Journal articles: 'Alternative waste technologies'

1

Kolar, James L. "Alternative energy technologies." Environmental Quality Management 10, no. 2 (2000): 45–54. http://dx.doi.org/10.1002/1520-6483(200024)10:2<45::aid-tqem6>3.0.co;2-p.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Valenti, Michael. "Rx For Medical Waste." Mechanical Engineering 122, no. 09 (September 1, 2000): 52–56. http://dx.doi.org/10.1115/1.2000-sep-1.

Full text

Abstract:

This article reviews many hospitals and medical centers have found it more economical to replace their on-site incinerators with alternative waste treatment technologies, primarily microwave systems or steam autoclaves, or send waste to treatment companies that are equipped with disinfection technologies. Sanitec International Holdings of West Caldwell, NJ, illustrates the in roads that alternatives are making to medical waste incineration. The entire Sanitec disinfection system is enclosed in all-weather steel housing, and is connected to the hospital’s electrical and water systems. Hospital workers bring collected waste in carts to the automated lift and load system, which raises the cart and empties it into the infeed hopper. The MediWaste system at Laredo is designed to treat up to 200 pounds of material per hour, which is more than sufficient to treat the 700 to 800 pounds of waste generated per day. Although incineration alternatives appear to be gaining popularity, combustion is still used to disinfect and reduce much clinical waste.

APA, Harvard, Vancouver, ISO, and other styles

3

Salkin, I. F. "Conventional and alternative technologies for the treatment of infectious waste." Journal of Material Cycles and Waste Management 5, no. 1 (March 1, 2003): 9–12. http://dx.doi.org/10.1007/s101630300002.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Amândio, Mariana S. T., Joana M. Pereira, Jorge M. S. Rocha, Luísa S. Serafim, and Ana M. R. B. Xavier. "Getting Value from Pulp and Paper Industry Wastes: On the Way to Sustainability and Circular Economy." Energies 15, no. 11 (June 2, 2022): 4105. http://dx.doi.org/10.3390/en15114105.

Full text

Abstract:

The pulp and paper industry is recognized as a well-established sector, which throughout its process, generates a vast amount of waste streams with the capacity to be valorized. Typically, these residues are burned for energy purposes, but their use as substrates for biological processes could be a more efficient and sustainable alternative. With this aim, it is essential to identify and characterize each type of waste to determine its biotechnological potential. In this context, this research highlights possible alternatives with lower environmental impact and higher revenues. The bio-based pathway should be a promising alternative for the valorization of pulp and paper industry wastes, in particular for bioproduct production such as bioethanol, polyhydroxyalkanoates (PHA), and biogas. This article focuses on state of the art regarding the identification and characterization of these wastes, their main applied deconstruction technologies and the valorization pathways reported for the production of the abovementioned bioproducts.

APA, Harvard, Vancouver, ISO, and other styles

5

ROBBAT, ALBERT. "Hazardous Waste Site Investigation and Cleanup: Innovative Technologies, an Alternative Approach." Hazardous Waste and Hazardous Materials 11, no. 2 (January 1994): 249–51. http://dx.doi.org/10.1089/hwm.1994.11.249.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Rachiero, Giovanni P., Paula Berton, and Julia Shamshina. "Deep Eutectic Solvents: Alternative Solvents for Biomass-Based Waste Valorization." Molecules 27, no. 19 (October 5, 2022): 6606. http://dx.doi.org/10.3390/molecules27196606.

Full text

Abstract:

Innovative technologies can transform what are now considered “waste streams” into feedstocks for a range of products. Indeed, the use of biomass as a source of biopolymers and chemicals currently has a consolidated economic dimension, with well-developed and regulated markets, in which the evaluation of the manufacturing processes relies on specific criteria such as purity and yield, and respects defined regulatory parameters for the process safety. In this context, ionic liquids and deep eutectic solvents have been proposed as environmentally friendly solvents for applications related to biomass waste valorization. This mini-review draws attention to some recent advancements in the use of a series of new-solvent technologies, with an emphasis on deep eutectic solvents (DESs) as key players in the development of new processes for biomass waste valorization. This work aims to highlight the role and importance of DESs in the following three strategic areas: chitin recovery from biomass and isolation of valuable chemicals and biofuels from biomass waste streams.

APA, Harvard, Vancouver, ISO, and other styles

7

Braverman, V. Ya, and V. V. Vlasyuk. "ТECHNOLOGIES OF UTILIZATION OF MUNICIPAL SOLID WASTE AS A SOURCE OF RECEIVING ALTERNATIVE ENERGY RESOURCES ON THE EXSAMPLE OF ODESSA REGION (REVIEW)." Energy Technologies & Resource Saving, no. 1 (March 20, 2017): 54–59. http://dx.doi.org/10.33070/etars.1.2017.06.

Full text

Abstract:

The problems of solid waste utilization are considered. It is shown that modern technologies of processing allow to consider waste as an alternative renewable resource. A comparison of different technologies of thermal treatment of unsorted waste to generate heat and electricity, such as gasification, pyrolysis, burning in industrial boilers on furnace grates, plasma processing of waste are represented. The main characteristics of industrial plants based on these technologies are discussed. Considered schemes for solving the problems of disposal of municipal solid waste generated in the Odessa region for their practical implementation, such as rice husk, cane, rice stalks, grain straw, medical waste, waste car tires. Specific recommendations on the construction in Odessa region industrial capacities for utilization of solid waste are represented. Bibl. 11.

APA, Harvard, Vancouver, ISO, and other styles

8

Gubacheva, L. A., D. Yu Chizhevskaya, I. V. Makarova, and A. A. Andreev. "TECHNOLOGIES OF RATIONAL NATURE MANAGEMENT IN TRANSPORT." Ecology. Economy. Informatics.System analysis and mathematical modeling of ecological and economic systems 1, no. 5 (2020): 123–29. http://dx.doi.org/10.23885/2500-395x-2020-1-5-123-129.

Full text

Abstract:

In modern conditions, the problem of waste pollution of the earth bowels, the atmosphere, natural and artificial water areas is especially acute. Domestic wastes are incinerated or taken to a landfill, as a result, there is an environmental damage – the area of alienated land resources increases and the atmosphere is polluted. The negative impact of municipal solid waste (MSW) on the environment, leading to climate change, an increase in the greenhouse effect and an increase in the number of natural hazards, makes it necessary to search for solutions to reduce harmful emissions into the atmosphere, increase the energy efficiency of processes, in particular, in transport systems, due to fuel efficiency using. The most negative impact on the state of the air environment is exerted by emissions in the exhaust gases of internal combustion engines, including those using natural gas, nitrogen monoxides and dioxides as fuel. Reducing harmful emissions is possible, for example, by improving the technology for producing generator gas as an alternative fuel, which makes it possible to reduce the concentration of nitrogen oxides in any devices for burning up solid, liquid and gaseous fuels in internal combustion engines. The article discusses the issues of waste generation and their impact on the environment, the technologies for rational use of natural resources in transport and methods for improving waste processing technologies are presented. A new horizontal design of a combined automobile gas generator has been developed. It makes it possible to transfer the power supply from liquid motor fuel to generator gas produced from woodworking industry waste, agricultural waste, solid household and polyethylene-containing waste. This will reduce pollution of the world’s oceans by slowly decomposing polyethylene, which are now acquiring the character of a disaster on a planetary scale. An increase in the environmental level of gasoline engines and a decrease of the amount of waste during the operation of road transport will be achieved with the modernization of the waste processing plant to obtain energy carriers for transport. In its turn, it will make it possible to form a natural and technical system to ensure environmental safety and protect the natural environment.

APA, Harvard, Vancouver, ISO, and other styles

9

Zulqarnain, Muhammad Ayoub, Mohd Hizami Mohd Yusoff, Muhammad Hamza Nazir, Imtisal Zahid, Mariam Ameen, Farooq Sher, Dita Floresyona, and Eduardus Budi Nursanto. "A Comprehensive Review on Oil Extraction and Biodiesel Production Technologies." Sustainability 13, no. 2 (January 15, 2021): 788. http://dx.doi.org/10.3390/su13020788.

Full text

Abstract:

Dependence on fossil fuels for meeting the growing energy demand is damaging the world’s environment. There is a dire need to look for alternative fuels that are less potent to greenhouse gas emissions. Biofuels offer several advantages with less harmful effects on the environment. Biodiesel is synthesized from the organic wastes produced extensively like edible, non-edible, microbial, and waste oils. This study reviews the feasibility of the state-of-the-art feedstocks for sustainable biodiesel synthesis such as availability, and capacity to cover a significant proportion of fossil fuels. Biodiesel synthesized from oil crops, vegetable oils, and animal fats are the potential renewable carbon-neutral substitute to petroleum fuels. This study concludes that waste oils with higher oil content including waste cooking oil, waste palm oil, and algal oil are the most favorable feedstocks. The comparison of biodiesel production and parametric analysis is done critically, which is necessary to come up with the most appropriate feedstock for biodiesel synthesis. Since the critical comparison of feedstocks along with oil extraction and biodiesel production technologies has never been done before, this will help to direct future researchers to use more sustainable feedstocks for biodiesel synthesis. This study concluded that the use of third-generation feedstocks (wastes) is the most appropriate way for sustainable biodiesel production. The use of innovative costless oil extraction technologies including supercritical and microwave-assisted transesterification method is recommended for oil extraction.

APA, Harvard, Vancouver, ISO, and other styles

10

Tsai, Tsuey-Lin, Yi-Fu Chiou, and Shih-Chin Tsai. "Overview of the Nuclear Fuel Cycle Strategies and the Spent Nuclear Fuel Management Technologies in Taiwan." Energies 13, no. 11 (June 10, 2020): 2996. http://dx.doi.org/10.3390/en13112996.

Full text

Abstract:

The continued use of nuclear energy has come into question due to the difficulties in managing radioactive waste, and public opposition has increased since the Fukushima nuclear disaster in March 2011. Nonetheless, the novel spent nuclear fuel (SNF) management technologies proposed indicate new pathways toward facilitating the environment and the sustained use of nuclear energy. The reprocessing and recycling of SNF provides an alternative to direct geological disposal. In this article, we examine the current status and strategic alternatives of radioactive waste management in Taiwan.

APA, Harvard, Vancouver, ISO, and other styles

11

Mikhailova, N. V., and A. V. Yasinskaya. "Modern Technologies for Energy Utilization of MSW." Ecology and Industry of Russia 24, no. 8 (August 7, 2020): 4–11. http://dx.doi.org/10.18412/1816-0395-2020-8-4-11.

Full text

Abstract:

A review of modern technological solutions for the thermal processing of waste is presented. Traditional and alternative thermal technologies are described, characterized by a high degree of elaboration. The analysis of the possibility of using each of the considered technologies for energy utilization of municipal solid waste (MSW) in the mode of an industrial large-tonnage enterprise is carried out. Guided by the criteria of resource efficiency, cost, availability and level of industrial development, technological solutions that are promising for implementation in Russia in the next years have been selected.

APA, Harvard, Vancouver, ISO, and other styles

12

Englert, Matthias, Simone Mohr, Saleem Chaudry, and Stephan Kurth. "Alternative Disposal Options for High-Level Radioactive Waste." Safety of Nuclear Waste Disposal 1 (November 10, 2021): 259–60. http://dx.doi.org/10.5194/sand-1-259-2021.

Full text

Abstract:

Abstract. Are alternatives to the disposal of high-level radioactive waste in a geology repository conceivable? We present the results of the first phase of a research project on the state of the art in science and technology for alternative disposal options. The project is financed by the Federal Office for the Safety of Nuclear Waste Management. Most recently, in 2015, the German Commission on the Storage of High-Level Radioactive Waste (Endlagerkommission) evaluated possible disposal technologies and classified them as either promising, conceivable, or to be pursued further. Only final disposal in a geological repository was considered promising. Conceivable, but not immediately available or not advantageous, were storage in deep boreholes (DBs), long-term interim storage (LTIS), and partitioning and transmutation (P&T). All other alternative disposal options by burial, dilution, or removal from the planet were determined not to be worth pursuing. The Disposal Commission did conclude that none of the three conceivable methods (DBs, LTIS, P&T) would result in earlier disposal of high-level radioactive waste than the preferred final disposal in a mine. However, it recommended continued tracking and regular monitoring of the future development of alternative disposal options, e.g., disposal in deep boreholes. Finally, in 2017, with the amended Site Selection Act, the federal government specified disposal in a repository mine with the option of retrieval during operation or recovery for 500 years after closure. In a learning site selection process, the Federal Office for the Safety of Nuclear Waste Disposal (BASE) reviews the proposals of the project managing company, the Federal Company for Radioactive Waste Disposal (BGE), and prepares a reasoned recommendation to the federal government for a site with the best possible safety. Part of the reasoned recommendation is, among other things, a discussion of alternative disposal options to final disposal in deep geological formations. In the presentation, we report on the status of international research on alternative disposal options, discuss advantages and disadvantages of the technologies, and evaluate the potential of the technologies for the disposal of high-level radioactive waste in Germany. The LTIS is designed as dry storage in a building to be constructed above ground or near the surface and is expected to last for a period of several hundred years. With LTIS it would be possible to gain time for the development of a suitable final disposal option; however, this also postpones the disposal issue indefinitely into the future with undetermined methods. DB storage would involve sinking the storage containers into boreholes with depths of up to 5000 m. This could reduce the expense and be particularly advantageous for smaller inventories, although the potential for the use of engineered barriers would be limited and retrievability precluded according to the current state of the art in science and technology. P&T is primarily intended to separate long-lived transuranic elements from high-level radioactive waste and then convert them to short-lived fission products by neutron irradiation in reactors. The main goal is to reduce the necessary containment times in the repository by changing the inventory, but the effort to treat the waste would be significant and a repository for high-level nuclear waste is still needed. More exotic ideas for alternative disposal include deep geological injection of liquid waste, waste forms that melt themselves into rock, storage inside the ocean floor or subduction zones, shipment to space, burial in ice sheets, or dilution in the atmosphere and oceans. None of these exotic options is currently being actively pursued.

APA, Harvard, Vancouver, ISO, and other styles

13

Zhulidov, I. M., E. G. Abramova, A. K. Nikiforov, M. V. Antonycheva, I. V. Shul'gina, O. A. Lobovikova, N. I. Vakhrushina, et al. "Non-Waste Alternative Technologies in the Production of Heterologous Anti-Rabies Immunoglobulin." Problems of Particularly Dangerous Infections, no. 4(110) (August 20, 2011): 80–84. http://dx.doi.org/10.21055/0370-1069-2011-4(110)-80-84.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Thyberg, Krista L., and David J. Tonjes. "The environmental impacts of alternative food waste treatment technologies in the U.S." Journal of Cleaner Production 158 (August 2017): 101–8. http://dx.doi.org/10.1016/j.jclepro.2017.04.169.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Šedina, Jakub, Jan Valentin, Petr Mondschein, and Jan Suda. "Alternative Micro-Milled Binders in Cold Recycling Technologies." Slovak Journal of Civil Engineering 27, no. 2 (June 1, 2019): 16–20. http://dx.doi.org/10.2478/sjce-2019-0011.

Full text

Abstract:

AbstractIn addition to bituminous binders (bituminous emulsion, foamed bitumen), hydraulic binders are applied in cold recycling technologies to increase the strength of a final structural layer as well as to increase its resistance to water and frost impacts. This paper deals with the use of energy by-products from fluidized bed coal combustion and mineral waste and their modification into reactive material with the potential of replacing commonly used hydraulic binders. The increase in the reactive potential takes place through a high-speed milling process where the mechanical-chemical activation of the material takes place. This process is associated with the refinement of the material, a higher proportion of micro and nanoparticles, an increased surface area, opening of particles, etc. The material treated exhibits binding properties, and it can be used as an active filler that allows for the partial or complete substitution of hydraulic binders. The experimental part is focused on the application of alternative binders to cold recycling mixtures and their assessment according to valid technical regulations, i.e., an assessment of their indirect tensile strength and water susceptibility as well as compressive strength and resistance to the effects of water and frost.

APA, Harvard, Vancouver, ISO, and other styles

16

Khorokhorina, I. V., S. I. Lazarev, and S. M. Bidulya. "Membrane Technologies as Environmentally Safe Methods of Waste Water Purification." Voprosy sovremennoj nauki i praktiki. Universitet imeni V.I. Vernadskogo, no. 3(81) (2021): 037–43. http://dx.doi.org/10.17277/voprosy.2021.03.pp.037-043.

Full text

Abstract:

A classification of chemical purification technologies, membrane processes, depending on the pore size in membranes is given. It has been established that environmentally friendly membrane methods for separating liquid media are an alternative to traditional methods for separating technological solutions and industrial waste waters.

APA, Harvard, Vancouver, ISO, and other styles

17

Biernat, Krzysztof, Paulina Luiza Dziołak, and Izabela Samson-Bręk. "Technologie energetycznego wykorzystania odpadów." Studia Ecologiae et Bioethicae 9, no. 2 (June 30, 2011): 103–29. http://dx.doi.org/10.21697/seb.2011.9.2.06.

Full text

Abstract:

The aim of this paper is to show municipal and organic waste as an alternative source of energy and the benefits which can bring their energy use. These benefits concern both environmental reasons, as well as freedom from conventional energy sources and increasing energy security. The article discusses the biogas technology and plasma technology as the most promising waste to energy technologies.

APA, Harvard, Vancouver, ISO, and other styles

18

Nascimento, Lucas, André Ribeiro, Ana Ferreira, Nádia Valério, Vânia Pinheiro, Jorge Araújo, Cândida Vilarinho, and Joana Carvalho. "Turning Waste Cooking Oils into Biofuels—Valorization Technologies: A Review." Energies 15, no. 1 (December 24, 2021): 116. http://dx.doi.org/10.3390/en15010116.

Full text

Abstract:

In search of a more sustainable society, humanity has been looking to reduce the environmental impacts caused by its various activities. The energy sector corresponds to one of the most impactful activities since most energies produced come from fossil fuels, such as oil and coal, which are finite resources. Moreover, their inherent processes to convert energy into electricity emit various pollutants, which are responsible for global warming, eutrophication, and acidification of soil and marine environments. Biofuels are one of the alternatives to fossil fuels, and the raw material used for their production includes vegetable oils, wood and agricultural waste, municipal waste, and waste cooking oils (WCOs). The conventional route for WCO valorization is the production of biodiesel, which, as all recovery technologies, presents advantages and disadvantages that must be explored from a technical and economic perspective. Despite its successful use in the production of biodiesel, it should be noticed that there are other approaches to use WCO. Among them, thermochemical technologies can be applied to produce alternative fuels through cracking or hydrocracking, pyrolysis, and gasification processes. For each technology, the best conditions were identified, and finally, projects and companies that work with this type of technology and use WCO were identified.

APA, Harvard, Vancouver, ISO, and other styles

19

Teh, Jun Sheng, Yew Heng Teoh, Heoy Geok How, Thanh Danh Le, Yeoh Jun Jie Jason, Huu Tho Nguyen, and Dong Lin Loo. "The Potential of Sustainable Biomass Producer Gas as a Waste-to-Energy Alternative in Malaysia." Sustainability 13, no. 7 (April 1, 2021): 3877. http://dx.doi.org/10.3390/su13073877.

Full text

Abstract:

It has been widely accepted worldwide, that the greenhouse effect is by far the most challenging threat in the new century. Renewable energy has been adopted to prevent excessive greenhouse effects, and to enhance sustainable development. Malaysia has a large amount of biomass residue, which provides the country with the much needed support the foreseeable future. This investigation aims to analyze potentials biomass gases from major biomass residues in Malaysia. The potential biomass gasses can be obtained using biomass conversion technologies, including biological and thermo-chemical technologies. The thermo-chemical conversion technology includes four major biomass conversion technologies such as gasification, combustion, pyrolysis, and liquefaction. Biomass wastes can be attained through solid biomass technologies to obtain syngas which includes carbon monoxide, carbon dioxide, oxygen, hydrogen, and nitrogen. The formation of tar occurs during the main of biomass conversion reaction such as gasification and pyrolysis. The formation of tar hinders equipment or infrastructure from catalytic aspects, which will be applied to prevent the formation of tar. The emission, combustion, and produced gas reactions were investigated. It will help to contribute the potential challenges and strategies, due to sustainable biomass, to harness resources management systems in Malaysia to reduce the problem of biomass residues and waste.

APA, Harvard, Vancouver, ISO, and other styles

20

Januari, A. D., and H. Agustina. "Palm Oil Empty Fruit Bunches and The Implementation of Zero Waste and Renewable Energy Technologies." IOP Conference Series: Earth and Environmental Science 1034, no. 1 (June 1, 2022): 012004. http://dx.doi.org/10.1088/1755-1315/1034/1/012004.

Full text

Abstract:

Abstract Oil palm empty fruit bunches (EFB) are oil palm biomass that can be processed into organic amendments and energy sources. Currently, the methods to utilize these solid waste have become a concern because it is related to the implementation of the zero-waste concept. Therefore, this study aimed to evaluate the current management of EFB waste from palm oil mills based on the concept of zero waste and renewable energy. This study used secondary data analysis of palm oil mills, field interviews, and literature study to evaluate EFB waste management. The results showed that the ratio of EFB and CPO produced by palm oil mills was around 27:23. The average EFB produced by manufacturers is 3,558.8 tons/month. Most palm oil mills manage their EFB wastes using mulching treatment. This showed that palm oil mills in Indonesia have yet to implement the existing technologies that many researchers have developed. Composting and anaerobic digestion are the alternative treatments that can be implemented by palm oil mills since both can reduce the EFB waste and produce products that can be sold and reused. The government of Indonesia can encourage palm oil mills to shift their waste management from using mulching treatment to anaerobic digestion and composting treatment.

APA, Harvard, Vancouver, ISO, and other styles

21

Yuan, Xiangzhou, Nallapaneni Manoj Kumar, Boris Brigljević, Shuangjun Li, Shuai Deng, Manhee Byun, Boreum Lee, et al. "Sustainability-inspired upcycling of waste polyethylene terephthalate plastic into porous carbon for CO₂ capture." Green Chemistry 24, no. 4 (2022): 1494–504. http://dx.doi.org/10.1039/d1gc03600a.

Full text

Abstract:

Industrial-scale upcycling of waste polyethylene terephthalate (PET) plastic into porous carbon globally for CO2 capture was verified as a multifunctional alternative to conventional CO2 absorption and plastic waste management technologies.

APA, Harvard, Vancouver, ISO, and other styles

22

Coppola, Daniela, Maria Oliviero, Giovanni Andrea Vitale, Chiara Lauritano, Isabella D’Ambra, Salvatore Iannace, and Donatella de Pascale. "Marine Collagen from Alternative and Sustainable Sources: Extraction, Processing and Applications." Marine Drugs 18, no. 4 (April 15, 2020): 214. http://dx.doi.org/10.3390/md18040214.

Full text

Abstract:

Due to its unique properties, collagen is used in the growing fields of pharmaceutical and biomedical devices, as well as in the fields of nutraceuticals, cosmeceuticals, food and beverages. Collagen also represents a valid resource for bioplastics and biomaterials, to be used in the emerging health sectors. Recently, marine organisms have been considered as promising sources of collagen, because they do not harbor transmissible disease. In particular, fish biomass as well as by-catch organisms, such as undersized fish, jellyfish, sharks, starfish, and sponges, possess a very high collagen content. The use of discarded and underused biomass could contribute to the development of a sustainable process for collagen extraction, with a significantly reduced environmental impact. This addresses the European zero-waste strategy, which supports all three generally accepted goals of sustainability: sustainable economic well-being, environmental protection, and social well-being. A zero-waste strategy would use far fewer new raw materials and send no waste materials to landfills. In this review, we present an overview of the studies carried out on collagen obtained from by-catch organisms and fish wastes. Additionally, we discuss novel technologies based on thermoplastic processes that could be applied, likewise, as marine collagen treatment.

APA, Harvard, Vancouver, ISO, and other styles

23

Topal, Alexander, Iryna Holenko, and Luidmyla Haponych. "CLEAN UTILIZATION OF MUNICIPAL SOLID WASTES AND ALTERNATIVE FUELS DERIVED FROM IT." Environmental Problems 5, no. 4 (2020): 202–9. http://dx.doi.org/10.23939/ep2020.04.202.

Full text

Abstract:

For the municipal solid waste (MSW) to be used in a proper way, it is necessary to implement clean technologies capable of thermal treatment of MSW and RDF in order to produce heat and electricity while meeting current ecological requirements. Nowadays, a number of technologies for MSW/RDF thermal treating are being used worldwide. Among them, the most proven technologies, applicable for industrial introduction, have been considered while analyzing their advantages/ disadvantages accounting for local conditions of Ukraine.

APA, Harvard, Vancouver, ISO, and other styles

24

Shahid, Kanwal, Varsha Srivastava, and Mika Sillanpää. "Protein recovery as a resource from waste specifically via membrane technology—from waste to wonder." Environmental Science and Pollution Research 28, no. 8 (January 13, 2021): 10262–82. http://dx.doi.org/10.1007/s11356-020-12290-x.

Full text

Abstract:

AbstractEconomic growth and the rapid increase in the world population has led to a greater need for natural resources, which in turn, has put pressure on said resources along with the environment. Water, food, and energy, among other resources, pose a huge challenge. Numerous essential resources, including organic substances and valuable nutrients, can be found in wastewater, and these could be recovered with efficient technologies. Protein recovery from waste streams can provide an alternative resource that could be utilized as animal feed. Membrane separation, adsorption, and microbe-assisted protein recovery have been proposed as technologies that could be used for the aforementioned protein recovery. This present study focuses on the applicability of different technologies for protein recovery from different wastewaters. Membrane technology has been proven to be efficient for the effective concentration of proteins from waste sources. The main emphasis of the present short communication is to explore the possible strategies that could be utilized to recover or restore proteins from different wastewater sources. The presented study emphasizes the applicability of the recovery of proteins from various waste sources using membranes and the combination of the membrane process. Future research should focus on novel technologies that can help in the efficient extraction of these high-value compounds from wastes. Lastly, this short communication will evaluate the possibility of integrating membrane technology. This study will discuss the important proteins present in different industrial waste streams, such as those of potatoes, poultry, dairy, seafood and alfalfa, and the possible state of the art technologies for the recovery of these valuable proteins from the wastewater. Graphical abstract

APA, Harvard, Vancouver, ISO, and other styles

25

Krutoholova, Iryna, and Vyacheslav Braverman. "REPLACEMENT OF COAL AND GAS WITH ALTERNATIVE SOURCES OF ENERGY." Energy saving. Power engineering. Energy audit., no. 3-4(169-170) (September 21, 2022): 3–9. http://dx.doi.org/10.20998/2313-8890.2022.03.01.

Full text

Abstract:

The work shows that agricultural waste can be an inexhaustible cheap source for green, renewable energy sources such as biocoal, biogas, high-quality organic fertilizer – biochar. The urgency of the problem has increased even more due to the need to replace fossil energy resources (coal, gas, oil), which used to come from Russia. The possibility of using exothermic heat of the process of pyrolysis of agricultural waste makes this process economically more attractive and will contribute to its implementation. When using the proposed pyrolysis technologies, all types of carbon-containing agricultural waste can be considered as an unclaimed resource for the decarbonization of the entire energy sector of Ukraine.

APA, Harvard, Vancouver, ISO, and other styles

26

Petrovic, Goran, Milos Madic, Danijel Markovic, Predrag Milic, and Gordana Stefanovi. "Multiple criteria decision making of alternative fuels for waste collection vehicles in southeast region of Serbia." Thermal Science 20, suppl. 5 (2016): 1585–98. http://dx.doi.org/10.2298/tsci16s5585p.

Full text

Abstract:

In this paper multiple criteria decision making approach of alternative fuels for waste collection vehicles in southeast region of Serbia was presented. Eight alternative fuels and advanced vehicle technologies were ranked according to thirteen criteria, including financial, socio-technical, and environmental. Assessment of alternatives was performed by using the weighted aggregated sum product assessment method and results were verified using multi-objective optimization on the basis of ratio analysis method. Considered criteria were obtained from previous researches and by assessment of professional experts from manufacturing industries, public utility companies, and academics institutions. The analysis showed that both biodiesel fuels - derived from used cooking oil or from vegetable oils are the best alternative fuels for Serbian waste collection vehicles in this point of time. Compressed natural gas-powered vehicles were also ranked high in this analysis, but due to the lack of financial capability for their purchase (especially in southeast region of Serbia), their gradual introduction into the waste collection fleet was proposed.

APA, Harvard, Vancouver, ISO, and other styles

27

Xu, Juan, Shao Feng Sun, Kårehelge Karstensen, Da Hai Yan, and Zheng Peng. "Co-Processing Hazardous Waste in the Chinese Cement Industry - Status 2014." Applied Mechanics and Materials 768 (June 2015): 679–86. http://dx.doi.org/10.4028/www.scientific.net/amm.768.679.

Full text

Abstract:

As China develops its economy, hazardous waste generation is expected to increase rapidly. Recovery and recycling, i.e. co-processing of Alternative Fuels and Raw materials (AFRs) and treatment of hazardous waste in energy-and resource-intensive industries such as the cement industry seems to be an supplementary option to conventional technologies which can increase the overall waste management capacity in China significantly. With the largest cement production in the world, the industry can save significant amounts of non-renewable coal and raw materials by substitution with wastes which needs treatment. However, co-processing requires appropriate regulations and policies to support its development and safe and sound implementation.

APA, Harvard, Vancouver, ISO, and other styles

28

Дыганова, Roza Dyganova, Перес, Rikardo Peres, Фахреев, and N. Fahreev. "Technologies of Processing of Waste in Agro-Industrial Complex with theUse of Thermo-Drying and Thermo-Utilization." Safety in Technosphere 6, no. 2 (August 21, 2017): 62–68. http://dx.doi.org/10.12737/article_598d7b7ab4e638.62299324.

Full text

Abstract:

The authors analyzed three alternative technologies of conversion of waste of a poultry-farming complex with the use of thermodrying and thermo-utilization among which, the turbo technology is for the first time experimentally approved on the mobile industrial plant of the VOMM company (Italy). Comparative assessment is carried out both on passport data of technologies, and according to settlement data, including educated by quantity and time of drying of waste, amount of the evaporated moisture. Energy parameters of assessment are connected with fuel consumption, amount of the received heat energy when burning granules as alternative fuel.

APA, Harvard, Vancouver, ISO, and other styles

29

Dal Pozzo, Alessandro, Giacomo Antonioni, Daniele Guglielmi, Carlo Stramigioli, and Valerio Cozzani. "Comparison of alternative flue gas dry treatment technologies in waste-to-energy processes." Waste Management 51 (May 2016): 81–90. http://dx.doi.org/10.1016/j.wasman.2016.02.029.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Eşkin Uzun, Seniye, Volkan Enç, and Fatih Hoşoğlu. "Atık Kompozit İçecek Kartonları Geri Dönüşüm Yöntemleri /." Journal of History Culture and Art Research 1, no. 4 (January 5, 2013): 345. http://dx.doi.org/10.7596/taksad.v1i4.60.

Full text

Abstract:

Kağıt, plastik ve alüminyum malzeme katmanlarından oluşan kompozit kartonlar özellikle sıvı gıdaların muhafazası için tercih edilen bir ambalaj türüdür. İlk olarak süt için tasarlanan ve geliştirilen kompozit kartonlar, günümüzde sütün yanı sıra pek çok gıda ve içeceğin ambalajlanmasında yaygın olarak kullanılmaktadır. Kullanım sürecini tamamladıktan sonra atık halini alan kompozit içecek kartonlarının geri dönüşümünde ise ciddi sıkıntılar bulunmaktadır. Özellikle ülkemizde bu tür atıkların geri dönüşümünün sağlanması sınırlı olarak yapılmakta, bu atıkların büyük bir kısmı depolama alanlarına gönderilmektedir. Bu nedenle bu atıkların yönetimine yönelik öncelikli bilimsel çalışmaların yapılarak, uygun yönetim alternatiflerinin uygulamaya aktarılması ihtiyacı doğmuştur. Bu çalışmada, atık kompozit içecek kartonlarının değerlendirme yöntemleri ve süreçleri araştırılarak bu yöntemler sonucunda elde edilen ürünler ile kullanım alanlarının belirlenmesi amaçlanmıştır. Recycling Methods of Composite Beverage Carton Waste Composite cartons which consist of paper, plastic and aluminum, are used in packaging of drinks. However composite cartons are designed and developed for the milk packaging, now days it has been widely used in packaging of many food and drink. There are serious problems in recycling of composite cartons. Since recycling of packaging wastes is limited in Turkey, most of the packaging waste is been landfilled. Therefore, primarily there has been a need to scientific studies done about the management of packaging wastes and implementation of appropriate packaging waste management alternatives. In this study, detailed and technical data about recycling of composite beverage cartons has been obtained from the previous studies, printed - digital databases, company, Environmental Agency and web pages. The project about the Management of Packaging Wastes has been carried out in coordination with ISTAC Co. in 26 districts in İstanbul. Every step including public training to acceptance of packaging waste to recycling facility has been observed. Many analyses are done to determine the amount and character of waste. Technical reports are presented about the results of the technical visits to waste collecting-separation and recycling facilities. The data presented in the study is obtained from the project about Management of Packaging Wastes which is done between in 2005-2012. Wafer board production is the simplest and cheapest recycling method of packaging wastes where the separation of components cannot be done by handling. First step of recycling of packaging waste is the recovery of %75 paper by hidropulper method. An extra recovery process should be done for recycling of aluminum and plastic. Many technologies such as pyrolysis, gasification and plasma are been investigated as alternative recycling methods for recycling of packaging wastes. Since there have been some regulations regarding the certification of packaging waste management. Even the amount of the packaging waste is less than %1 of the solid waste, an assessment for packaging wastes has been vital. However recycling of packaging waste has started with wafer production by using simple physical processes, now days many complex methods are developed. Unfortunately none of the new Technologies has been used in Turkey. With the adaption of appropriate technologies to our country and new investments as a result of investigation of new Technologies will provide an economical benefit while reducing the environmental impact. This study aims to create awareness for composite packaging waste in following researches and studies

APA, Harvard, Vancouver, ISO, and other styles

31

Bhat, Sartaj Ahmad, Jaswinder Singh, and Adarsh Pal Vig. "Management of Sugar Industrial Wastes through Vermitechnology." International Letters of Natural Sciences 55 (June 2016): 35–43. http://dx.doi.org/10.18052/www.scipress.com/ilns.55.35.

Full text

Abstract:

The present paper discusses the role of earthworms in recycling of sugar industrial wastes. The wastes generated from sugar industry are pressmud, bagasse, bagasse fly ash, sugar cane trash, sugar beet mud, sugar beet pulp, molasses etc. These wastes when mixed with other organic substrates become ideal mixtures for growth of earthworms. These wastes if stored in open field’s causes contamination in the environment and may cause several diseases in public health. But the governments have been unable to tackle the menace of solid waste pollution due to dearth of appropriate technologies, finance and space. Therefore, environment friendly and cost effective technologies for nutrient recycling or remediation of wastes are being advocated as an alternative means for conserving and replenishing natural resources of the ecosystems. Vermicomposting is one such technology that synergises microbial degradation with earthworm’s activity for reducing, reusing and recycling waste materials in a shorter span of time. Earthworm technology can convert sugar industrial wastes into valuable fertilizing material. The final product (vermicompost) produced during the process of vermicomposting is nutrient rich organic fertilizer with plant available nutrients such as nitrogen, potassium, calcium and phosphorus. In the present study an attempt has been made to document the role of earthworms in reuse of sugar industry waste.

APA, Harvard, Vancouver, ISO, and other styles

32

Bhat, Sartaj Ahmad, Jaswinder Singh, and Adarsh Pal Vig. "Management of Sugar Industrial Wastes through Vermitechnology." International Letters of Natural Sciences 55 (June 3, 2016): 35–43. http://dx.doi.org/10.56431/p-jh3zmh.

Full text

Abstract:

The present paper discusses the role of earthworms in recycling of sugar industrial wastes. The wastes generated from sugar industry are pressmud, bagasse, bagasse fly ash, sugar cane trash, sugar beet mud, sugar beet pulp, molasses etc. These wastes when mixed with other organic substrates become ideal mixtures for growth of earthworms. These wastes if stored in open field’s causes contamination in the environment and may cause several diseases in public health. But the governments have been unable to tackle the menace of solid waste pollution due to dearth of appropriate technologies, finance and space. Therefore, environment friendly and cost effective technologies for nutrient recycling or remediation of wastes are being advocated as an alternative means for conserving and replenishing natural resources of the ecosystems. Vermicomposting is one such technology that synergises microbial degradation with earthworm’s activity for reducing, reusing and recycling waste materials in a shorter span of time. Earthworm technology can convert sugar industrial wastes into valuable fertilizing material. The final product (vermicompost) produced during the process of vermicomposting is nutrient rich organic fertilizer with plant available nutrients such as nitrogen, potassium, calcium and phosphorus. In the present study an attempt has been made to document the role of earthworms in reuse of sugar industry waste.

APA, Harvard, Vancouver, ISO, and other styles

33

Uyanık, Tayfun, Emir Ejder, Yasin Arslanoğlu, Yunus Yalman, Yacine Terriche, Chun-Lien Su, and Josep M. Guerrero. "Thermoelectric Generators as an Alternative Energy Source in Shipboard Microgrids." Energies 15, no. 12 (June 9, 2022): 4248. http://dx.doi.org/10.3390/en15124248.

Full text

Abstract:

In recent years, the usage potential of alternative energy sources has been gaining importance to increase the efficiency of ships within the scope of the obligations brought by international maritime regulations. The possibility of using alternative energy sources such as solar energy, wind energy, fuel cells, and waste heat recovery technologies on ships has been evaluated in the literature. Today, ships also have waste heat recovery systems as standard equipment for this purpose, and this method is suitable for thermoelectric generators that generate electricity from temperature differences on shipboards. This article aims to review the thermal technologies for the power generation of shipboards. By conducting a case study, an energy efficiency increase was obtained when functional areas were selected on a practical ship, and the effect of this efficiency increase on emissions was examined. As a result of the research, it was discovered that thermoelectric generators increased onboard energy efficiency and have significant potential for sustainability in the maritime sector.

APA, Harvard, Vancouver, ISO, and other styles

34

Shumilova, L., A. Khatkova, K. Razmakhnin, and V. Cherkasov. "Strategies for the rational and integrated use of mineral raw materials based on the best available technologies and life cycle assessment of mining waste." Transbaikal State University Journal 27, no. 4 (2021): 32–44. http://dx.doi.org/10.21209/2227-9245-2021-27-4-32-44.

Full text

Abstract:

The relevance is explained by the need to expand the functionality of the mining and environmental concept of waste-free production. The purpose of the study is to develop a new one Strategy for the rational and integrated use of mineral raw materials based on the best available technologies (BAT) and an assessment of the life cycle of mining waste. The object of research is the Best Available Technologies, BAT (Best Available Technologies) of mining enterprises. The subject of the study is the relationship of the basic principles of the selection of BAT from alternative technology options with the assessment of the life cycle of mining waste. Method and methodology of research – theoretical analysis, system analysis, development of flowcharts and the new one Strategies for rational and integrated use of mineral raw materials. Results and discussion: a multi-stage comparative analysis of waste management systems in the EU and in the Russian Federation was carried out, which showed that in Russia, for the effective functioning of this system, it is necessary to find and implement such management methods that will allow mining enterprises to interact with the biosphere with the least impact on the environment; it is established that the comparison of alternative versions of BAT is the most effective solution for ensuring an overall high level of environmental protection, saving material and energy resources, taking into account the economic feasibility of implementation. During the EIA, in order to select economically optimal BAT from alternative technology options, enterprises should perform a number of calculations according to the recommended methods and taking into account the nine principles of BAT. Conclusions: the life cycle assessment of mining waste should be integrated into a single management system; a new Strategy for the rational and integrated use of mineral raw materials has been developed based on the best available technologies and the life cycle assessment of mining waste, which allows for waste-free or low-waste production within the framework of the mining and environmental concept

APA, Harvard, Vancouver, ISO, and other styles

35

Byun, Jaewon, Oseok Kwon, Hoyoung Park, and Jeehoon Han. "Food waste valorization to green energy vehicles: sustainability assessment." Energy & Environmental Science 14, no. 7 (2021): 3651–63. http://dx.doi.org/10.1039/d1ee00850a.

Full text

Abstract:

Our work aims to identify critical factors that could become equally important in a coincident sustainability assessment of new green energy vehicle technologies with utilization of food waste as an alternative renewable resource to fossil fuels.

APA, Harvard, Vancouver, ISO, and other styles

36

Medina Jimenez, Ana Carolina, Reynaldo Palacios Bereche, and Silvia Nebra. "Three municipal solid waste gasification technologies analysis for electrical energy generation in Brazil." Waste Management & Research: The Journal for a Sustainable Circular Economy 37, no. 6 (April 15, 2019): 631–42. http://dx.doi.org/10.1177/0734242x19841126.

Full text

Abstract:

In Brazil, in 2016, 196,050 tonnes day-1 of municipal solid waste (MSW) were collected, which means a waste generation of 1.035 kg per capita per day. Only 59.1% of the waste has adequate destination in sanitary landfills, whereas the remaining 40.9% has inadequate destination in controlled landfills and open dumps (ABRELPE, 2018). Among all the states in the country, the State of São Paulo has the biggest per capita generation: 2.290 kg. Today, the only waste destination practiced in the country is deposition in landfills, but other possibilities can be considered. Among thermal treatment routes, the gasification of MSW is an interesting alternative to be studied, because of its versatility and relatively low emissions. The aim of this work is to evaluate the potential of electricity generation through MSW gasification in Santo André city, Brazil, comparing three waste gasification technologies: TPS Termiska Processer AB, Carbogas and Energos. These alternatives have operated commercially for a few years, and data are available. Specific characteristics of each technology were taken into account, such as the reactor type and fuel properties. For the electricity production scheme, two energy conversion systems were assumed: an internal combustion engine and a steam power cycle. From the process parameters adopted, the results showed that Carbogas technology, coupled to internal combustion engines, presents the highest efficiency of electricity generation (30%) and also the lowest cost of electrical energy produced (US$65.22 MWh-1) when Santo André’s gate fee is applied.

APA, Harvard, Vancouver, ISO, and other styles

37

Ana Caroline Neves dos Santos and Alex Álisson Bandeira Santos. "Technologies for Air Conditioning Powered by Alternative Energy Sources: A Brief Review." JOURNAL OF BIOENGINEERING, TECHNOLOGIES AND HEALTH 5, no. 3 (November 15, 2022): 196–201. http://dx.doi.org/10.34178/jbth.v5i3.227.

Full text

Abstract:

Air conditioning systems promote human comfort, representing an energy consumption of up to 30% in a building. Although electric chillers are still widely used for thermal comfort, absorption chillers are a promising alternative for air conditioning using renewable energy sources (solar energy, natural gas, waste heat, geothermal, and biomass). The search for efficient, economical, and ecological solutions becomes evident regarding these considerations. This article proposes a brief bibliographical review of chillers powered by alternative energy sources to electricity. Awareness of the application of alternative energy sources in these systems contributes to sustainable practice and energy matrix diversification.

APA, Harvard, Vancouver, ISO, and other styles

38

El Hage, Maria, Hiba N. Rajha, Zoulikha Maache-Rezzoug, Mohamed Koubaa, and Nicolas Louka. "Intensification of Bioethanol Production from Different Lignocellulosic Biomasses, Induced by Various Pretreatment Methods: An Updated Review." Energies 15, no. 19 (September 21, 2022): 6912. http://dx.doi.org/10.3390/en15196912.

Full text

Abstract:

While world energy demand has certainly decreased with the beginning of the COVID-19 pandemic in 2020, the need has been significantly on the rise since 2021, all as the world’s fossil fuel resources are depleting; it is widely accepted that these resources emit greenhouse gases (GHG), which are the leading cause for the climate crisis. The main contributors to global warming are manufacturing, energy, and agriculture. The agricultural sector is composed of diversified and potential mobilizable sources of waste which can become an attractive alternative to fossil fuels for energy production, and thus sequester and use carbon. Therefore, a paradigm shift towards more sustainable energy alternatives, efficient waste management, and new technologies is necessary. One good solution is the energetic valorization of lignocellulosic biomass (LCB) which can also originate from agricultural wastes. The biomass consists of cellulose, hemicellulose, and lignin, which are sources of fermentable sugars that can be used for bioethanol production. However, the recovery of sugars requires the pretreatment of LCB before enzymatic hydrolysis, due to its inaccessible molecular structure. Different pretreatment technologies, including acid and alkaline pretreatments for selected biomasses (such as hemp, rice straw, corn straw, sugarcane bagasse, and wheat straw) are discussed and compared. Therefore, this review highlights the potential of agricultural waste as a renewable resource for energy production.

APA, Harvard, Vancouver, ISO, and other styles

39

Dobrovszky, K., V. Csergő, and Ferenc Ronkay. "Alternative, New Method for Predicting Polymer Waste Stream Contents." Materials Science Forum 812 (February 2015): 247–52. http://dx.doi.org/10.4028/www.scientific.net/msf.812.247.

Full text

Abstract:

In order to achieve the desired polymer recycling standards, precise estimations are needed about the composition of the polymer waste streams. The technologies that are currently used for this purpose, such as the infrared spectroscopy and the pyrolysis are neither time nor energy efficient as the processes may take up to hours, moreover the results are usually concluded by only analyzing small fractions of the waste streams. Meanwhile, as the polymer consumption of the world is increasing, the recycling and recovery rates demanded by numerous laws and restrictions are getting higher as well. The aim of this paper is to introduce a new technology that utilizes centrifugal force to separate the different polymer components of a sample in a melted state, containing the most common polymers found in a regular waste stream. After the separation, using the calculation method that is described, the exact ratio of the different materials can be given as well. In order to show the possibilities hidden in this technology, two samples, containing PA/PS/PP and PET/PA/PS/PP respectively, were separated and analyzed. The promising results were verified using optical microscopy as well as Raman spectroscopy.

APA, Harvard, Vancouver, ISO, and other styles

40

Aki, Sudhir N. V. K., and Martin A. Abraham. "An economic evaluation of catalytic supercritical water oxidation: Comparison with alternative waste treatment technologies." Environmental Progress 17, no. 4 (1998): 246–55. http://dx.doi.org/10.1002/ep.670170415.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Ronda, Alicia, Pedro Haro, and Alberto Gómez-Barea. "Sustainability assessment of alternative waste-to-energy technologies for the management of sewage sludge." Waste Management 159 (March 2023): 52–62. http://dx.doi.org/10.1016/j.wasman.2023.01.025.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Zabaniotou, Anastasia, and Vicky Skoulou. "Application of pilot technologies for energy utilization of agricultural residues in Northern Greece." Thermal Science 11, no. 3 (2007): 125–34. http://dx.doi.org/10.2298/tsci0703125z.

Full text

Abstract:

The enormous potential of agro biomass can be exploited to produce sustainable bioenergy. Proper management and further exploitation of this potential could lead to economically profitable approximations and solutions for the agricultural industry and even energy production industry. Gasification in-situ with energy production or pyrolysis of the above mentioned residues, under a non-oxidizing atmosphere for alternative fuels production could be a solution to the environmental problems that land filling or conventional combustion could create. The present work focuses on combustion and pyrolysis of cotton gin residues in Greece, as an alternative way of energy production. The purpose of presentation of a case study of the two alternatives methods (combustion and gasification or pyrolysis), by using cotton ginning waste as biofuel, is to show the appropriateness of new bioenergy sources by coupling them with energy production technologies. These technologies can be applied in northern Greece as well as in other Balkan or Mediterranean countries. .

APA, Harvard, Vancouver, ISO, and other styles

43

Gowman, Alison C., Maisyn C. Picard, Loong-Tak Lim, Manjusri Misra, and Amar K. Mohanty. "Fruit waste valorization for biodegradable biocomposite applications: A review." BioResources 14, no. 4 (October 7, 2019): 10047–92. http://dx.doi.org/10.15376/biores.14.4.gowman.

Full text

Abstract:

Currently, food waste is a major concern for companies, governments, and consumers. One of the largest sources of food waste occurs during industrial processing, where substantial by-products are generated. Fruit processing creates a lot of these by-products, from undesirable or “ugly fruit,” to the skins, seeds, and fleshy parts of the fruits. These by-products compose up to 30% of the initial mass of fruit processed. Millions of tons of fruit wastes are generated globally from spoilage and industrial by-products, so it is essential to find alternative uses for fruit wastes to increase their value. This goal can be accomplished by processing fruit waste into fillers and incorporating them into polymeric materials. This review summarizes recent developments in technologies to incorporate fruit wastes from sources such as grape, apple, olive, banana, coconut, pineapple, and others into polymer matrices to create green composites or films. Various surface treatments of biofillers/fibers are also discussed; these treatments increase the adhesion and applicability of the fillers with various bioplastics. Lastly, a comprehensive review of sustainable and biodegradable biocomposites is presented.

APA, Harvard, Vancouver, ISO, and other styles

44

Tun, Maw Maw, Petr Palacky, Dagmar Juchelkova, and Vladislav Síťař. "Renewable Waste-to-Energy in Southeast Asia: Status, Challenges, Opportunities, and Selection of Waste-to-Energy Technologies." Applied Sciences 10, no. 20 (October 19, 2020): 7312. http://dx.doi.org/10.3390/app10207312.

Full text

Abstract:

Rapid urban population growth that boosts increased waste generation and electricity demand has led to a possible alternative waste-to-energy solution in Southeast Asia. Despite some issues related to the development of the waste-to-energy sector such as public perception, all stakeholder involvement, public–private partnerships, funding, and climate factors, some Southeast Asian countries have made a reasonably successful step toward the developed technologies. Therefore, this study aimed to highlight an overview of the waste-to-energy sector in Southeast Asian countries to specify the status, challenges, opportunities, and selection of the technologies suited for the specific country. In order to achieve this aim, the study collected, synthesized, and evaluated data about waste resources, current waste management, waste-to-energy utilization, and its potential in the region based on published research papers and policy reports. It was found that the major waste-to-energy technologies in the region are incineration, landfills with gas capture, and anaerobic digestion. The total quantity of the waste-to-energy capacity from landfill biogas plants, incineration plants, and other waste-to-energy practices in the region accounts for over 323 MW at present and is expected to grow to double its current size by 2022. Meanwhile, by 2030, the realizable generation potential from renewable municipal waste in six Southeast Asian countries (Indonesia, Malaysia, Philippines, Singapore, Thailand, and Vietnam) amounts to 17.26 terawatt-hours (TWh). The study also specifies the requirements and considerations for the selection of waste-to-energy technologies, as well as the dimensions related to the development of the technologies. Additionally, four major aspects—technical, financial, environmental, and social and political—regarding the challenges and opportunities for the development of these technologies are considered. The challenges and opportunities related to the development of waste-to-energy in the region reveal how to overcome the drawbacks and to grasp the benefits at present and in the near future. Finally, the study is concluded with suggestions for the selection of the technologies in the region.

APA, Harvard, Vancouver, ISO, and other styles

45

Vertès, Alain A., Masayuki Inui, and Hideaki Yukawa. "Alternative technologies for biotechnological fuel ethanol manufacturing." Journal of Chemical Technology & Biotechnology 82, no. 8 (2007): 693–97. http://dx.doi.org/10.1002/jctb.1743.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Selvaraj, Siddharthan, Somasundaram Prasadh, Shivkanya Fuloria, Vetriselvan Subramaniyan, Mahendran Sekar, Abdelmoty M. Ahmed, Belgacem Bouallegue, et al. "COVID-19 Biomedical Plastics Wastes—Challenges and Strategies for Curbing the Environmental Disaster." Sustainability 14, no. 11 (May 25, 2022): 6466. http://dx.doi.org/10.3390/su14116466.

Full text

Abstract:

The rise of the COVID-19 outbreak has made handling plastic waste much more difficult. Our superior, hyper-hygienic way of life has changed our behavioural patterns, such as the use of PPE (Personal Protective Equipment), the increased desire for plastic-packaged food and commodities, and the use of disposable utensils, as a result of the fear of transmission. The constraints and inefficiencies of our current waste management system, in dealing with our growing reliance on plastic, could worsen its mismanagement and leakage into the environment, causing a new environmental crisis. A sustainable, systemic, and hierarchical plastic management plan, which clearly outlines the respective responsibilities as well as the socioeconomic and environmental implications of these actions, is required to tackle the problem of plastic pollution. It will necessitate action strategies tailored to individual types of plastic waste and country demand, as well as increased support from policymakers and the general public. The situation of biomedical plastic wastes during the COVID-19 epidemic is alarming. In addition, treatment of plastic waste, sterilisation, incineration, and alternative technologies for transforming bio-plastic waste into value-added products were discussed, elaborately. Our review would help to promote sustainable technologies to manage plastic waste, which can only be achieved with a change in behaviour among individuals and society, which might help to safeguard against going from one disaster to another in the coming days.

APA, Harvard, Vancouver, ISO, and other styles

47

Nelson, Gary, and Jim Renshaw. "Alternative pretreatment technologies for steel and aluminum surfaces." Metal Finishing 107, no. 5 (May 2009): 43–44. http://dx.doi.org/10.1016/s0026-0576(09)80104-9.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Porto, Valdênia Souza, A. M. B. de Araújo, M. S. L. Cavalcanti, and C. R. S. Morais. "Physical-Mechanical Characteristics in Masses for White Ceramics Obtained with Flat Glass Waste." Materials Science Forum 775-776 (January 2014): 619–24. http://dx.doi.org/10.4028/www.scientific.net/msf.775-776.619.

Full text

Abstract:

The production of urban solid wastes has grown surprisingly in last years, turning into one of biggest challenges for the contemporary society. Among these wastes, the glass waste can be highlighted bearing in mind that, for being totally returned to the productive chain without any loss of mass in the material, it has been receiving several incentives to help on development of alternative and green technologies which aim an adequate destination to this kind of material. Thereby, this research proposes the use of the flat glass waste like a flux, in a partial replacement to the feldspar, in the composition of masses for white ceramics, aiming to obtain products with physical-mechanical similar properties to the industrial products. To do this study, standard specimens were initially prepared, each one with different percentages of glass, to then be burned under temperatures between 1200 and 1250 degree Celsius. Later, the following tests were made: flaring color, linear retraction, apparent porosity and rupture module to flexion in three points, according to the ABNT/NBR 15097/2004 rules. The obtained values were compared with the suggested values for industrial masses, confirming the possibility to apply flat glass waste like a flux in masses to white ceramics, as an alternative to reuse of these materials.

APA, Harvard, Vancouver, ISO, and other styles

49

Afrane, Sandylove, Jeffrey Dankwa Ampah, Ephraim Bonah Agyekum, Prince Oppong Amoh, Abdulfatah Abdu Yusuf, Islam Md Rizwanul Fattah, Ebenezer Agbozo, et al. "Integrated AHP-TOPSIS under a Fuzzy Environment for the Selection of Waste-To-Energy Technologies in Ghana: A Performance Analysis and Socio-Enviro-Economic Feasibility Study." International Journal of Environmental Research and Public Health 19, no. 14 (July 10, 2022): 8428. http://dx.doi.org/10.3390/ijerph19148428.

Full text

Abstract:

Energy recovery from waste presents a promising alternative for several countries, including Ghana, which has struggled with unsustainable waste treatment methods and an inadequate power supply for several decades. The current study adopts a comprehensive multi-criteria decision-making approach for the selection of an optimal waste-to-energy (WtE) technology for implementation in Ghana. Four WtE technologies are evaluated against twelve selection criteria. An integrated AHP-fuzzy TOPSIS method is applied to estimate the criteria’s weights and rank the WtE alternatives. From the AHP results, technical criteria obtained the highest priority weight, while social criteria emerged as the least important in the selection process. The overall ranking order of WtE technologies obtained by fuzzy TOPSIS is as follows: anaerobic digestion > gasification > pyrolysis > plasma gasification. The sensitivity analysis indicates highly consistent and sturdy results regarding the optimal selection. This study recommends adopting a hybrid system of anaerobic digestion and gasification technologies, as this offers a well-balanced system under all of the evaluation criteria compared to the standalone systems. The results of the current study may help the government of Ghana and other prospective investors select a suitable WtE technology, and could serve as an index system for future WtE research in Ghana.

APA, Harvard, Vancouver, ISO, and other styles

50

Grosse, Douglas W. "Treatment Technologies For Hazardous Wastes: Part IV A Review of Alternative Treatment Processes for Metal Bearing Hazardous Waste Streams." Journal of the Air Pollution Control Association 36, no. 5 (May 1986): 603–14. http://dx.doi.org/10.1080/00022470.1986.10466099.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Journal articles on the topic 'Alternative waste technologies'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles