General as well as the municipal solid waste （MSW） management in Thailand is reviewed in this paper. Topics include the MSW generation, sources, composition and trends. The review, then, moves to sustainable solutio...General as well as the municipal solid waste （MSW） management in Thailand is reviewed in this paper. Topics include the MSW generation, sources, composition and trends. The review, then, moves to sustainable solutions for MSW management and sustainable alternative approaches with an emphasis on an integrated MSW management. Information of waste in Thailand is also given at the beginning of this paper for better understanding of later contents. It is clear that no one single method of MSW disposal can deal with all materials in an environmentally sustainable way. As such, a suitable approach in MSW management should be an integrated approach that could deliver both environmental and economic sustainability. With increasing environmental concerns, the integrated MSW management system has a potential to maximize the useable waste materials as well as produce energy as a by-product. In Thailand, the compositions of waste （86%） are mainly organic waste, paper, plastic, glass and metal. As a result, the waste in Thailand is suitable for an integrated MSW management. Currently, the Thai national waste management policy starts to encourage the local administrations to gather into clusters, to establish central MSW disposal facilities with suitable technologies and reducing the disposal cost based on the amount of MSW generated.展开更多
This paper summarizes the situation of e-waste recycling in China, points out several key problems, identify the causes and draw lessons and experiences abroad about e-waste management, propose systematic suggestions ...This paper summarizes the situation of e-waste recycling in China, points out several key problems, identify the causes and draw lessons and experiences abroad about e-waste management, propose systematic suggestions from the production side, the recovery side, consumers side, government departments and thelegislation.展开更多
During the energy crisis of the nation and normal day-to-day activities, biogas technology can be a potential alternative source of energy. Conventional biogas has considerably low output methane gas for a given organ...During the energy crisis of the nation and normal day-to-day activities, biogas technology can be a potential alternative source of energy. Conventional biogas has considerably low output methane gas for a given organic input. Considering the need for efficient biogas plant, SOWMS （solid organic waste managing system） has been designed and implemented on a trial basis by constructing community bin at ward number 4 of Gothatar VDC, Nepal. When composition of output biogas from the SOWMS was tested for five times, at different days, the average composition of gas was 55% methane and 35% carbon dioxide. The gas produced from 1 kg of waste is calculated to be 45 liters and pH value of slurry was found to be 7.8. These values indicate that designed system has good performance and that it can be optimized in the future research. Finally, this research work has some social implications that can have potential impact to uplift the society.展开更多
文摘General as well as the municipal solid waste （MSW） management in Thailand is reviewed in this paper. Topics include the MSW generation, sources, composition and trends. The review, then, moves to sustainable solutions for MSW management and sustainable alternative approaches with an emphasis on an integrated MSW management. Information of waste in Thailand is also given at the beginning of this paper for better understanding of later contents. It is clear that no one single method of MSW disposal can deal with all materials in an environmentally sustainable way. As such, a suitable approach in MSW management should be an integrated approach that could deliver both environmental and economic sustainability. With increasing environmental concerns, the integrated MSW management system has a potential to maximize the useable waste materials as well as produce energy as a by-product. In Thailand, the compositions of waste （86%） are mainly organic waste, paper, plastic, glass and metal. As a result, the waste in Thailand is suitable for an integrated MSW management. Currently, the Thai national waste management policy starts to encourage the local administrations to gather into clusters, to establish central MSW disposal facilities with suitable technologies and reducing the disposal cost based on the amount of MSW generated.
文摘This paper summarizes the situation of e-waste recycling in China, points out several key problems, identify the causes and draw lessons and experiences abroad about e-waste management, propose systematic suggestions from the production side, the recovery side, consumers side, government departments and thelegislation.
文摘During the energy crisis of the nation and normal day-to-day activities, biogas technology can be a potential alternative source of energy. Conventional biogas has considerably low output methane gas for a given organic input. Considering the need for efficient biogas plant, SOWMS （solid organic waste managing system） has been designed and implemented on a trial basis by constructing community bin at ward number 4 of Gothatar VDC, Nepal. When composition of output biogas from the SOWMS was tested for five times, at different days, the average composition of gas was 55% methane and 35% carbon dioxide. The gas produced from 1 kg of waste is calculated to be 45 liters and pH value of slurry was found to be 7.8. These values indicate that designed system has good performance and that it can be optimized in the future research. Finally, this research work has some social implications that can have potential impact to uplift the society.
