• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 3
  • Tagged with
  • 3
  • 2
  • 2
  • 2
  • 2
  • 2
  • 2
  • 2
  • 2
  • 2
  • 1
  • 1
  • 1
  • 1
  • 1
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Assessing the challenges and potential of implementing composting as part of a municipal solid waste management system in Baisha, Hainan, China

Ichim, Gloria January 2007 (has links)
China currently produces the largest quantity of municipal solid waste (MSW) in the world at 190, 000, 000 metric tones (World Bank 2005). China faces the continuing challenge of increased waste generation due to population growth, increased income, and increased urbanization. As part of environmental protection initiatives, the central government has issued many policy commitments at the national level to address waste management. In concurrence with the national objectives of addressing the problem of waste management, Hainan province has developed an integrated waste management plan that it hopes to implement by 2020 (The Hainan City Environment and Sanitary Association, in association with Hua Zhong University of Science and Technology of Environmental Science and Engineering, 2005). Organic waste, which accounts for a significant proportion of the waste stream in China, poses both challenges and opportunities in terms of disposal and recovery. While the final disposal of organics may present significant challenges, recovery of organic waste through composting is one alternative. Composting is widely recognized as an effective method of turning organic waste into a useful product. Nevertheless, the implementation of composting as part of a Municipal Solid Waste Management (MSWM) strategy faces challenges. Broadly, these challenges include administrative/policy, human acceptance and participation, management, technological and logistical, and marketing as well as composting process, source separation, contamination, quality of the final product, appropriate composting technologies and final demand and distribution of the final product (Schubeler et al. 1996, Hoornweg et al. 1999). This thesis uses a case study approach in implementing a composting pilot project in cooperation with the local and provincial government in Baisha Hainan China. Labor intensive, low technological, windrow composting is used so as to assess the challenges and potential of implementing composting as part of a municipal solid waste management strategy in Baisha Hainan China. The research uses a participatory action research approach incorporating research methods such as participant observation, key informant interviews (n=122), and rapid rural appraisals. The research objectives are to understand the current waste management system, understand how implementing composting affects the waste management system entails, understand the barriers to implementation, understand the implications: impact of implementation, potential, and finally to propose recommendations on how to implement composting. The research identified seven necessary key factors that if not given sufficient attention could potentially jeopardize the successful implementation and operation of composting: governmental support must be present, funds must be made available since operating cost of the waste management system will increase, best practices for composting must be established, training for waste workers must be provided, a market (or end use) for the final product must be established, NIMBY needs to be addressed, source separation should be applied.
2

Assessing the challenges and potential of implementing composting as part of a municipal solid waste management system in Baisha, Hainan, China

Ichim, Gloria January 2007 (has links)
China currently produces the largest quantity of municipal solid waste (MSW) in the world at 190, 000, 000 metric tones (World Bank 2005). China faces the continuing challenge of increased waste generation due to population growth, increased income, and increased urbanization. As part of environmental protection initiatives, the central government has issued many policy commitments at the national level to address waste management. In concurrence with the national objectives of addressing the problem of waste management, Hainan province has developed an integrated waste management plan that it hopes to implement by 2020 (The Hainan City Environment and Sanitary Association, in association with Hua Zhong University of Science and Technology of Environmental Science and Engineering, 2005). Organic waste, which accounts for a significant proportion of the waste stream in China, poses both challenges and opportunities in terms of disposal and recovery. While the final disposal of organics may present significant challenges, recovery of organic waste through composting is one alternative. Composting is widely recognized as an effective method of turning organic waste into a useful product. Nevertheless, the implementation of composting as part of a Municipal Solid Waste Management (MSWM) strategy faces challenges. Broadly, these challenges include administrative/policy, human acceptance and participation, management, technological and logistical, and marketing as well as composting process, source separation, contamination, quality of the final product, appropriate composting technologies and final demand and distribution of the final product (Schubeler et al. 1996, Hoornweg et al. 1999). This thesis uses a case study approach in implementing a composting pilot project in cooperation with the local and provincial government in Baisha Hainan China. Labor intensive, low technological, windrow composting is used so as to assess the challenges and potential of implementing composting as part of a municipal solid waste management strategy in Baisha Hainan China. The research uses a participatory action research approach incorporating research methods such as participant observation, key informant interviews (n=122), and rapid rural appraisals. The research objectives are to understand the current waste management system, understand how implementing composting affects the waste management system entails, understand the barriers to implementation, understand the implications: impact of implementation, potential, and finally to propose recommendations on how to implement composting. The research identified seven necessary key factors that if not given sufficient attention could potentially jeopardize the successful implementation and operation of composting: governmental support must be present, funds must be made available since operating cost of the waste management system will increase, best practices for composting must be established, training for waste workers must be provided, a market (or end use) for the final product must be established, NIMBY needs to be addressed, source separation should be applied.
3

Nest-site Selection and Hatching Success of Three Tern Species Breeding in Baisha Islet, Penghu Island, Taiwan

Lin, Yu-kai 03 September 2007 (has links)
Three tern species, Roseate Tern (Sterna dougalli), Bridled Tern (Sterna anaethetus) and Crested Tern (Sterna bergii) co-bred at Baisha islet, east-north of Penghu, in the summer of 2006. Each species favored different kind of environment for nesting. All Crested Terns nested in the flat plane with vegetation; Roseate Terns in the cliff near the vegetation, and Bridled Tern primarily nested near the vertical rock or under a rocky roof. The Crested Tern had the highest nesting density, and Bridled Tern nested loosely. The hatching success of Roseate (75%) and Crested Tern (73%) were significantly higher than that of Bridled Tern (30%). Roseate and Crested Tern laid eggs synchronously and had apparently two wave of egg laying and the breeding performances between early- and late-laying period were quite different. The relationship between hatching success and nest-site characteristics of the three species was investigated. The results revealed that hatching success of Roseate Tern increased with the number of walls and neighbors. Early-laying nests (79%) and central nests (72%) were more successful than late (11%) and edge nests (45%) of Roseate Terns. The laying-period was also important factors affecting hatching success of Crested Tern. Overall, the low hatching success of the late-laying nests may be due to the change of environmental conditions and the losing advantage of group breeding in the late season. The low hatching success of Bridled Tern was considered owing to the asynchronous laying pattern, loosely built nesting and weak parental behaviors.

Page generated in 0.2705 seconds