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Comparing the achievement and attitude of students using a supplemental, web-based, learning tool for municipal solid waste managementGajewski, Kacey Anne 01 July 2002 (has links)
No description available.
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Evaluation of the strategic sewage disposal scheme for Hong KongLau, Chor-to., 劉楚濤. January 1994 (has links)
published_or_final_version / Environmental Management / Master / Master of Science in Environmental Management
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Oceanic treatment: is this the only wayout?Ip, Ho-yin, Nelson., 葉浩然. January 2001 (has links)
published_or_final_version / Environmental Management / Master / Master of Science in Environmental Management
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Review on construction and demolition material management in HongKongChan, See Yan., 陳詩恩. January 2001 (has links)
published_or_final_version / Environmental Management / Master / Master of Science in Environmental Management
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Municipal waste management in Shanghai, 1866-1949Tong, Cheuk-kei., 唐卓姬. January 2009 (has links)
published_or_final_version / Humanities / Master / Master of Philosophy
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The technological economics of collection and landfill disposal of municipal waste in the United KingdomRushbrook, Philip Edward January 1984 (has links)
Accurate and detailed costs for individual municipal waste collection, treatment and landfill methods are not readily available. Neither is there a reliable means of comparing between two or more alternative options. However, before improvements to the management and planning of solid waste disposal can be achieved both are required. Currently, comparisons and planning in this field are highly ambiguous, often misleading, with individual operators using widely different accounting conventions and operating standards. The purpose of this work has been to establish accurate comparisons. Initially, detailed financial and technical information \'las collected from numerous operators, and then a standard basis for comparison (the "base case") was derived onto which the costs obtained were adjusted. Cost functions were also generated to interpret component costs fora range of sizes of operation. The economics of five collection methods, four transfer methods, seven bulk transport vehicle types and several landfill disposal variations are considered. For each a detailed appraisal of the component capital and operating costs has been made so as to identify the largest expenditures. The effect of uncertainty on cost estimates was also emphasised and explicitly considered by sensitivity analyses on selected economic and physical parameters. These analyses have indicated those component costs which exert the most significant influence on the total costs, and as such should be the most closely monitored by a waste manager. One notable example is the sensitivity of total landfill costs to leachate treatment. Six case studies are also presented. These are designed to demonstrate the versatility of the cost models derived and also the method developed for unambiguous economic comparison. This research provides a large financial data base on all of the collection, transfer and landfill methods in common use in Britain. Use of this information and the principles for comparison put forward would enable waste managers to incorporate sound financial appraisals into both their operational and forward planning decisions. This should subsequently improve not only the quality of their decisions but ultimately the standard of service they offer too.
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THE TOXICITY OF SPENT PHOTOGRAPHIC SOLUTIONS AND OTHER SILVER COMPOUNDS AND THEIR MIGRATION IN SOIL.Kasunic, Claudine Ann. January 1982 (has links)
No description available.
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An investigation into the mechanical biological pretreatment of garden waste using forced aeration and it impact on carbon emissions reduction potential31 August 2010 (has links)
Disposal of garden waste is a major concern globally and particularly in a developing / Thesis (M.Sc.Eng.)-University of KwaZulu-Natal, Durban, 2009.
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Biodiversity of anaerobic cellulolytic bacteria in landfill sitesGoldstone, Loren January 2001 (has links)
Dissertation submitted in compliance with the requirements for the Master's Degree in Technology: Biotechnology, Technikon Natal, 2001. / Landfills play an important role in the removal of waste from the surroundings. There is a limit to the types of waste that can be recycled and the landfill becomes the final method of waste disposal. Because waste constitutes a wide variety of materials, the microbial consortia that develop within a landfill will be equally varied, depending on the type of waste deposited, the temperature of the landfill and moisture content of the waste. The metabolism of these microbial consortia can result in products that are either harmful or beneficial. In order to increase the pool of knowledge on landfill microbiology, it is important to study the various consortia that inhabit the landfill to determine the various microbial interactions that occur and subsequently to manipulate these interactions to enhance the benefits of a landfill site and reduce the harmful effects. In this research, an attempt was made to isolate anaerobic cellulolytic bacteria from a landfill site. Six waste samples, varying in age were obtained over a period of two years. Samples were excavated from a maximum depth of 4m. Samples are processed in anaerobic, phosphate buffer and cultivated in various pre-reduced anaerobic media and incubated under anaerobic conditions. Samples were also collected from other potential anaerobic sites namely, anaerobic sludge, decomposing bagasse, compost, manure, rumen and pond sediment. Results of degradation of the cellulose source (Whatman No. 1 filter paper) indicated that it was possible to cultivate cellulose-degrading microorganisms from the landfill. Zones of clearing around colonies, which would be indicative of cellulose degradation on solid media, were not obtained. Samples from the anaerobic sludge, compost and rumen showed degradation of cellulose in liquid media but not on solid media. It is concluded that the solid media used was unsuitable for the cultivation of anaerobic, cellulolytic bacteria or that the anaerobic conditions employed were not adequate to initiate the growth of the anaerobic cellulolytic bacteria. / M
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Characterizing the Municipal Solid Waste Stream in Denton, TexasBrady, Patricia D. 08 1900 (has links)
Forty-two commercially collected dumpsters from Dentons Municipal Solid Waste Stream were emptied, sorted and weighed to characterize the material types and make preliminary recycling policy recommendations. The general composition of Dentons solid waste stream was not significantly different from the composition of the nations solid waste stream. Fifty-eight percent of the observed waste stream was recyclable. Paper made up the largest portion of recyclable materials and the "grocery" source category had more paper than any of the other five categories. Based on these findings, an incrementally aggressive approach is recommended to reduce certain types of wastes observed in the waste stream. This would include a Pay-As-You-Throw Program followed by an Intermediate Processing Center that can be converted to a Materials Recovery Facility.
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