CONSIDERATION OF CLIMATE CHANGE IN ENGLAND." Journal of Environmental Assessment Policy and Management 13, no. 04 (December 2011): 541–65. http://dx.doi.org/10.1142/s1464333211004000.
Full textAbstract:
Municipal waste management strategies (MWMSs) are local level policy instruments, prepared in an area wide manner all over England, aiming to achieve more sustainable waste management practices. Their focus is on different aspects of the waste management hierarchy, including waste reduction, reuse, recycling/composting and residual waste management. In this paper, a systematic review of MWMS strategic environmental assessments (SEAs), completed by February 2010 is provided. SEA report quality and the extent to which climate change mitigation is considered are evaluated. Whilst there are strengths of current practice, there is also scope for improvement, particularly regarding a more effective consideration of the waste management hierarchy. Furthermore, whilst climate change mitigation is routinely considered as an overall objective, none of the SEAs set related targets, for example regarding carbon emission reduction.
16
Angelis-Dimakis, Athanasios, George Arampatzis, Andreas Alexopoulos, Andreas Pantazopoulos, Ioannis Vyrides, Nikolaos Chourdakis, and Vasilis Angelis. "Waste Management and the Circular Economy in Cyprus—The Case of the SWAN Project." Environments 9, no. 2 (January 23, 2022): 16. http://dx.doi.org/10.3390/environments9020016.
Full textAbstract:
The increase in waste volume and greenhouse gas emissions and decrease in raw-material reserves are some of the serious problems that our planet is facing. The measures needed to address these issues cannot be implemented under the prevailing linear economy model; hence, the circular economy model has been introduced. The successful implementation of circularity, whose basic principles include waste reduction, reuse, and recycling, requires a change in the behaviour of all the parties involved and is expected to lead to industrial–urban symbiosis schemes. The present paper looks at the current state and future prospects of the circular economy in Cyprus, based on the evidence drawn from an EU-funded project entitled “a digital Solid Waste reuse plAtform for BalkaN” (Project Acronym: SWAN). The project’s main objective was the design and development of a digital solid waste reuse platform involving four countries: Greece, Albania, Bulgaria, and Cyprus. Using the data collected, in the context of this project, from a sample of Cypriot industries, we looked into the familiarisation of the respondents with the basic concepts of circularity and their willingness to participate in symbiotic value chains. Moreover, we examined the composition of the waste streams produced by those industries and proposed potential waste reuse business models and subsequent symbiotic clusters.
17
Amaral, Rosaria E. C., Joel Brito, Matt Buckman, Elicia Drake, Esther Ilatova, Paige Rice, Carlos Sabbagh, Sergei Voronkin, and Yewande S. Abraham. "Waste Management and Operational Energy for Sustainable Buildings: A Review." Sustainability 12, no. 13 (July 1, 2020): 5337. http://dx.doi.org/10.3390/su12135337.
Full textAbstract:
Construction and demolition waste account for a significant part of the solid waste taking up landfills on a global scale. A considerable portion of the waste generated by the construction industry has substantial residual value, and therefore waste management and sustainability principles and techniques should be applied. Buildings consume a lot of energy during the operations phase, but decisions made during design and construction impact building operations. This study reviews sustainable building practices to explore strategies that ensure minimal effects on economy, society, and the environment through efficient resource and waste management at different phases of a building life cycle. These practices include pollution reduction, reuse and recycling, energy consumption, embodied carbon, and water resource management.
18
Lee, Roh Pin, Bernd Meyer, Qiuliang Huang, and Raoul Voss. "Sustainable waste management for zero waste cities in China: potential, challenges and opportunities." Clean Energy 4, no. 3 (September 2020): 169–201. http://dx.doi.org/10.1093/ce/zkaa013.
Full textAbstract:
Abstract Waste is a valuable secondary carbon resource. In the linear economy, it is predominantly landfilled or incinerated. These disposal routes not only lead to diverse climate, environmental and societal problems; they also represent a loss of carbon resources. In a circular carbon economy, waste is used as a secondary carbon feedstock to replace fossil resources for production. This contributes to environmental protection and resource conservation. It furthermore increases a nation’s independence from imported fossil energy sources. China is at the start of its transition from a linear to circular carbon economy. It can thus draw on waste management experiences of other economies and assess the opportunities for transference to support its development of ‘zero waste cities’. This paper has three main focuses. First is an assessment of drivers for China’s zero waste cities initiative and the approaches that have been implemented to combat its growing waste crisis. Second is a sharing of Germany’s experience—a forerunner in the implementation of the waste hierarchy (reduce–reuse–recycle–recover–landfill) with extensive experience in circular carbon technologies—in sustainable waste management. Last is an identification of transference opportunities for China’s zero waste cities. Specific transference opportunities identified range from measures to promote waste prevention, waste separation and waste reduction, generating additional value via mechanical recycling, implementing chemical recycling as a recycling option before energy recovery to extending energy recovery opportunities.
19
Harding, Charlotte, Joren Van Loon, Ingrid Moons, Gunter De Win, and Els Du Bois. "Design Opportunities to Reduce Waste in Operating Rooms." Sustainability 13, no. 4 (February 18, 2021): 2207. http://dx.doi.org/10.3390/su13042207.
Full textAbstract:
While taking care of the population’s health, hospitals generate mountains of waste, which in turn causes a hazard to the environment of the population. The operating room is responsible for a disproportionately big amount of hospital waste. This research aims to investigate waste creation in the operating room in order to identify design opportunities to support waste reduction according to the circular economy. Eight observations and five expert interviews were conducted in a large sized hospital. The hospital’s waste infrastructure, management, and sterilization department were mapped out. Findings are that washable towels and operation instruments are reused; paper, cardboard, and specific fabric are being recycled; and (non-)hazardous medical waste is being incinerated. Observation results and literature findings are largely comparable, stating that covering sheets of the operation bed, sterile clothing, sterile packaging, and department-specific products are as well the most used and discarded. The research also identified two waste hotspots: the logistical packaging (tertiary, secondary, and primary) of products and incorrect sorting between hazardous and non-hazardous medical waste. Design opportunities include optimization of recycling and increased use of reusables. Reuse is the preferred method, more specifically by exploring the possibilities of reuse of textiles, consumables, and packaging.
20
Flizikowski, Józef, Weronika Kruszelnicka, and Marek Macko. "The Development of Efficient Contaminated Polymer Materials Shredding in Recycling Processes." Polymers 13, no. 5 (February 26, 2021): 713. http://dx.doi.org/10.3390/polym13050713.
Full textAbstract:
Recently, a dynamic increase in the number of polymer elements ending their life cycle has been observed. There are three main ways of dealing with polymer waste: reuse in an unchanged form, recycling (both material and energy), and disposal (mainly in the form of landfilling or incineration). The legislation of European countries promotes in particular two forms of waste management: reuse and recycling. Recycling processes are used to recover materials and energy especially from contaminated waste, which are structurally changed by other materials, friction, temperature, machine, process, etc. The recycling of polymers, especially of multi-plastic structural elements, requires the use of special technological installations and a series of preparatory operations, including crushing and separating. Due to the universality and necessity of materials processing in recycling engineering, in particular size reduction, the aim of this study is to organize and systematize knowledge about shredding in the recycling process of end-of-life polymeric materials. This could help properly design these processes in the context of sustainable development and circular economy. Firstly, an overview of the possibilities of end-of-life plastics management was made, and the meaning of shredding in the end-of-life pathways was described. Then, the development of comminution in recycling processes was presented, with special emphasis given to quasi-cutting as the dominant mode of comminution of polymeric materials. The phenomenon of quasi-cutting, as well as factors related to the material, the operation of the shredding machine, and the technological process affecting it were described. Research conducted on quasi-cutting as a phenomenon when cutting single material samples and quasi-cutting as a machine process was characterized. Then, issues regarding recycling potentials in the context of shredding were systematized. Considerations included the areas of material, technical, energy, human, and control potentials. Presented bases and models can be used to support the innovation of creative activities, i.e., environmentally friendly actions, that produce specific positive environmental results in the mechanical processing of recycled and reused materials. The literature survey indicates the need to explore the environmental aspect of the shredding process in recycling and connect the shredding process variables with environmental consequences. This will help to design and control the processes to get the lowest possible environmental burdens.
21
Polzer, Veronica R., and Kenneth M. Persson. "MSW Management in São Paulo City and the National Policy of Solid Waste." Open Waste Management Journal 9, no. 1 (September 30, 2016): 1–10. http://dx.doi.org/10.2174/1876400201609010001.
Full textAbstract:
The objective of this paper is to present a brief overview of the current situation of solid waste in Brazil, as well as the importance of the National Policy of Solid Waste as the main regulatory milestone of the country, clarifying the role of society, government and the private sector. Moreover, this law is essential for determining the closing of dumps, encouraging municipal consortia and establishing a hierarchy for solid waste management through waste reduction at source, reuse, recycling, energy recovery and disposal. Also, it aims to understand how São Paulo, the most important city of Brazil, is currently facing the problem and what are the scenarios and proposals indicated in the Integrated Management Solid Waste Plan of the city to get the sustainable solid waste management of São Paulo in operation.
22
Marinho, António Joaquim Coelho, João Couto, and Aires Camões. "CURRENT STATE, COMPREHENSIVE ANALYSIS AND PROPOSALS ON THE PRACTICE OF CONSTRUCTION AND DEMOLITION WASTE REUSE AND RECYCLING IN PORTUGAL." JOURNAL OF CIVIL ENGINEERING AND MANAGEMENT 28, no. 3 (March 3, 2022): 232–46. http://dx.doi.org/10.3846/jcem.2022.16447.
Full textAbstract:
The traditional method of construction and demolition waste (CDW) consumes a substantial amount of land resources causing severe environmental and social problems. In Portugal, the low recycling rate, combined with a high use of landfill as a way of managing CDW, has resulted in a negative index of 39% in the waste hierarchy, thus making it impossible for Portugal to be classified as a country that implements waste hierarchy in practice. The main goal of this study is to investigate the benefits of CDW reuse and recycling and the factors that promote or hinder this practice in Portugal. Therefore, a comprehensive approach has been adopted by combining the analysis of secondary data collected through extensive bibliography research with the results of a survey by questionnaire conducted on a group of experts in CDW management. It was concluded that the main method of CDW management consists of its disposal in licensed landfills (47%), and the rate of CDW reuse on site is still low (6%). The results show a high consistency between the respondents’ answers, as well as consistency between the opinions of these participants from different areas of professional activity. The respondents do recognize a concern regarding the reduction of carbon emissions, as well as a cultural resistance to materials or buildings that use CDW. These problems are further compounded by the difficulty in installing or supporting recycling equipment for CDW reuse on site. Respondents agree that there should be more investment and support from the government in this area, as well as in the training of construction companies.
23
Sarbassov, Sagalova, Tursunov, Venetis, Xenarios, and Inglezakis. "Survey on Household Solid Waste Sorting at Source in Developing Economies: A Case Study of Nur-Sultan City in Kazakhstan." Sustainability 11, no. 22 (November 18, 2019): 6496. http://dx.doi.org/10.3390/su11226496.
Full textAbstract:
The exponential population growth in urban areas makes existing solid waste management policies and strategies challenging. The situation becomes more strenuous in fast-growing cities where increasing waste production can hardly be met by the capacity of existing facilities. Practices like waste prevention, recycling, reuse, and recovery are fundamental elements needed for the reduction of solid waste disposed in landfills, especially in fast-growing cities where more sustainable management practices need to be adopted. This study investigated the behavioral attitudes of citizens of the capital of Kazakhstan, Nur-Sultan (former Astana), towards household solid waste disposal and separation at the source. The survey was conducted through stratified random sampling during April and July of 2018 with the participation of 3281 respondents. It is the first attempt, to our knowledge, of assessing recycling trends in Kazakhstan from the household perspective. The results showed that 24% of respondents were already sorting household solid waste despite the absence of a separation system at the source. The study further demonstrated that separation at source could be effective if the local authorities were to introduce sound public awareness campaigns and install recycling bins in close proximity to residential buildings.
24
Alqahtani, F. K., Y. K. Alswailem, A. M. Alshabragi, and M. A. Sherif. "Smart Planning of Waste Management System in Saudi Arabia; Challenges and Opportunities." IOP Conference Series: Earth and Environmental Science 1026, no. 1 (May 1, 2022): 012035. http://dx.doi.org/10.1088/1755-1315/1026/1/012035.
Full textAbstract:
Abstract Solid waste management is one of the most critical problems facing urban areas worldwide. It is quickly becoming a significant issue in emerging countries with high population growth. Waste collection is a time-consuming procedure requiring enormous sums of money and meticulous logistics management. The amount of household waste produced in Riyadh has fluctuated over the years, with the majority being dumped in landfills instead of using them. This inefficient method of waste disposal has several adverse financial and environmental consequences, as landfills take up a large area of the city and emit foul odors and infections. An innovative waste management system should be adopted to address these difficulties, beginning with waste reduction and trash disposal in modern engineered landfills. Waste management solutions include reducing, reusing, recycling, energy recovery, and disposal. This research will focus on recycling, recovery, and disposal since social awareness campaigns could implement the first two strategies to reduce and reuse waste. The analysis also gives a sufficient cost analysis for the proposed methodology. This study opens new avenues for incorporating the value recovery aspect into garbage collection planning and the use of new data capture technologies that allow municipalities to track the mix of recyclables contained in various trash systems.
25
Nascimento, Elizabeth de Souza, and Alfredo Tenuta Filho. "Chemical waste risk reduction and environmental impact generated by laboratory activities in research and teaching institutions." Brazilian Journal of Pharmaceutical Sciences 46, no. 2 (June 2010): 187–98. http://dx.doi.org/10.1590/s1984-82502010000200004.
Full textAbstract:
The environmental impact caused by teaching and research with regard to chemical waste is of increasing concern, and attempts to solve the issue are being made. Education and research-related institutions, in most laboratory and non-laboratory activities, contribute to the generation of small quantities of waste, many of them highly toxic. Of this waste, some is listed by government agencies who are concerned about environmental pollution: disposal of acids, metals, solvents, chemicals and toxicity of selected products of synthesis, whose toxicity is often unknown. This article presents an assessment of the problem and identifies possible solutions, indicating pertinent laws, directives and guidelines; examples of institutions that have implemented protocols in order to minimize the generation of waste; harmonization of procedures for waste management and waste minimization procedures such as reduction, reuse and recycling of chemicals.
26
Ting, Sim Nee, Awgku Mohd Firdaus Nee Bin Awg Sakawi, Hieng Ho Lau, and Andrew Whyte. "Minimisation of Construction Waste Using the Principles of Waste Management." ASM Science Journal 17 (December 22, 2022): 1–9. http://dx.doi.org/10.32802/asmscj.2022.1352.
Full textAbstract:
Construction waste especially material waste is one major concern for the construction projects and has important implications in terms of socioeconomic and environmental aspects for the country. Construction industry being largest consumer of raw materials derived from natural resources also produces high amount of material waste that negatively impacts the environment. The building industry alone in Malaysia has reportedly generated approximately 25,600 tonnes of construction and demolition wastes daily due to rapid development. Therefore, any means of reducing material waste will not only result in significant cost savings within the projects but also reducing the pressure on the landfills and ease environmental concerns dealing with such waste conversion and recycling; and reduction. This study examines the causes and prevention of material waste in the construction specifically the building industry through the principles of waste management available. Questionnaires survey is the main tool deployed for data collection. The average and relative index were used to analyse the various aspects of the data collected. Stages of works used for the study include the material handling and storage stage; procurement of material stage; usage and operation of the material stage; and the design and documentation stage. The results indicate that respondents are aware of the concept of waste management but lack of awareness on the availability of such guidelines. It is hopeful that this study can improve on waste management implementation in order to uptake the principle of reduce, recycle and reuse material waste so as to reduce construction costs, provide good savings to the end users and improve the level of productivity of the nation.
27
Akil, Azilah M., and Ho Chin Siong. "HOUSEHOLD PARTICIPATION IN RECYCLING PROGRAMS: A CASE STUDY FROM MALAYSIA." Jurnal Tataloka 17, no. 2 (December 31, 2015): 64. http://dx.doi.org/10.14710/tataloka.17.2.64-75.
Full textAbstract:
<p>The increase in per capita income and rapid urbanization, have contributed significantly to changes in consumption behaviour leading to increased waste generation. Waste disposed to landfill sites is fast becoming unfeasible thus requiring a more effective management of waste material involving waste reduction, reuse and recycling. The success of recycling program, however, is largely dependent on household participation activities which are essentially behaviour driven. The recycling performance of Malaysian households is still low as it stands at 5.5% compared to Singapore and Vietnam which are 56% and 22% respectively. This study examines recycling behaviour among households and the influence of socioeconomic, demographic and behavioural characteristics on households’ participation in recycling program in Malaysia. A sample of 300 randomly selected household were surveyed. The findings revealed that most of the households (70%) claim that they are practicing recycling particularly types of paper and old clothes. The factors of participation in recycling show equal results both for environmental concerns and economic benefits. Those who did not participate in recycling, listed household issues or behaviour, namely lack of time and materials to recycle, inconvenient, lack of space, lack of facilities and information as well as laziness, as barriers. The paper finally highlights the factors which can encourage household to be involved in recycling and give recommendations to the authorities in terms of facilities and infrastructures to facilitate the program.</p>
28
Perrot, Jean-François, and Alison Subiantoro. "Municipal Waste Management Strategy Review and Waste-to-Energy Potentials in New Zealand." Sustainability 10, no. 9 (August 31, 2018): 3114. http://dx.doi.org/10.3390/su10093114.
Full textAbstract:
Municipal waste management and Waste-to-Energy (WtE) potentials in New Zealand are discussed. The existing main waste management strategy of New Zealand is to reduce, reuse and recycle waste. Most of the remaining waste is currently disposed of in landfills. WtE options were explored in this study as a more sustainable waste treatment alternative in the country, while making use of the annual 30.8 petajoule of available waste energy in New Zealand. Four WtE technology options were discussed and compared, namely incineration, anaerobic digestion, gasification and pyrolysis. The aspects in comparison were air pollution, cost, side products, capacity, commercial maturity, energy efficiency and type of waste treated. Special emphasis was given to environment-friendliness and cost. From the comparison, it was found that anaerobic digestion seems to be the most attractive solution for the country as it is environment-friendly, economical and the concept is consistent with New Zealand’s existing waste management strategy. The major limitations of anaerobic digestion are its low energy production efficiency and its limited waste treatment capacity. Hence, an effective national waste reduction and recycling strategy is crucial for the success of this waste management option.
29
Kurniawan, Tonni Agustiono, Xue Liang, Elizabeth O’Callaghan, Huihwang Goh, Mohd Hafiz Dzarfan Othman, Ram Avtar, and Tutuk Djoko Kusworo. "Transformation of Solid Waste Management in China: Moving towards Sustainability through Digitalization-Based Circular Economy." Sustainability 14, no. 4 (February 18, 2022): 2374. http://dx.doi.org/10.3390/su14042374.
Full textAbstract:
In China, environmental pollution due to municipal solid waste (MSW) over-generation is one of the country’s priority concerns. The increasing volume and complexity of the waste poses serious risks to the environment and public health. Currently, the annual growth of MSW generation is estimated to be approximately 8–10% and will increase to 323 million metric tons (Mt) by 2030. Based on the secondary data collected from a literature survey, this article critically evaluates the recent progress of MSW management (MSWM) in China and offers new insights into the waste sector in the era of Industry 4.0. This helps decision makers in China to plan a smooth transition nationwide to a circular economy (CE) in the waste sector. It is evident that digitalization is a driving force for China to move towards low-carbon development strategies within the framework of CE. Through digitalization, the waste sector has promoted prevention, reduction, reuse, and recycling (3Rs) of waste before waste disposal in landfills. A proper implementation of digitalization-based waste recycling has contributed to an efficient cooperation between the government and private sector, increased job opportunities, and promoted the conservation of resources. It is anticipated that this work not only contributes to the establishment of an integrated MSWM system in China, but also improves local MSWM through digitalization in the framework of a CE.
30
Floridia, Giovanni, Salvatore Urso, Giuseppe Maria Belfiore, and Marco Viccaro. "Thermal and Mechanical Improvement of Filling Mixture for Shallow Geothermal Systems by Recycling of Carbon Fiber Waste." Energies 15, no. 16 (August 10, 2022): 5806. http://dx.doi.org/10.3390/en15165806.
Full textAbstract:
The reuse of waste materials such as carbon fiber (CF) as filling additive for closed-loop vertical geothermal probes in shallow geothermal systems has been evaluated as a new grout mixture for the improvement of geothermal energy systems efficiency and a sustainable supply of raw materials from special waste. The study evaluates the improvement in both thermal exchange characteristics and mechanical properties of the filling grout for geothermal purposes through the addition of 5% of CF to standard (ST) materials currently on the market. Uniaxial and flexural tests investigating the material response after 14 and 28 days from sample preparation on samples of both standard and mixed grout material as well as non-stationary hot wire method were used to define the thermal conductivity for both the standard and innovative mixtures. The experimental analysis provides evidence for increasing the thermal conductivity by about 3.5% with respect to standard materials. Even the mechanical properties are better in the innovative mixture, being the compressive strength 187% higher and flexural strength 81% higher than standard materials. The obtained results become useful for the optimization of low enthalpy geothermal systems and mostly for the design of the vertical heat exchange system in terms of depth/number of installed probes. Principally, thermal conductivity improvements result in a reduction of about 24% of the geothermal exchanger’s length, affecting the economic advantages in the implementation of the entire system. A simple analysis of the reuse of CF waste shows the reduction of industrial waste and the simultaneous elimination of disposal costs, defining new perspectives for industrial waste management. This research provides essential elements for the development of a circular economy and is well integrated with the European challenges about the End of Waste process and reduction of environmental impact, suggesting new perspectives for economic development and sectorial work.
31
Gudmann Knutsson, Sophie, Therese Asplund, Gunnar Höst, and Konrad J. Schönborn. "Public Perceptions of Waste Management in Sri Lanka: A Focus Group Study." Sustainability 13, no. 23 (November 23, 2021): 12960. http://dx.doi.org/10.3390/su132312960.
Full textAbstract:
The prevention, reduction, recycling and reuse of waste is promoted by the United Nation’s 2030 Agenda for Sustainable Development, but many countries lack both necessary resources and infrastructure for sound waste management. While literature pinpoints the need for an engaged public and suggests a range of factors and supportive actions that may impact citizens’ waste behaviour, qualitative in-depth studies for engaging in waste management practices remain scarce. This study aimed to investigate perceptions of waste management and underlying behaviours for waste practices in the context of household waste management in Sri Lanka. Six focus group interviews were held with 23 residents across 6 regions in Sri Lanka. A thematic analysis of the interview transcripts revealed perceptions of four waste management systems, together with five motivational aspects of waste practices in urban, suburban, and rural areas. The analysis further considers how the motivational aspects are interlinked with practices within citizens’ perceived systems. In addition to the novel thematic contribution to the field, the findings can be used as a foundation to inform strategies to communicate with selected target audiences about their local challenges for sustainable waste management practices, in an attempt to influence citizen behaviours.
32
Angaye, Tariwari C. N., Odigo Konmeze, Endurance A. Gbodo, and Ubi Apollos. "Characterization of Commercial Solid Waste Stream in Bayelsa State, Nigeria." Journal of Experimental and Clinical Toxicology 1, no. 2 (April 8, 2019): 12–16. http://dx.doi.org/10.14302/issn.2641-7669.ject-19-2753.
Full textAbstract:
The problem associated inappropriate management of municipal waste to the ecosystem cannot be overemphasized. This study involved the physical characterization of municipal solid waste streams in 4 commercial dumpsites in Yenagoa Metropolis, using the quartile estimate method. Results showed that out of a total mass of 79.82kg; the individual mass composition was reported for garbage (food) waste 33.32 (39%), paper waste 14.90 kg (40.82%), plastic waste 5.12 kg (6%), nylon 11.01kg (13%), metal 4.31 kg (5%), wood 2.29 kg (3%), electronic 5.69 kg (7%), glass/ceramic 3.48 kg (4%) and unclassified waste whose mass was 4.62kg (5%). Disposal of untreated and unsegregated/uncharacterized waste adverse effect to the environment. It is hereby recommended that the populace to desist from illicit disposal of waste stream. In addition all stakeholders and Government in particular should formulate policies the reduction, reuse and recycling of waste stream.
33
Hind, Khogali. "Process for Sustainable Solid Waste Management in Tuti Island, Sudan, during Nile Flood Season; Comparison with International Standards Khogali Hind1." Journal of Sustainable Development 16, no. 1 (January 9, 2023): 107. http://dx.doi.org/10.5539/jsd.v16n1p107.
Full textAbstract:
Tuti Island is at the confluence of the White and Blue Niles and lies at the center of Greater Khartoum. The solid waste volume from houses is estimated at 20 tons, which has a significant impact on human health, the environment, and climate change.
This study aims to investigate the process of solid waste management on Tuti Island. Solid waste includes food remains, construction debris, wood, scrap iron, discarded furniture, and collecting and reusing flood and rainwater International standards state that the solid waste disposal process passes through specific stages.
This study adopts a scientific methodology to analyze the current scenario of measuring the types and quantities of solid waste and find appropriate methods for its collection, transportation, classification, treatment, recycling, reduction, and reuse. The study additionally uses questionnaires for the identification of issues, the types of solid waste, and proposed solutions.
The results demonstrated that 37% of the respondents agreed that solid waste management is addressed it means there’s a process, 45% agreed that they should pay for this service, and 75% agreed that one solution for waste management could be to increase people's awareness. It was proposed to continue this project by supporting people, demanding legislation from the government represented by the Ministry of Environment and policies that support the recycling process.
34
Olukanni, David O., and Ola O. Oresanya. "Progression in Waste Management Processes in Lagos State, Nigeria." International Journal of Engineering Research in Africa 35 (March 2018): 11–23. http://dx.doi.org/10.4028/www.scientific.net/jera.35.11.
Full textAbstract:
One of the challenges of Lagos State is efficient and cost-effective solid waste management. This paper focuses on progress made in waste management operations in the State. An assessment to know how waste generation, collection, transportation and disposal have put demands on state resources, and its physical infrastructure was carried out. The state generates about 12,000 metric tons of waste daily (0.72kg/person/day). Due to limited budgetary allocation, the state government instituted the Lagos State Waste Management Authority (LAWMA) to perform supervisory roles and charged with the implementation, advocacy, monitoring and enforcement of waste management policies. As part of its roles, the agency enlisted Private Service Providers (PSP) for the purpose of appropriate billing of waste services. LAWMA centrally collects revenue and remits agreed portion of 60% of waste charges to individual PSP accounts in accordance to estimated waste collected. The state is focused on resource recovery programs such as composting, land filling and pelletizing of plastics and nylons. The implications (environmental, economic, social and financial) for managing solid waste gives credence to the renewal campaign for resource conservation and environmental sustainability. Thus, the 4 Rs of waste management – Reduction, Reuse, Recovery and Recycling are being demonstrated through establishment of compost production plant, championing of Waste-To-Wealth Initiatives and Renewable Energy (RE).
35
He, Quan Guo, Chun Yan Huang, Hao Chang, and Li Bo Nie. "Progress in Recycling of Plastic Packaging Wastes." Advanced Materials Research 660 (February 2013): 90–96. http://dx.doi.org/10.4028/www.scientific.net/amr.660.90.
Full textAbstract:
The plastic packaging accounts for great proportion in the packaging industry, resulting in great confrontation and challenge for global carbon reduction development because of the plastic packaging wastes (PPW) generation. Thus the fully reasonable utilization of the PPW presents a positive strategy. Based on the international practical policy and demand of PPW management, the article classified the recycling and separation technology, and the reuse and utilization disposal approaches of the PPW. Firstly, it defined the PPW’s source, classification and chemical composition, focusing on the recycling and separation technology principles and practices. Then it discussed several PPW disposal approaches emphasizing on the recycling, and summarized the principles and practices of mechanical recycling, chemical recycling, and energy recycling and biodegradable utilization on the PPW. Finally, it presented a suggestion on recycling and utilization of PPW.
36
Batalov, S. "WAYS TO IMPROVE THE MANAGEMENT AND MONITORING SYSTEM OF HAZARDOUS CONSTRUCTION WASTE MANAGEMENT." Transbaikal State University Journal 27, no. 9 (2021): 6–11. http://dx.doi.org/10.21209/2227-9245-2021-27-9-6-11.
Full textAbstract:
Responsible waste management is an important aspect of sustainable construction. In this context, waste management means eliminating waste wherever possible; minimizing waste where possible; and reusing materials that might otherwise become waste. Solid waste management practices have shown that the reduction, recycling and reuse of waste is important for sustainable resource management. In this scientific work, the development of an organizational, technical and economic mechanism for managing the waste generated during construction is considered. The results of waste management and monitoring of hazardous waste management and objects of their formation are presented. The ways of solving the complex problem of optimizing and improving the efficiency of handling construction waste of destroyed buildings are proposed. The object of the research is hazardous construction waste. The subject of the study is the system of management and monitoring of hazardous waste management in construction. The purpose of the study is to scientifically substantiate possible options for improving the management and monitoring system for the management of hazardous construction waste. Research objectives: to analyze the most dangerous sources of environmental pollution by waste in the construction process, to develop recommendations for improving the management and monitoring system for the management of hazardous construction waste. Methodology and methods of the research. The methodological basis of the research is a set of scientific approaches and methods, including the analysis of scientific sources. The author concludes that in order to improve the management and monitoring system for the management of hazardous construction waste, it is recommended to develop a comprehensive program for the safe management of hazardous construction waste
37
Sánchez-Carracedo, Fermín, and David López. "A Service-Learning Based Computers Reuse Program." Sustainability 13, no. 14 (July 12, 2021): 7785. http://dx.doi.org/10.3390/su13147785.
Full textAbstract:
Higher Education Institutions are facing a challenging situation: how to introduce concepts such as Sustainability or the Circular Economy into their curricula. This study presents how to organize a Computer Reuse Program, an educational proposal for the Reuse, Repair, Refurbishment, Remanufacture and Recycling of computers into a Curriculum and a case study. The proposal is based in the Service-Learning methodology, by which students develop technical and professional skills while undertaking a project that has a direct and real impact on society. Students work on old or broken computers provided by donors, thereby acquiring technical skills. These now flawlessly functioning computers are donated to NGOs and other non-profit organizations, thus endowing the equipment with a much longer life as well as reducing e-waste, one of the fastest-growing waste streams in the world. As a case study, this paper presents the UPC Computer Reuse Program, carried out at Universitat Politècnica de Catalunya UPC-BarcelonaTech. Since the program started in 2004, some 2500 computers have been donated to 359 different organizations in 29 countries, and more than 5200 students have participated. The paper analyzes the impact of the program on society, on the reduction of e-waste, on the environment and on student awareness regarding social justice and sustainability.
38
Mohammed, M., N. Shafiq, N. A. W. Abdallah, M. Ayoub, and A. Haruna. "A review on achieving sustainable construction waste management through application of 3R (reduction, reuse, recycling): A lifecycle approach." IOP Conference Series: Earth and Environmental Science 476 (June 11, 2020): 012010. http://dx.doi.org/10.1088/1755-1315/476/1/012010.
Full text
39
Kopić, Miloš, Tiana Milović, Bojan Matić, Stanislav Jovanović, and Milan Marinković. "Optimum Fluid Content in Pavement Cold In-Place Recycling Containing Waste Materials." Sustainability 14, no. 24 (December 13, 2022): 16691. http://dx.doi.org/10.3390/su142416691.
Full textAbstract:
The planning of road infrastructure undergoes major changes, especially in terms of sustainable development. Recycling of pavement structures involves the reuse of materials from existing pavement structures due to its timesaving and environmental benefits, as well as cost reduction. According to the recycling temperature, recycling can be hot and cold. This paper deals with cold in-place recycling and the determination of the optimum fluid content for by-product materials in mixtures compared with one containing natural zeolite. The content of bitumen emulsion and cement—which are the most used materials so far in cold recycling along with foam bitumen—was replaced with fly ash, slag or natural zeolite, and bakelite, respectively, while recycled asphalt pavement from Serbia (Žabalj) was used. Six different mixtures were made. The mixture with the addition of fly ash had the highest optimum fluid content (7.6%) compared with all test mixtures. Mixtures with slag, natural zeolite, and bakelite were in the range of a mixture containing 2% cement. Furthermore, the mixture with 3% cement had the lowest optimum fluid content (5.7%) in comparison to all the mixtures that were tested.
40
Semba, Toshiro, Yuji Sakai, Miku Ishikawa, and Atsushi Inaba. "Greenhouse Gas Emission Reductions by Reusing and Recycling Used Clothing in Japan." Sustainability 12, no. 19 (October 5, 2020): 8214. http://dx.doi.org/10.3390/su12198214.
Full textAbstract:
According to the Ellen MacArthur Foundation, 73% of used clothing is landfilled or incinerated globally and greenhouse gas (GHG) emissions from fabric manufacturing in 2015 amounted to 1.2 billion tons. It must be reduced in the future, especially by reusing and recycling used clothing. Based on this perspective, researchers calculated the energy consumption and GHG emissions associated with reusing and recycling used clothing globally with a life cycle assessment (LCA). However, no study was conducted so far to estimate the total GHG emission reductions in Japan by reusing and recycling used clothing. In this study, the amount of used clothing currently discharged from households as combustible and noncombustible waste and their fiber types were estimated using literature. Then, the methods for reusing and recycling of used clothing were categorized into the following 5 types based on fiber type, that is, “reuse overseas,” “textile recycling to wipers,” “fiber recycling,” “chemical recycling” and “thermal recycling.” After that, by applying LCA, the GHG emission reductions by above 5 methods were estimated, based on the annual discharged weights of each fiber type. Consequently, the total GHG emissions reductions by reusing and recycling 6.03 × 108 kg of used clothing totally were estimated around 6.60 × 109 kg CO2e, to range between 6.57 × 109 kg CO2e and 6.64 × 109 kg CO2e, which depended on the type of “chemical recycling.” The largest contribution was “reuse overseas,” which was 4.01 × 109 kg CO2e corresponded to approximately 60% of the total reduction. Where, it was assumed that used clothing were exported from Japan to Malaysia which was currently the largest importing country. In this case, GHG emissions to manufacture new clothing in China, the largest country currently to export them to Japan, can be avoided, which are 29.4 kg CO2e and 32.5 kg CO2e respectively for 1 kg jeans and 1 kg T-shirts. Adding the GHG emissions for overseas transportation to this, on average, 32.0 kg CO2e per kg of used clothing was reduced by “reuse overseas,” which was 19.6 times larger than GHG emissions by incineration, 1.63 kg CO2e per kg, in which carbon neutrality for cotton was not counted. As the result, the total GHG emission reductions above mentioned, around 6.60 × 109 kg CO2e, corresponds to 70% of the GHG emissions by incineration of total household garbage in Japan.
41
Adhikari, Ram Chandra. "Investigation on Solid Waste Management in Developing Countries." Journal of Research and Development 5, no. 1 (December 12, 2022): 42–52. http://dx.doi.org/10.3126/jrdn.v5i1.50095.
Full textAbstract:
Solid waste is global problem relating to environment, society and economics. Waste management is challenging issue as the quantity has been increasing with increase of population, urbanization and economic status. Some dozens of printed and online published books, journals, dissertations, website of agencies etc. were reviewed and by making outline and following guideline this article was prepared. It is found that the waste production varies from 0.25Kg to 1.38 Kg per capita per day in developing countries. In south South American countries it was recorded 1.07 Kg/capita/day, in Asian countries 0.4 to 1.62Kg/capita/day and in African region it was found 0.49 Kg/capita/day of waste production. The waste contains mostly biodegradable (50% to 80%). The collection system was very poor and from rural area only 10% to 20% waste and in urban area 44% to 90% of total produced waste was carried to collecting and management system. The common waste management’s adopted in developing countries were open dumping, landfill site, composting, incineration and open burning etc. From 18% to 92% of waste were found to dumping. In east pacific region 46% and in American countries 68.5% of total waste was carried to landfill site. The use of incinerator is scarcely found. Only in few countries well managed composting plants could be observed. Some landfill sites and incinerating plant shave generated electricity, biogas, brickets etc. Some pointed research gaps in this field are waste management and biodiversity, medicinal and hazardous waste management, vermicomposting etc. It can be recommended that for the waste management public awareness, participation of locals, application of reduction, reuse and recycling concept, waste management inside house premise, modernization and scientific management of solid wastes. Further researches are needed in different aspects of waste and management for the complete solution.
42
Dahab, M. F., D. L. Montag, and J. M. Parr. "Pollution prevention and waste minimization at a galvanizing and electroplating facility." Water Science and Technology 30, no. 5 (September 1, 1994): 243–50. http://dx.doi.org/10.2166/wst.1994.0243.
Full textAbstract:
Pollution prevention, often referred to as source reduction, encompasses all activities that lead to reductions in the amount and/or toxicity of wastes. Waste minimization, on the other hand, refers to all activities including source reduction, on-site reuse, and recycling that lead to reductions in the amount and/or toxicity of waste generated, stored, treated, or disposed of by a given facility. Pollution prevention generally is regarded as the most cost-effective component of integrated waste management strategies. This paper describes an industrial pollution prevention program at an aging manufacturing facility in the Midwestern United States. The study focuses on metal electroplating and galvanizing. The facility under study produces fabricated metal products for farm and industrial use. The facility performs many operations including electroplating, conversion coating, cleaning, machining, grinding, impact deformation, shearing, welding, sand blasting, hot-dip galvanizing, painting, assembly and testing. Many of these processes result in the production of a variety of pollutants (gaseous, solid, and liquid) that must be disposed of in some fashion. For example, the electroplating line results in the production of acids and rinse water containing zinc and chromium and the hot-dip galvanizing line results in the production of acids and rinse water containing zinc and iron. All of these wastes must be treated as hazardous substances. The painting processes result in the production of used industrial acids, solvents, and chemicals used for cleaning and de-greasing metal components. Most of the recommended operational and process modifications were simple to implement, and their pay-back periods were fairly short.
43
Ünlü, Medine Gül, Vildanur Dinç, Katarzyna Midor, and Grażyna Płaza. "Plastic waste management in the smart cities: Poland and Turkey as a case study." Scientific Papers of Silesian University of Technology. Organization and Management Series 2023, no. 166 (2023): 829–49. http://dx.doi.org/10.29119/1641-3466.2022.166.52.
Full textAbstract:
Introduction/background: Waste in various forms, such as solid waste, gaseous waste, and liquid waste, increases as a result of population growth, urbanization, and industrialization, and has a global impact. Waste management entails activities such as reuse, recycling, and reducing waste generation, as well as other strategies to combat the effect of waste generation caused by increasing population and industrialization. Monitoring is a critical function of waste management because it is required to address waste management issues such as waste generation, waste collection, waste transportation, waste treatment, and waste disposal. The article presents plastic waste management in the context of smart cities. Purpose: The goal of the article is to present and compare of the production of plastic waste in Poland and Turkey in the context of smart cities. Sustainable and eco-innovation plastic waste management solutions to reduce plastic waste are provided to be implemented in smart cities. In this study, smart cities are explained, how to manage plastic waste by using smart city components, and methods of dealing with plastic waste are explained. Methodology: The article is based on a review of the literature, own observations and own experience. The currently available plastic waste management solutions were analyzed and examples in the implementation of the technology in a smart city are described. Findings: The incorporation of smart city technology into waste management practices provides a smart way to solve waste issues. The main of plastic waste management is to develop methods to transform plastic waste into a circular economy. As estimated by 2030 plastic leakage to ecosystems should be 30% reduced, double the global recovery of plastic (collection and recycling), and shift to sustainable inputs for remaining plastic, including recycled content, sustainably sourced biocontent, advanced products and reducing unnecessary plastic through a business model, innovation, reduction and substitution. Originality: The goal of waste management is to recover as much useful material as possible, including energy. Waste generated in smart cities is a category of municipal waste. Traditional approaches to waste management have failed because they are not reliable or sustainable because they require a lot of input for little or no work output. The incorporation of smart city technology into waste management practices provides a smart way to solve waste issues. The main of plastic waste management is to develop methods to transform plastic waste into a circular economy. Keywords: Plastic wastes, waste management, smart cities, eco-innovation solutions.
44
Hepsiba, R. Padma, Priya Nair, Amritha Krishna, Christina Romiya Jose, Kajo Chauhan, Neethu Thomas, and Srada Suresh. "A Descriptive Study to Assess the Knwoledge and Pratice Regarding Domestic Waste Management among Households in a Selected Urban Community." Journal of Nursing Practices and Research 2, no. 1 (April 29, 2022): 44–46. http://dx.doi.org/10.36647/jnpr/02.01.a009.
Full textAbstract:
There are eight major categories of waste management, and each of them can be divided into numerous sub-categories. The categories include source reduction and reuse, animal feeding, recycling, composting, fermentation, landfills, incineration, and land application. Domestic waste is waste that is generated as a result of the ordinary day-to-day use of a domestic premise and is either taken from the premises by or on behalf of the occupier who generated the waste; without consideration (e.g., payment, reward or other benefit); or collected by or on behalf of a local government as part of a waste collection and disposal system. Objectives: • To assess the knowledge regarding the domestic waste management among the household in the selected community. • To assess the practice of the domestic waste management by the household in the selected community. Methodology: Research Approach Quantitative Research Study design: Descriptive design. Tool: Structured questionnaire Sampling Technique: convenient sampling. Research Setting: NC(E) Quarters of CHAFB. Result: The study revealed that 10% had a poor knowledge, 76.7% had a moderate knowledge and 13.3% had a good knowledge regarding domestic waste management. It also showed that 6.7% had poor practice, 53% had a moderate practice and 40% had satisfactory practice of domestic waste. Keywords: Knowledge, Practice, Domestic waste, domestic waste management, selected urban community.
45
Neto, Geraldo Cardoso de Oliveira, Auro de Jesus Cardoso Correia, Henrricco Nieves Pujol Tucci, Rosângela Andrade Pita Brancalhão Melatto, and Marlene Amorim. "Reverse Chain for Electronic Waste to Promote Circular Economy in Brazil: A Survey on Electronics Manufacturers and Importers." Sustainability 15, no. 5 (February 24, 2023): 4135. http://dx.doi.org/10.3390/su15054135.
Full textAbstract:
Government requirements for the management of waste electrical and electronic equipment (WEEE) by electronics manufacturers and importers has raised some difficulties in structuring the reverse chain of WEEE in Brazil, notably due to the territorial extension of the country. The need to implement circular economy practices (CE) in the reverse chain of WEEE has been acknowledged as a key requirement for sustaining the international competitiveness of Brazilian companies. In this context, this study sets up to evaluate the flows of the reverse chain of WEEE, aiming to promote CE as well as its actions for the recycling, reuse, remanufacturing, and reduction of WEEE in Brazil. The study identifies and characterizes key manufacturing decisions for developing waste management capabilities, including the need for waste management responsibilities for installing and operating the collection points and transporting waste to recyclers. Likewise, the study highlights the relevance of the adoption of strategies for selling recycled materials to the secondary market, along with reusing and reducing the use of virgin materials. Initially, the managerial strategy is based on recycling and remanufacturing actions due to short-term monetary revaluation, in addition to the immediate resolution of the complex problem. It should be noted that the decision to outsource WEEE management does not exempt the manufacturer from reusing and reducing material consumption, an important contribution that must be taken into account in organizational practice, beyond the immediate resolution of the complex problem.
46
Shittu, Olanrewaju S., Ian D. Williams, Peter Shaw, Natalie Montiero, and Rhiannon Creffield. "Demonstrating reuse of EEE in a distinct urban mine: a case study." Detritus, no. 15 (June 30, 2021): 78–93. http://dx.doi.org/10.31025/2611-4135/2021.15091.
Full textAbstract:
At the heart of the circular economy model is the reorientation of consumer behaviours away from disposing of items before they reach end of their functional life as a step towards resource efficiency and reduction of environmental impacts. One way to facilitate this change is to enable proactive redistribution of electrical and electronic equipment (EEE) with reuse value from urban spaces followed by high quality recycling at end-of-life. We have conducted the first assessment and critical evaluation of a model for the recovery of reusable EEE from a distinct urban mine (DUM) - in this case, a university. The Infrastructure, Service and Behaviour (ISB) model was used as a guide for interventions. EEE recovered from two Halls of Residence at the University of Southampton were characterised and sorted. From the items inspected, 97% was reusable and were donated to participating charities for redistribution via reuse/sale. The results show that an ISB Model system designed using choice architecture to recover reusable EEE from a DUM contributes strongly to extending products’ lifetimes and promotes circular economy ambitions. The study provides strong evidence of a viable reuse-based recovery system for small EEE in a university DUM and with a potential for replicability at global scale. It is recommended that a carefully planned and tailored system based on the ISB model should be put in place in universities for the recovery and redistribution of reusable EEE (ReEEE) and that recycling is implemented only after practical options for reuse have been exhausted.
47
Romualdo, Alvin, Jinnifer Arroyo, and Cheryl Marie Cristobal-Cipriano. "Analysis on policy implementation and institutional integration of RA 9003 SWM indicators in educational institutions." Journal of Social Sciences and Management Studies 1, no. 3 (August 19, 2022): 91–97. http://dx.doi.org/10.56556/jssms.v1i3.210.
Full textAbstract:
This study attempts to assess the extent of implementation and integration of solid waste management indicators in public and private schools in General Santos in terms of waste reuse, waste reduction, waste collection, waste recycling, waste treatment, final waste disposal, and IEC advocacy/campaign. A modified questionnaire was given to the respondents which were composed of Senior High School students, Science teachers, and school administrators of one (1) private and public school. The comparative result of implementation and integration between the public and private schools revealed that both schools implement and integrate the policy on solid waste management to a great extent with a composite mean of 3.55 and 3.42 respectively. T-test result on the extent of the implementation and integration of Solid Waste Management between the two selected big schools in General Santos City showed no significant difference with a t-value of 1.03941and the p-value of 0.319106 which is less than 0.05 (p<.05). This justifies that the two public and private schools in General Santos City implements and integrates Solid Waste Management to a great extent. It is imperative, therefore, for the schools to continue prioritizing the programs and advocacies on solid waste management. The school administrators must also maintain high standards of integrating SWM in the learning process through campaigns, incentives, partnerships, organizational resources, and equity.
48
Jesus, Sara, Cinthia Maia Pederneiras, Catarina Brazão Farinha, Jorge de Brito, and Rosário Veiga. "Reduction of the Cement Content by Incorporation of Fine Recycled Aggregates from Construction and Demolition Waste in Rendering Mortars." Infrastructures 6, no. 1 (January 16, 2021): 11. http://dx.doi.org/10.3390/infrastructures6010011.
Full textAbstract:
The construction sector is responsible for one third of the total wastes produced in the EU. Finding solutions for the reuse or recycling of these wastes is one of the major environmental concerns of modern times. The replacement of sand or cement in specific construction materials, such as concrete or mortars, is a possible solution for these wastes’ management. By using construction and demolition wastes in construction materials, namely on buildings, the cycle of circular economy is closed, increasing the life cycle of the wastes in the same sector. In this research, a reduction of cement content in rendering mortars is analysed. This reduction is achieved by a decrease of the cement/aggregate ratio simultaneously with the incorporation of very fine recycled aggregate from construction and demolition waste. Two recycled aggregates were studied: recycled concrete aggregate (RCA) and mixed recycled aggregate (MRA). The fresh and hardened state properties of the mortars were analysed. Several tests were carried out to evaluate the mortars’ performance, such as mechanical strength tests, water absorption tests, drying tests and shrinkage. It was noticed that the incorporation of RCA led to a better behaviour than in the reference mortar, in terms of mechanical strengths and protection against water.
49
Hubmann, G., and V. van Maaren. "Circular Material Systems: anticipating whole-system design in architecture and construction." IOP Conference Series: Earth and Environmental Science 1078, no. 1 (September 1, 2022): 012002. http://dx.doi.org/10.1088/1755-1315/1078/1/012002.
Full textAbstract:
Abstract The construction sector is one of the most resource intense and environmentally damaging industries in the world. A promising approach to counteract this is to use principles of the Circular Economy (input reduction, reuse, and recycling) to ensure the continuity of value of a building’s materials. Thus, we translated the learnings of an in-depth case study analysis including four buildings and their construction processes into a definition and framework for circular construction. We conceptualise buildings as circular systems that produce reusable components or biodegradable materials by practices operating across a building’s lifecycle. These practices do not only include material and design aspects to close biological and technological loops, but also immaterial practices such as knowledge and expertise, locality, management and skills, and information. We argue that these organisational aspects that go beyond the current state of the art are critical enablers for circularity in construction. This perspective is relevant for practitioners in the field and allows for a new and holistic look at buildings as ‘waste generators’ or, in a positive scenario, as ‘material depots’. Designing for recycling and reuse will require architects to build collaborations and knowledge across and beyond material value chains.
50
Kotei, Prince, Ted Annang, and Dzidzo Yirenya-Tawiah. "Stakeholder Participation for Sustainable Solid Waste Management in Ga West Municipality, Accra – Ghana." American Journal of Environment Studies 3, no. 1 (November 19, 2020): 44–60. http://dx.doi.org/10.47672/ajes.611.
Full textAbstract:
Purpose: This study assessed the participation of identified stakeholders in solid waste management (SWM) in Ga West Municipality. The specific objectives of the study included the examination of the interests, importance and influence of identified stakeholders as well as an assessment of their strengths, weaknesses, threats and opportunities.
Methodology: Qualitative research methods were used for data collection. This involved using semi-structured interviews with open and close ended questions, informal interviews, focus group discussion and observation. The study identified ten (10) stakeholders. They included households, market traders, food processors, schools, lorry stations, Ga West Municipal Assembly, skip site operators, scavengers, Private waste operators and waste disposal facility. The study employed multiple sampling techniques. Stakeholder analysis was used to understand stakeholder roles, responsibilities and power influence relations. Strength, Weakness, Opportunity and Threat (SWOT) analysis was carried out to assess the internal and external merits, prospects and challenges facing these stakeholders in sustainable SWM.
Findings: The findings of the study revealed that stakeholder involvement in SWM was low. Opportunities existed for compost and recycling but half of the total waste generated was uncollected and recovery rate was very low.
Recommendation: This study proposes stakeholder consultation and involvement, recognition and integration of scavengers and intensification of public education on solid waste collection, reduction, reuse, recovery and recycling.
Unique contribution to theory, practice and policy: Stakeholders had varying degree of interest, importance and capacity to influence SWM. All stakeholders had peculiar strengths, weaknesses, opportunities and threat which must be carefully exploited and managed for the achievement of a sustainable SWM.
Keywords: sustainability, strengths, weaknesses, opportunities, threats and influence