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Статті в журналах з теми "Waste etc"

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Anshakov, A. S., P. V. Domarov, A. I. Aliferov, and V. A. Faleev. "INVESTIGATION OF PLASMA-OHMIC ELECTRIC FURNACES FOR GASIFYING CARBONACEOUSE WASTES." Bulletin of Toraighyrov University. Energetics series, no. 2021.3 (September 11, 2021): 6–17. http://dx.doi.org/10.48081/ljwi2657.

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For the first time, the processes of reducing energy consumption of a plasma-ohmic electric furnace for the gasification of various carbon-containing wastes (municipal, biological, agricultural, and other organic wastes) were investigated. The effect of reducing the humidity, morphological composition of waste on energy consumption during plasma gasification of carbon-containing materials is shown. The possibility to exclude the process of preliminary drying from the production cycle of waste gasification has been revealed. In the modern world, one of the global trends in technology development is the continuous increase in the efficiency and environmental friendliness of carbon-containing waste management methods. The carbon-containing industrial waste includes: municipal (municipal solid waste (MSW)), agricultural (rice husk, etc.), industrial (wood waste, coal slimes, etc.) and biological (medical, biological sludge deposits (BIO) and etc.) Despite the different nature of this waste, they all consist of the same chemical elements: carbon, hydrogen, oxygen, nitrogen, chlorine, sulfur, ash (a complex of inorganic elements and compounds), water (moisture), but contain elements and compounds dangerous for the environment (pathogens, heavy metals, etc.). Gasification of carbon-containing wastes is a complex physico-chemical process with a large number of effects, a complete scientific explanation of which is far from completion.
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Bhatia, Shashi Kant. "Wastewater Based Microbial Biorefinery for Bioenergy Production." Sustainability 13, no. 16 (August 17, 2021): 9214. http://dx.doi.org/10.3390/su13169214.

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A continuous increase in global population is demanding more development and industrialization, which leads to the production of various waste such as municipal wastewater, agricultural waste, industrial waste, medical waste, electronic wastes, etc [...]
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Mia, MY, MA Ali, MA Rahman, L. Naznin, and MU Hossain. "Hospital Waste Management in Tangail Municipality." Journal of Environmental Science and Natural Resources 5, no. 1 (August 7, 2012): 121–27. http://dx.doi.org/10.3329/jesnr.v5i1.11566.

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An investigation was conducted on hospital waste management in Tangail Municipality and its impact on human health. Data was collected through questionnaire interview from local residents, superintendents, nurses, observation and secondary sources. The results revealed that wastes are collected every alternative day and though sometime in irregular basis. Hospital wastes causes different health hazards like bad smell, infestation of animals, diarrhoea, skin diseases etc. due to irregular collection, unsafe handling, disposal, storage, transportation and finally dumped with municipal wastes. For knowing health impacts, among 110 general respondents 63% was affected, and 50 respondents who were associated with medical waste handling including nurse, pickers, workers, etc. in which more than 90% were affected one or more diseases due to improper management and imposed of hospital wastes. Shortage of dustbin is common in every hospitals and clinics in Tangail Municipality. The study also revealed that 1000-1500kg wastes were generated per day in Tangail Municipal area in which 19.23% infectious and 80.77% noninfectious. DOI: http://dx.doi.org/10.3329/jesnr.v5i1.11566 J. Environ. Sci. & Natural Resources, 5(1): 121 - 127, 2012
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Shmidt, D. V., Bashar Issa, and V. Yu Timofeev. "Preparation a Scrap of the Electronic Enterprises and its Subsequent Processing." Solid State Phenomena 303 (May 2020): 79–88. http://dx.doi.org/10.4028/www.scientific.net/ssp.303.79.

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The processing conditions of the of electronic wastes are largely dependent on environmental standards and requirements. Modern technologies for processing electronic waste should meet the increased demand for metals as well as the requirements. Electronic wastes can be classified as hazardous materials, as household and industrial electrical devices, which contain components such as batteries, capacitors, cathode ray tubes, etc. Electronic waste can consist of a large number of components of various sizes, shapes and chemical composition. Some of them contain hazardous metals, including mercury, lead, cadmium. The presence of precious metals in electronic waste such as gold, silver, platinum, palladium, as well as non-ferrous metals (copper, nickel, zinc, tin, etc.) make it attractive for processing. In industry, both hydrometallurgical and pyrometallurgical methods are used to extract valuable metals from electronic waste. Applied technologies may have both advantages and disadvantages.
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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.

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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.
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Zia, Umer, Hira Iram, Hafiz Zeshan Haider, Faiza Ameen, Maria Abrar, and Muhammad Atif. "Review—Biowaste as a Source of Conductive Carbon." ECS Journal of Solid State Science and Technology 11, no. 2 (February 1, 2022): 021001. http://dx.doi.org/10.1149/2162-8777/ac4edb.

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Recycling trend has transformed the prerequisites of our cravings. Makeover of waste material into useful goods has become inevitable. Bio waste shares a major portion of waste materials, hence pursued for recycling. Activated carbon from bio waste has been reported remarkable in electrochemical performance (capacitance, charge density, charge-discharge ratio etc.). This survey of data has been compiled for different bio wastes as a source of activated carbons with conductive behavior.
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Sheheli, S. "Waste Disposal and Management System in Rural Areas of Mymensingh." Progressive Agriculture 18, no. 2 (March 9, 2014): 241–46. http://dx.doi.org/10.3329/pa.v18i2.18278.

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The study was conducted in rural areas of Mymensingh district during March to April 2007. Seventy two households were interviewed and respondents were grouped in three categories: low, medium and high income group to identify the respondent’s socio-economic condition, total waste production, processing, utilization and preservation methods of waste. The total organic waste production was unequally proportionate areas among low, medium and high income group. Waste generation was also depending on family size and family income. Smaller family generated less amount of waste while larger family generated huge wastes. High income contributes to generate more wastes. The characteristics such as family size and family income of the respondents had positive and significant relationships with their waste generation. Waste use as many purpose such as manure, fuel, landfill etc. A significant amount of waste generated from domestic animal, specially cowdung have been using as fuel purpose. Only 2.78% respondents used cowdung as compost in their crop field due to less number of domestic animals and scarcity of fuel wood. But 27.78% respondents were not used it for any of those purposes. Besides these ashes, kitchen waste, feed wastage etc. are used as manure and landfill purpose. Respondents had no systematic planning in all spheres of production, processing and utilization of organic waste. The respondents were disposing their solid waste at various times. As a result improper processing and preservation of wastes have been occurring serious air and water pollution.DOI: http://dx.doi.org/10.3329/pa.v18i2.18383 Progress. Agric. 18(2): 247 - 254, 2007
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Rovin, S. L., A. S. Kalinichenko, and L. E. Rovin. "The return of the dispersed metal waste into production." Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY), no. 1 (April 10, 2019): 45–48. http://dx.doi.org/10.21122/1683-6065-2019-1-45-48.

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The article presents an alternative method of recycling of dispersed metal waste, based on a continuous solid-liquid-phase process, implemented in rotary tilting furnaces (RTF). The new proposed method of recycling allows processing wastes with almost any composition and state from metal to oxide and multicomponent wastes (shavings, fine scrap, mill scale, aspiration dust, sludge, etc.). The wastes can be even contaminated with moisture, oil, and organic impurities. The method developed does not require preliminary preparation of the initial materials (cleaning, homogenization, pelletizing, etc.). The finished products are ingots (pigs) for subsequent processing aiming the particular chemical composition or cast alloys of certain brend.
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Quan, Ashley Thompson, and Fanny Li. "Hyperinflation of Vasopressors (Vasopressin, Norepinephrine, Ephedrine, etc)." Journal of Pharmacy Practice 31, no. 4 (June 24, 2018): 399–402. http://dx.doi.org/10.1177/0897190018770062.

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Purpose: Hyperinflation refers to the increasing cost of drugs which occurs due to continued drug shortages and rebranding. Hyperinflation has significant implications in increasing overall healthcare costs with reduced reimbursement, increased patient acuity, and an aging population, but published strategies to reduce costs and minimize waste are limited. Objective: To describe the hyperinflation and cost mitigation strategies of three vasopressor medications, vasopressin, epinephrine, and ephedrine. Conclusion: The steep increase in medications is expected to continue, and mitigation strategies to reduce waste and select the most cost effective therapy to offset the price increase is crucial for healthcare systems.
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Khan, MN Hasan. "Assessment of Municipal Solid Waste Management in Mymensingh City towards Sustainable and Profitable Waste Management." Journal of Science and Technology Research 3, no. 1 (November 30, 2022): 41–48. http://dx.doi.org/10.3329/jscitr.v3i1.62805.

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Waste generation is increasing with the increasing of population at Mymensingh city but the waste management practice of the Mymensingh city corporation is not well established. The present study was conducted to find out profitable opportunities for municipal solid waste (MSW) management of Mymensingh city. Both primary and secondary sources were used to collect data as fulfillment of the study. Twenty two different locations of 5 wards in the city were visited for collecting these data. In the city estimated amount of waste produce 150 tons/day where 40-50% biodegradable and 15-25% recyclable paper, plastic, glass, metal etc. Currently waste is not being collecting and disposing scientifically due to unavailability of facilities, thus creating environmental pollution as well as unable to earn profit. Resource recovery and recycling could be a good option to reduce waste and earn profit from recyclable materials such as plastic, paper, metal etc. Besides this composting could be useful to produce bio fertilizer and bio gas from biodegradable wastes. By selling bio-fertilizer and biogas city could also earn profit. Integrated waste management combination with reduce, recovery, recycling and composting would be better solution for managing waste in the city. J. of Sci. and Tech. Res. 3(1): 41-48, 2021
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Дисертації з теми "Waste etc"

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Wong, Tse-ki Kinny. "Optimal design of municipal solid waste recycling system in Hong Kong /." Hong Kong : University of Hong Kong, 1999. http://sunzi.lib.hku.hk/hkuto/record.jsp?B21301487.

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Lai, Kit-ying. "Campaigns for promoting waste reduction, reuse and recycling case studies in Japan, Singapore and Hong Kong /." Click to view the E-thesis via HKUTO, 2009. http://sunzi.lib.hku.hk/hkuto/record/B42555814.

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Wong, May-ling. "Recycling in Hong Kong : case study on "conserving the Central & Western District materials recycling scheme at Mid-Levels" /." Hong Kong : University of Hong Kong, 2002. http://sunzi.lib.hku.hk/hkuto/record.jsp?B25436156.

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Lau, Kin-wah. "Management, disposal and recycling of waste organic solvents in Hong Kong /." Hong Kong : University of Hong Kong, 1998. http://sunzi.lib.hku.hk/hkuto/record.jsp?B19945139.

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Bolan, Michael D. "European union vs. the United States : recycling policies and management /." Connect to resource online, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1243439695.

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Pekdur, Ömer Keçeci Emin Faruk. "Autonomous Solid Waste Separation System Design/." [s.l.]: [s.n.], 2006. http://library.iyte.edu.tr/tezlerengelli/master/makinamuh/T000522.pdf.

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Lai, Kit-ying, and 賴潔瑩. "Campaigns for promoting waste reduction, reuse and recycling: case studies in Japan, Singapore and HongKong." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2009. http://hub.hku.hk/bib/B42555814.

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Chrobog, Christian Karim. "Wasted: understanding the economic and social impact of food waste." reponame:Repositório Institucional do FGV, 2014. http://hdl.handle.net/10438/13325.

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Over one-third of global food production goes to waste while over 850million people are fighting chronic hunger. The United States is the world’s largest food waster. One third of America’s food with an economic value of US$161 billion is wasted and less than 7% is recycled. American food waste ends up in landfills creating powerful methane gas emissions. South Korea, on the other hand, has implemented the world’s strictest food waste laws, and today diverts 93% of wasted food away from landfills turning such waste into powerful economic opportunities. This Master Thesis investigates the reasons behind global food waste by comparing South Korea and the US. It explores what these two nations are doing to address their respective food waste problems, South Korea successfully, the US not. The paper looks at the two countries’ respective policies and national characteristics, which impact decision-making and recycling processes. The effort concludes that South Korea has embarked on a necessary paradigm shift turning food waste into powerful economic drivers leading to a sharp decline in food waste. In the US, food waste continues to be a major problem without a national strategy to remedy waste. Any effort in the US, while laudable, is sporadic and local, and hence the US misses out on possibly important economic growth opportunities.
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Kwok, Ying-pui. "Domestic municipal solid waste source separation in Hong Kong /." Hong Kong : University of Hong Kong, 1999. http://sunzi.lib.hku.hk/hkuto/record.jsp?B21301724.

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Collins, Gill. "Local government recycling : a South Australian perspective." Title page, contents and abstract only, 1989. http://web4.library.adelaide.edu.au/theses/09ENV/09envc712.pdf.

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Книги з теми "Waste etc"

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Venkateswaran, Sandhya. The wealth of waste: Waste pickers, solid wastes, and urban development. New Delhi: Friedrich-Ebert Stiftung, 1995.

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Whittaker, Helen. Waste. New York: Marshall Cavendish Benchmark, 2012.

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Waste to energy. Ann Arbor, Mich: Cherry Lake Pub., 2009.

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Cross, Frank L. Infectious waste management. Lancaster, Pa., U.S.A: Technomic Publishing Co., 1990.

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Agency, Ireland Environmental Protection. Waste prevention: Solving the growing waste problem. Ardcavan: Environmental Protection Agency, 1995.

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Kumar, Sunil. Integrated waste management. Rijeka, Croatia: INTECH, 2014.

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H, Christensen Thomas, Cossu Raffaello, and Stegmann Rainer, eds. Landfilling of waste. London: Spon, 1992.

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Recycling waste. Tarrytown, NY: Marshall Cavendish Benchmark, 2008.

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Wendy, Oldfield, ed. Waste. Austin, Tex: Steck-Vaughn Library, 1992.

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Household waste recycling. 2nd ed. London: Earthscan, 2009.

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Частини книг з теми "Waste etc"

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Singh, Devendra, Neelam Geat, Motilal Mehriya, Mahendra Vikram Singh Rajawat, Radha Prasanna, Ashutosh Kumar, Geeta Kumari, and Manindra Nath Jha. "Omics (Genomics, Proteomics, Metabolomics, Etc.) Tools to Study the Environmental Microbiome and Bioremediation." In Waste to Energy: Prospects and Applications, 235–60. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-33-4347-4_10.

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Istrate, Ioan-Robert, José-Luis Gálvez-Martos, and Javier Dufour. "A Life Cycle-Based Scenario Analysis Framework for Municipal Solid Waste Management." In Towards a Sustainable Future - Life Cycle Management, 217–28. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-77127-0_20.

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AbstractA framework for the systematic analysis of the material flows and the life cycle environmental performance of municipal solid waste (MSW) management scenarios is described in this article. This framework is capable of predicting the response of waste treatment processes to the changes in waste streams composition that inevitably arise in MSW management systems. The fundamental idea is that the inputs (raw materials and energy) and outputs (final products, emissions, etc.) into/from treatment processes are previously allocated to the specific waste materials contained in the input waste stream. Aggregated indicators like life cycle environmental impacts can then be allocated to waste materials, allowing systematic scenario analyses. The framework is generic and flexible, and can easily be adapted to other types of assessments, such as economic analysis and optimization.
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Tóth, Miroslav. "Slovenské poľnohospodárstvo v kontexte trvalo udržateľnej spotreby a výroby." In Socio-economic Determinants of Sustainble Consumption and Production II, 147–54. Brno: Masaryk University Press, 2021. http://dx.doi.org/10.5817/cz.muni.p210-8640-2021-16.

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Sustainability and sustainable development have begun to take on significance, particularly in the context of the recognition that any uncontrolled growth (in population, production, consumption, pollution, etc.) is unsustainable in an environment of limited resources. Related to this is the concept of sustainable consumption and production. Agriculture is a sector of the national economy in which there is a significant consumption of natural resources, energy, water, land use, plant cultivation, animal husbandry and, of course, the involvement of the human factor. It is this sector that is sensitive to environmental changes, the impact of waste generation, the intensity of the use of production factors and changes in input and output prices.
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Margaret Popoola, Bukola. "Biodegradable Waste." In Recycling - Recent Advances [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.107910.

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Biodegradable wastes are waste materials easily degraded or broken down naturally by factors such as biotic (bacteria, fungi, plants, animals, etc.) and abiotic (pH, temperature, oxygen, humidity, etc.). This process enables complex substances to be broken down into simpler organic compounds which subsequently fade into the soil. This is a natural process that could be prolonged or rapid and poses little risks to the environment. These waste materials could be termed green waste; including food waste, paper waste, and biodegradable plastics such are found in municipal solid waste. Other examples of biodegradable wastes include sewage, manure, sewage sludge, human waste, waste from various slaughterhouses, hospital waste, dead animals, and plants. Biodegradable waste could be said to be recyclable or reused; furthermore, bio-waste recycling may also directly contribute to climate protection. They are generally known as useful waste. Recycling is one of the current waste management strategies having great benefits for the environment.
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Tammemagi, Hans. "Wastes: Know Your Enemy." In The Waste Crisis. Oxford University Press, 2000. http://dx.doi.org/10.1093/oso/9780195128987.003.0009.

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When Sherlock Holmes solves a mystery, he studies the strengths, weaknesses, foibles, egos, sensitivities, and other traits of the villains. It is the same with wastes: a detailed understanding of their characteristics is fundamental to being able to manage them properly. To determine the size of a disposal facility, we must know the volumes and rate of generation of waste. A MRF cannot be designed unless it is known what recyclables are contained in the waste stream. A knowledge of the physical and chemical nature of waste allows engineers to select landfill construction materials that will be compatible with the waste. We must understand the toxic and hazardous components in order to design the facility to endure for a period of time commensurate with the hazardous lifetime of the waste. Because of the incredibly large number of existing waste compounds, it is useful to categorize them. Unfortunately, there are no well-established categorization systems in place. We will describe wastes using two main classification systems, and then we will describe their most important characteristics. The first system is a functional one; that is, the wastes are classified by generator. The second is a classification by chemical type. This somewhat arbitrary system combines different kinds of waste primarily by the group or industry that generates the waste. These waste types include: • municipal wastes • industrial wastes • hazardous wastes • radioactive wastes This is a convenient classification because each of these waste classes is generally managed and disposed of as a group. In addition, substantial volumes of waste are generated by the mining and agricultural sectors; these are not discussed in this book. Municipal solid wastes, as the name implies, are produced by the everyday activities in a community. They arise from the following sources: • residential—houses and apartments • commercial—stores, restaurants, office buildings, service stations, etc. • institutional—schools, courthouses, hospitals, etc. • construction and demolition—construction sites, road repair, building demolition, etc. • municipal services—street-cleaning, garden and park landscaping, wastewater treatment, etc. We are a wasteful society. Every person in North America generates approximately 2 kilograms of garbage each day.
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Rai, Alok, Richa Kothari, and D. P. Singh. "Assessment of Available Technologies for Hospital Waste Management." In Waste Management, 860–76. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-1210-4.ch039.

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Modern hospital practices with galloping growth in medical technology facilitate increase human life span, decrease mortality rate and increase natality rate. Life supporting health services generates potentially hazardous and infectious hospital wastes like pharmaceuticals, cottons, food, paper, plastics, radionuclide, sharps, and anatomical parts etc. These wastes are complex in nature with maximum part of municipal solid waste and small part of biomedical waste (anatomical parts, body parts etc.). Improper conduct and management of hospital waste create several problems and nosocomial diseases to human beings and harms environment. Traditional practices included for management are open burning, mixing waste, liquid discharge and waste disposal without treatment normally. Hence, this issue comes in lime light and several guidelines come to sort out this problem. Thus, challenges associated with traditional hospital waste management techniques and modern techniques for management are assessed in general and association with human society in particular in this chapter.
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Naikare, Shriram M. "Utilization and Management of Food Waste." In Research Anthology on Food Waste Reduction and Alternative Diets for Food and Nutrition Security, 558–77. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-5354-1.ch028.

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The food industry generates a huge amount of waste annually around the globe from a variety of sources. Approximately one third of all food produced today goes to landfill as waste. The food waste is not only a humanitarian problem, but also a serious economic and environmental pollution problem. The global volume of food wastage has been reported to around 1.3bn tones worth to about $165 bn. In India, about 40% of the food produced is wasted, which is estimated to about Rs. 50,000 crores worth every year. The important types of food wastes generated are agricultural residue, processed food, fruit and vegetable processing, marine food, dairy processing, meat and poultry, hotel and restaurant, etc. The food industrial waste can be converted into byproducts mainly based on the processing of fruits and vegetables and allied food manufacturing, supply and distribution, livestock feed, using it as source of bioactive compounds, useful bioenergy production, artificial fertilizer and decomposed manure, a variety of chemicals, antioxidant, nutraceuticals, etc.
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Naikare, Shriram M. "Utilization and Management of Food Waste." In Advances in Environmental Engineering and Green Technologies, 165–90. IGI Global, 2019. http://dx.doi.org/10.4018/978-1-5225-7706-5.ch009.

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Анотація:
The food industry generates a huge amount of waste annually around the globe from a variety of sources. Approximately one third of all food produced today goes to landfill as waste. The food waste is not only a humanitarian problem, but also a serious economic and environmental pollution problem. The global volume of food wastage has been reported to around 1.3bn tones worth to about $165 bn. In India, about 40% of the food produced is wasted, which is estimated to about Rs. 50,000 crores worth every year. The important types of food wastes generated are agricultural residue, processed food, fruit and vegetable processing, marine food, dairy processing, meat and poultry, hotel and restaurant, etc. The food industrial waste can be converted into byproducts mainly based on the processing of fruits and vegetables and allied food manufacturing, supply and distribution, livestock feed, using it as source of bioactive compounds, useful bioenergy production, artificial fertilizer and decomposed manure, a variety of chemicals, antioxidant, nutraceuticals, etc.
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Patra, Manabendra, and Duryodhan Sahu. "Perspective Chapter: Environmental-Friendly Agro Waste Management." In Solid Waste Management - Recent Advances [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.107505.

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Abundant amount of agro wastes is produced day by day globally to manage the escalating needs of billons of human population. The agro wastes are produced from various sources mainly crops left out, agro industries, aquaculture, and livestock. The major ingredient of agro wastes are of cellulose, lignin, hemicelluloses, etc. Conventionally, most of the crops left out were used for composting, animal fodder, domestic fuel, etc. Due to modernization technology in agriculture sector, people from Third World countries prefer cost-effective methods such as combustion process. Improper management of agro waste generated in the process has been contributing toward escalating air, soil, and water pollution. A proper environmental-friendly management of agro waste is the need of the time for sustainability, food, and health security of human. Lignin and hemicellulose can be used for generation of biofuels and biofertilizer. Cellulose can be sustainably used for the production of nanosilica, biodegradable polymer, paper, pulp, etc. This chapter emphasizes sustainable agro waste management without affecting the environment at lower cost in timely manner. In particular, the agro waste biomass could be used as a source of value-added bio-product, which has wide applications and impacts the bio-economy without hampering the climatic change issue.
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Rai, Alok, Richa Kothari, and D. P. Singh. "Assessment of Available Technologies for Hospital Waste Management." In Sustainable Infrastructure, 791–807. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-0948-7.ch037.

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Modern hospital practices with galloping growth in medical technology facilitate increase human life span, decrease mortality rate and increase natality rate. Life supporting health services generates potentially hazardous and infectious hospital wastes like pharmaceuticals, cottons, food, paper, plastics, radionuclide, sharps, and anatomical parts etc. These wastes are complex in nature with maximum part of municipal solid waste and small part of biomedical waste (anatomical parts, body parts etc.). Improper conduct and management of hospital waste create several problems and nosocomial diseases to human beings and harms environment. Traditional practices included for management are open burning, mixing waste, liquid discharge and waste disposal without treatment normally. Hence, this issue comes in lime light and several guidelines come to sort out this problem. Thus, challenges associated with traditional hospital waste management techniques and modern techniques for management are assessed in general and association with human society in particular in this chapter.
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Тези доповідей конференцій з теми "Waste etc"

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Ozbiltekin-Pala, Melisa, and Gülmüş Börühan. "INVESTIGATION OF PLATE WASTE IN UNIVERSITY REFECTO." In Sixth International Scientific-Business Conference LIMEN Leadership, Innovation, Management and Economics: Integrated Politics of Research. Association of Economists and Managers of the Balkans, Belgrade, Serbia, 2020. http://dx.doi.org/10.31410/limen.2020.379.

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Food waste is a crucial global problem in the world. It is also a crucial issue for food services, consumers etc. Food is wasted throughout the entire food chain. At the consumer level, 35 percent of wasted food occurs. One of the main causes of food waste at consumer level is determined as “plate waste”. Although, the issue needs sustainable solutions to decrease food waste, there is no permanent solutions in mass consumption places about food waste such as refectories, cafeterias. The aim of the study is to analyse the amount of plate waste in Yaşar University (YU) refectories in İzmir by observation method and to find ways of minimizing food waste in YU, providing sustainability and contributing to the development of circular economy and raising awareness about food waste problem. For this research, the food waste at the YU refectories in Izmir was analysed by observation method. For 1-week observation study, a total of 3883 trays were examined throughout the Main campus and T blocks. It is determined that the biggest percentage is the main course and more than 50 percent of trays consist of waste in YU refectories.
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Arsene, Carmen, and Dumitru Negoiu. "Conditioning of Radioactive Waste Resulted From the Treatment of Liquid Waste From the Romanian Nuclear Power Plant." In ASME 2003 9th International Conference on Radioactive Waste Management and Environmental Remediation. ASMEDC, 2003. http://dx.doi.org/10.1115/icem2003-4717.

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For the conditioning of spent resins contaminated with radionuclides, such as: 137Cs, 134Cs, 60Co, 58Co, 57Co, 54Mn, etc., techniques of direct immobilization in cement, bitumen and organic polymers have been tested. The selected process was the bituminization using industrial bitumen, I 60–70, made in Romania, which had very good immobilizing characteristics. The paper presents stages of the research project, technical conditions for the process and advantages of the bituminization of spent resins.
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Korotkaya, Anna, Valeriya Dovgal', and Tamara Storodubtseva. "MATHEMATICAL MODELING OF WOOD COMPOSITE MATERIAL IN WOODWORKING INDUSTRY." In Ecological and resource-saving technologies in science and technology. FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov, 2022. http://dx.doi.org/10.34220/erstst2021_102-106.

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The possibility of solving the problem of using a huge amount of wood waste in the form of sawdust, chips, lump waste, chips, wood flour, etc., is the development of new polymer sandy composite materials with fillers from the listed wastes. Industrial waste in the form of secondary polymers can also be added. These can be bottles of polyethylene terephthalate, polyethylene bags and much more. Our goal was to study the relationship of components such as sand wood waste and polymer. To do this, it was necessary to develop an appropriate program - to create a mathematical model of a new wood polymer composite.
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Rodionov, A. "INSTALLATION OF MINE PYROLYSIS FOR PROCESSING ORGANIC WASTE." In Ecological and resource-saving technologies in science and technology. FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov, 2022. http://dx.doi.org/10.34220/erstst2021_179-181.

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For the processing of organic waste, a pyrolysis plant is proposed, which allows to obtain high-quality coal and pyrolysis liquid. Coal can be used for the production of adsorbent, as a reducing agent in non-ferrous metallurgy, etc. Various components can be extracted from the pyrolysis liquid or motor fuel can be produced.
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Plavnik, Gene. "HTI’s Novel Deposit Removal Technology: Impulse Deposit Removal System (Abstract)." In 13th Annual North American Waste-to-Energy Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/nawtec13-3144.

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Heat Technologies, Inc. develops thermal systems based on the most advanced thermal techniques: pulsating heating and combustion, infrared heating, staged combustion, combined combustion, etc.. HTI is involved in the design and manufacturing of a new generation of equipment that deploy these techniques for various commercial and industrial processes. The utilization of aforementioned methods allows us to create compact, cost efficient, low in maintenance, and simple in operation equipment.
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Mallants, Dirk, Ann Dierckx, Lian Wang, and Geert Volckaert. "Impact Assessment Analysis for Surface Storage of Radioactive Waste Addressing Radiotoxicity and Chemotoxicity: Application to an Existing Radium-Waste Surface Storage Facility." In ASME 2001 8th International Conference on Radioactive Waste Management and Environmental Remediation. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/icem2001-1235.

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Abstract Radioactive wastes often contain considerable amounts of non-radiological and potentially toxic components such as heavy metals, organics, etc. The present study discusses an impact assessment methodology applied to the surface repository located at Olen (Belgium) containing various wastes from radium and uranium production. The impact assessment considered leaching to groundwater and use of groundwater for production of drinking water and irrigation. Leaching of radionuclides and non-radiological components from the storage facility was calculated using numerical models of water flow and contaminant transport. Results showed that leaching from the waste forms containing the highest concentration in radium, uranium, lead, and arsenic (i.e., various uranium mill tailings and radium sources and needles) did not lead to unacceptable concentrations in the groundwater when a reasonable leaching period was considered.
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Trabold, Thomas A., Rajiv Ramchandra, Michael H. Haselkorn, and Anahita A. Williamson. "Analysis of Waste-to-Energy Opportunities in the New York State Food Processing Industry." In ASME 2011 5th International Conference on Energy Sustainability. ASMEDC, 2011. http://dx.doi.org/10.1115/es2011-54334.

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Many food processing plants in New York State generate large volume waste streams with a wide variety of physical and chemical properties. With greater environmental regulation and increasing fees for municipal sewer and solid waste disposal, additional innovative ‘disposal’ methods for these wastes need to be developed. One attractive alternative is to use the food processing waste as feedstock for a waste-to-energy conversion process comprising two distinct systems, namely waste-to-fuel and fuel-to-energy. The fuel can either be sold to generate revenue, or converted on-site to electrical or thermal energy to offset the plant power requirements. In this study, the technical viability and economic benefit of applying waste-to-energy solutions to a diverse selection of companies producing milk, cheese, beer, and tofu were assessed. Depending upon the volumes and composition of the available waste streams (including analysis of sugar content, biological oxygen demand, etc.) there may be a compelling business case to utilize the food waste as feedstock for ethanol, biodiesel or methane-rich biogas production.
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Caillard, Fred, and Francois Screve. "A New Non-Invasive Air-Cooled Condenser Monitoring Methodology to Increase Performance." In 13th Annual North American Waste-to-Energy Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/nawtec13-3166.

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Air-Cooled Condenser performance can significantly affect WTE plants bottom-line. Most of the possible ACC performance improvement solutions require some important capital costs (fin tubes replacement, fans blades or motor upgrade, additional ACC cells, addition of preventive air re-circulation panels, etc…). A new low cost tool and methodology is now allowing to gain a very detailed understanding of ACC behaviours and to optimize ACC operations and cleaning schedules. This article is illustrated by the case-study of a WTE located in the south of France (equipped with a 5.5 MW GE condensing turbine), where the facility performance was strongly limited by its ACC, and where additional turbine generator output of more than 1 MW were achieved.
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Epelbaum, Greg. "Simulation and Validation of a Mass Burn WTE Boiler Using CFD Modeling." In 12th Annual North American Waste-to-Energy Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/nawtec12-2205.

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American Ref-Fuel Company (ARC) spends millions of dollars each year on corrosion related costs in the boilers. The corrosion is caused by chloride salts in the slag that deposit on the boiler tubes, coupled with the high temperatures of flue gas going through the boiler. Corrosion rates are known to be very sensitive to the flue gas temperature and velocity, surface temperature and heat flux through the slag, oxygen in flue gas distribution, etc. These parameters are primarily determined by the firing rate of the boiler, and they are also affected by combustion control and air distribution in the boiler. Some design parameters, such as surface area of refractory, tile, and inconel overlay, also affect the flue gas temperature throughout the boiler, and thereby impact corrosion.
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Kulić Mandić, Aleksandra, Milena Bečelić-Tomin, Đurđa Kerkez, Gordana Pucar Milidrag, Vesna Pešić, and Miljana Prica. "A mini review: Optimal dye removal by fenton process catalysed with waste materials." In 10th International Symposium on Graphic Engineering and Design. University of Novi Sad, Faculty of technical sciences, Department of graphic engineering and design,, 2020. http://dx.doi.org/10.24867/grid-2020-p21.

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Large quantities of solid waste from different industries are commonly disposed in landfills, where can generate wide range of environmental problems. Therefore, the aim of this paper is to give insight on the usage of various waste materials as oxidation catalysts in different Fenton processes for dye removal. In that manner the circular value chain of these materials will be reinforced, obtaining disposal cost reduction and further value addition. Some of industrial wastes (fly ash, electric arc furnace dust, red mud, coal bottom ash, activated carbon from biomass, etc.) that have been used to catalyse Fenton reaction in various researches are reviewed from optimization point of view. Both types of optimization, one-factor-at-a-time (OFAT) and response surface methodology (RSM) are investigated. The study revealed that factors as catalyst concentration, pH value, hydrogen peroxide concentration, dye concentration and reaction time are main factors that influence final Fenton capacity as oxidation process catalysed with reviewed waste materials.
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Звіти організацій з теми "Waste etc"

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Rao, Nitya, Sheetal Patil, Maitreyi Koduganti, Chandni Singh, Ashwin Mahalingam, Prathijna Poonacha, and Nishant Singh. Sowing Sustainable Cities: Lessons for Urban Agriculture Practices in India. Indian Institute for Human Settlements, 2023. http://dx.doi.org/10.24943/ssc12.2022.

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Despite growing interest and recognition of urban and peri-urban agriculture (UPA) as a nature- based solution, there is limited empirical evidence in countries like India on its role in reconfiguring goals on environmental functions (such as biodiversity, waste management, water recycling, micro-climate regulation, etc.) and social wellbeing (such as food and nutrition security, gender relations, work burdens, land tenure and community ties). A need to address this gap led to the ideation of the project ‘Urban and peri-urban agriculture as green infrastructures’ ( UPAGrI ). When UPAGrI started in 2019, the research on UPA in India was thin but growing. However, the practical experience of urban farming across Indian cities is thriving and diverse, built on decades of bottom-up experimentation. Within the landscape of our ever-changing cities, we found vibrant communities-of-practice sharing seeds and knowledge, engaged online influencers discussing composting and water reuse, and stories of farming becoming sites of multi-generational bonding and nutritional security. This compendium is a collection of 29 such innovative UPA practices from across the different cities in the country. These diverse case studies are loosely categorized into four themes: environment and sustainability; food, nutrition and livelihood; gender and subjective well-being; and urban policy and planning. Written mostly by practitioners themselves, the case studies collectively recognise and celebrate UPA innovations and practices, serving as a repository of lessons for peer-to-peer learning, and demonstrating how UPA can be one of the many solutions towards sustainable, liveable Indian cities.
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Rao, Nitya. Sowing Sustainable Cities: Lessons for Urban Agriculture Practices in India. Indian Institute for Human Settlements, 2023. http://dx.doi.org/10.24943/ssc12.2023.

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Анотація:
Despite growing interest and recognition of urban and peri-urban agriculture (UPA) as a nature- based solution, there is limited empirical evidence in countries like India on its role in reconfiguring goals on environmental functions (such as biodiversity, waste management, water recycling, micro-climate regulation, etc.) and social wellbeing (such as food and nutrition security, gender relations, work burdens, land tenure and community ties). A need to address this gap led to the ideation of the project ‘Urban and peri-urban agriculture as green infrastructures’ ( UPAGrI ). When UPAGrI started in 2019, the research on UPA in India was thin but growing. However, the practical experience of urban farming across Indian cities is thriving and diverse, built on decades of bottom-up experimentation. Within the landscape of our ever-changing cities, we found vibrant communities-of-practice sharing seeds and knowledge, engaged online influencers discussing composting and water reuse, and stories of farming becoming sites of multi-generational bonding and nutritional security. This compendium is a collection of 29 such innovative UPA practices from across the different cities in the country. These diverse case studies are loosely categorized into four themes: environment and sustainability; food, nutrition and livelihood; gender and subjective well-being; and urban policy and planning. Written mostly by practitioners themselves, the case studies collectively recognise and celebrate UPA innovations and practices, serving as a repository of lessons for peer-to-peer learning, and demonstrating how UPA can be one of the many solutions towards sustainable, liveable Indian cities.
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COOKE, LOCKREM, AVILA, and KOCI. EFFLUENT TREATMENT FACILITY (ETF) WASTE STREAM STABILIZATION TESTING. Office of Scientific and Technical Information (OSTI), September 2005. http://dx.doi.org/10.2172/859142.

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MAY TH, GEHNER PD, STEGEN GARY, HYMAS JAY, PAJUNEN AL, SEXTON RICH, and RAMSEY AMY. SECONDARY WASTE/ETF (EFFLUENT TREATMENT FACILITY) PRELIMINARY PRE-CONCEPTUAL ENGINEERING STUDY. Office of Scientific and Technical Information (OSTI), December 2009. http://dx.doi.org/10.2172/969759.

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LUECK, K. J. ENGINEERING STUDY FOR THE 200 AREA EFFLUENT TREATMENT FACILITY (ETF) SECONDARY WASTE TREATMENT OF PROJECTED FUTURE WASTE FEEDS. Office of Scientific and Technical Information (OSTI), October 2004. http://dx.doi.org/10.2172/834436.

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Collard, L. B. Special Analysis: Disposal of ETF Activated Carbon Vessels in Slit Trenches at the E-Area Low-Level Waste Facility. Office of Scientific and Technical Information (OSTI), August 2003. http://dx.doi.org/10.2172/816012.

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Rezaie, Shogofa, Fedra Vanhuyse, Karin André, and Maryna Henrysson. Governing the circular economy: how urban policymakers can accelerate the agenda. Stockholm Environment Institute, September 2022. http://dx.doi.org/10.51414/sei2022.027.

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We believe the climate crisis will be resolved in cities. Today, while cities occupy only 2% of the Earth's surface, 57% of the world's population lives in cities, and by 2050, it will jump to 68% (UN, 2018). Currently, cities consume over 75% of natural resources, accumulate 50% of the global waste and emit up to 80% of greenhouse gases (Ellen MacArthur Foundation, 2017). Cities generate 70% of the global gross domestic product and are significant drivers of economic growth (UN-Habitat III, 2016). At the same time, cities sit on the frontline of natural disasters such as floods, storms and droughts (De Sherbinin et al., 2007; Major et al., 2011; Rockström et al., 2021). One of the sustainability pathways to reduce the environmental consequences of the current extract-make-dispose model (or the "linear economy") is a circular economy (CE) model. A CE is defined as "an economic system that is based on business models which replace the 'end-of-life' concept with reducing, alternatively reusing, recycling and recovering materials in production/distribution and consumption processes" (Kirchherr et al., 2017, p. 224). By redesigning production processes and thereby extending the lifespan of goods and materials, researchers suggest that CE approaches reduce waste and increase employment and resource security while sustaining business competitiveness (Korhonen et al., 2018; Niskanen et al., 2020; Stahel, 2012; Winans et al., 2017). Organizations such as the Ellen MacArthur Foundation and Circle Economy help steer businesses toward CE strategies. The CE is also a political priority in countries and municipalities globally. For instance, the CE Action Plan, launched by the European Commission in 2015 and reconfirmed in 2020, is a central pillar of the European Green Deal (European Commission, 2015, 2020). Additionally, more governments are implementing national CE strategies in China (Ellen MacArthur Foundation, 2018), Colombia (Government of the Republic of Colombia, 2019), Finland (Sitra, 2016), Sweden (Government Offices of Sweden, 2020) and the US (Metabolic, 2018, 2019), to name a few. Meanwhile, more cities worldwide are adopting CE models to achieve more resource-efficient urban management systems, thereby advancing their environmental ambitions (Petit-Boix & Leipold, 2018; Turcu & Gillie, 2020; Vanhuyse, Haddaway, et al., 2021). Cities with CE ambitions include, Amsterdam, Barcelona, Paris, Toronto, Peterborough (England) and Umeå (Sweden) (OECD, 2020a). In Europe, over 60 cities signed the European Circular Cities Declaration (2020) to harmonize the transition towards a CE in the region. In this policy brief, we provide insights into common challenges local governments face in implementing their CE plans and suggest recommendations for overcoming these. It aims to answer the question: How can the CE agenda be governed in cities? It is based on the results of the Urban Circularity Assessment Framework (UCAF) project, building on findings from 25 interviews, focus group discussions and workshops held with different stakeholder groups in Umeå, as well as research on Stockholm's urban circularity potential, including findings from 11 expert interviews (Rezaie, 2021). Our findings were complemented by the Circular Economy Lab project (Rezaie et al., 2022) and experiences from working with municipal governments in Sweden, Belgium, France and the UK, on CE and environmental and social sustainability.
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Minz, Dror, Stefan J. Green, Noa Sela, Yitzhak Hadar, Janet Jansson, and Steven Lindow. Soil and rhizosphere microbiome response to treated waste water irrigation. United States Department of Agriculture, January 2013. http://dx.doi.org/10.32747/2013.7598153.bard.

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Research objectives : Identify genetic potential and community structure of soil and rhizosphere microbial community structure as affected by treated wastewater (TWW) irrigation. This objective was achieved through the examination soil and rhizosphere microbial communities of plants irrigated with fresh water (FW) and TWW. Genomic DNA extracted from soil and rhizosphere samples (Minz laboratory) was processed for DNA-based shotgun metagenome sequencing (Green laboratory). High-throughput bioinformatics was performed to compare both taxonomic and functional gene (and pathway) differences between sample types (treatment and location). Identify metabolic pathways induced or repressed by TWW irrigation. To accomplish this objective, shotgun metatranscriptome (RNA-based) sequencing was performed. Expressed genes and pathways were compared to identify significantly differentially expressed features between rhizosphere communities of plants irrigated with FW and TWW. Identify microbial gene functions and pathways affected by TWW irrigation*. To accomplish this objective, we will perform a metaproteome comparison between rhizosphere communities of plants irrigated with FW and TWW and selected soil microbial activities. Integration and evaluation of microbial community function in relation to its structure and genetic potential, and to infer the in situ physiology and function of microbial communities in soil and rhizospere under FW and TWW irrigation regimes. This objective is ongoing due to the need for extensive bioinformatics analysis. As a result of the capabilities of the new PI, we have also been characterizing the transcriptome of the plant roots as affected by the TWW irrigation and comparing the function of the plants to that of the microbiome. *This original objective was not achieved in the course of this study due to technical issues, especially the need to replace the American PIs during the project. However, the fact we were able to analyze more than one plant system as a result of the abilities of the new American PI strengthened the power of the conclusions derived from studies for the 1ˢᵗ and 2ⁿᵈ objectives. Background: As the world population grows, more urban waste is discharged to the environment, and fresh water sources are being polluted. Developing and industrial countries are increasing the use of wastewater and treated wastewater (TWW) for agriculture practice, thus turning the waste product into a valuable resource. Wastewater supplies a year- round reliable source of nutrient-rich water. Despite continuing enhancements in TWW quality, TWW irrigation can still result in unexplained and undesirable effects on crops. In part, these undesirable effects may be attributed to, among other factors, to the effects of TWW on the plant microbiome. Previous studies, including our own, have presented the TWW effect on soil microbial activity and community composition. To the best of our knowledge, however, no comprehensive study yet has been conducted on the microbial population associated BARD Report - Project 4662 Page 2 of 16 BARD Report - Project 4662 Page 3 of 16 with plant roots irrigated with TWW – a critical information gap. In this work, we characterize the effect of TWW irrigation on root-associated microbial community structure and function by using the most innovative tools available in analyzing bacterial community- a combination of microbial marker gene amplicon sequencing, microbial shotunmetagenomics (DNA-based total community and gene content characterization), microbial metatranscriptomics (RNA-based total community and gene content characterization), and plant host transcriptome response. At the core of this research, a mesocosm experiment was conducted to study and characterize the effect of TWW irrigation on tomato and lettuce plants. A focus of this study was on the plant roots, their associated microbial communities, and on the functional activities of plant root-associated microbial communities. We have found that TWW irrigation changes both the soil and root microbial community composition, and that the shift in the plant root microbiome associated with different irrigation was as significant as the changes caused by the plant host or soil type. The change in microbial community structure was accompanied by changes in the microbial community-wide functional potential (i.e., gene content of the entire microbial community, as determined through shotgun metagenome sequencing). The relative abundance of many genes was significantly different in TWW irrigated root microbiome relative to FW-irrigated root microbial communities. For example, the relative abundance of genes encoding for transporters increased in TWW-irrigated roots increased relative to FW-irrigated roots. Similarly, the relative abundance of genes linked to potassium efflux, respiratory systems and nitrogen metabolism were elevated in TWW irrigated roots when compared to FW-irrigated roots. The increased relative abundance of denitrifying genes in TWW systems relative FW systems, suggests that TWW-irrigated roots are more anaerobic compare to FW irrigated root. These gene functional data are consistent with geochemical measurements made from these systems. Specifically, the TWW irrigated soils had higher pH, total organic compound (TOC), sodium, potassium and electric conductivity values in comparison to FW soils. Thus, the root microbiome genetic functional potential can be correlated with pH, TOC and EC values and these factors must take part in the shaping the root microbiome. The expressed functions, as found by the metatranscriptome analysis, revealed many genes that increase in TWW-irrigated plant root microbial population relative to those in the FW-irrigated plants. The most substantial (and significant) were sodium-proton antiporters and Na(+)-translocatingNADH-quinoneoxidoreductase (NQR). The latter protein uses the cell respiratory machinery to harness redox force and convert the energy for efflux of sodium. As the roots and their microbiomes are exposed to the same environmental conditions, it was previously hypothesized that understanding the soil and rhizospheremicrobiome response will shed light on natural processes in these niches. This study demonstrate how newly available tools can better define complex processes and their downstream consequences, such as irrigation with water from different qualities, and to identify primary cues sensed by the plant host irrigated with TWW. From an agricultural perspective, many common practices are complicated processes with many ‘moving parts’, and are hard to characterize and predict. Multiple edaphic and microbial factors are involved, and these can react to many environmental cues. These complex systems are in turn affected by plant growth and exudation, and associated features such as irrigation, fertilization and use of pesticides. However, the combination of shotgun metagenomics, microbial shotgun metatranscriptomics, plant transcriptomics, and physical measurement of soil characteristics provides a mechanism for integrating data from highly complex agricultural systems to eventually provide for plant physiological response prediction and monitoring. BARD Report
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D.G. Bennett, A.J. Hooper, S. Voinis, H. Umeki, A.V. Luik, and J. Alonso. The Role of the Engineered Barrier System in Safety Cases for Geological Radioactive Waste Repoitories: An NEA Initiaive in Co-Operations with the EC, Process Issues and Modeling. Office of Scientific and Technical Information (OSTI), February 2006. http://dx.doi.org/10.2172/893933.

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MacKinnon, R. J., T. M. Sullivan, S. A. Simonson, and C. J. Suen. BLT-EC (Breach, Leach Transport, and Equilibrium Chemistry), a finite-element model for assessing the release of radionuclides from low-level waste disposal units: Background, theory, and model description. Office of Scientific and Technical Information (OSTI), August 1995. http://dx.doi.org/10.2172/108216.

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