published_or_final_version / Environmental Management / Master / Master of Science in Environmental Management

published_or_final_version / Environmental Management / Master / Master of Science in Environmental Management

No description available.

No description available.

The main objectives of this study were: to provide a review of key concepts and issues relevant to solid waste management in developing countries; to analyse and evaluate the hotel solid waste management (HSWM) program in Bali, Indonesia; and to suggest recommendations and areas for further research. The following data collection methods were used in this study: review of documents and literature, interviews, surveys and field observations. Tourism in host regions such as Bali can bring both positive and negative impacts. One aspect of tourism that can have an impact on local communities is solid waste management (SWM). Improper SWM can lead to pollution and deterioration of the aesthetic appeal of tourist destinations. Conversely, solid waste can be a resource to the local community, providing opportunities for business development and the achievement of social, political and environmental objectives. Planning for SWM is complex, involving the consideration of multiple and interconnected issues. Therefore, in addressing SWM issues, it is appropriate to use an integrated approach that recognises the various stakeholders, activities and perspectives involved. In addition, concepts such as appropriate technology, cleaner production, life cycle assessment and environmental management systems can be useful for improving how solid waste management is approached. A local environmental non-governmental organisation (NGO), waste hauler and hotels in Bali developed a program to improve the management of solid waste from hotels. The history, planning, management and stakeholders involved with the development of this program are described in this study. Various issues pertaining to the achievement of social, environmental and economic objectives are investigated to provide a view of program realities and the range of challenges faced by program participants. Conclusions and lessons learned from the case study are presented and links between concepts in the literature and findings from the case study are discussed. Recommendations concerning topics such as planning, management, stakeholder involvement, health and safety, data management and source separation are suggested and future research directions are outlined.

Waste is anything which is considered to be no longer useful to anyone. In reality, it actually possesses the ability to be the raw material for several other processes and applications. Improper handling of wastes could result in several environmental hazards such as air pollution, soil erosion, methane emissions, low birth rate and others. In developing countries, proper handling of wastes is one of the important topics to be focussed from an environmental perspective. This thesis aims to propose an improved waste collection system in Gaborone through investigating the current waste management practices in Gaborone from different perspectives. Several stakeholders were interviewed for gathering information related to the present waste legislations, waste collection, treatment, and disposal methods. A composition study was also conducted along with the other research teams in order to support the objective of this thesis. The results shows that the current waste management practices has certain flaws which the management has to overcome in order to avoid the environmental impacts caused by the waste generation in Gaborone. Basic Recycling and treatment facilities are absent in Gaborone. The local government do not have any updated plans for the proper handling of wastes. The obtained results are critically analysed to showcase the existing flaws in the waste management practices, and using the state of the art knowledge in waste management the research team suggests an improved waste collection system for Gaborone considering the economic and environmental conditions.

The main objectives of this study were: to provide a review of key concepts and issues relevant to solid waste management in developing countries; to analyse and evaluate the hotel solid waste management (HSWM) program in Bali, Indonesia; and to suggest recommendations and areas for further research. The following data collection methods were used in this study: review of documents and literature, interviews, surveys and field observations. Tourism in host regions such as Bali can bring both positive and negative impacts. One aspect of tourism that can have an impact on local communities is solid waste management (SWM). Improper SWM can lead to pollution and deterioration of the aesthetic appeal of tourist destinations. Conversely, solid waste can be a resource to the local community, providing opportunities for business development and the achievement of social, political and environmental objectives. Planning for SWM is complex, involving the consideration of multiple and interconnected issues. Therefore, in addressing SWM issues, it is appropriate to use an integrated approach that recognises the various stakeholders, activities and perspectives involved. In addition, concepts such as appropriate technology, cleaner production, life cycle assessment and environmental management systems can be useful for improving how solid waste management is approached. A local environmental non-governmental organisation (NGO), waste hauler and hotels in Bali developed a program to improve the management of solid waste from hotels. The history, planning, management and stakeholders involved with the development of this program are described in this study. Various issues pertaining to the achievement of social, environmental and economic objectives are investigated to provide a view of program realities and the range of challenges faced by program participants. Conclusions and lessons learned from the case study are presented and links between concepts in the literature and findings from the case study are discussed. Recommendations concerning topics such as planning, management, stakeholder involvement, health and safety, data management and source separation are suggested and future research directions are outlined.

No description available.

Gasification technologies are expected to play a key role in the future of solid waste management since the conversion of municipal and industrial solid wastes to a gaseous fuel significantly increases its value. Municipal solid waste (MSW) gasification for electrical power generation was conducted in a fluidized bed gasifier and the feasibility of using a control system was evaluated to facilitate its management and operation. The performance of an engine using the gas produced was evaluated. A procedure was also tested to upgrade the quality of the gas and optimize its production. The devices installed and automated control system developed was able to achieve and maintain the set conditions for optimum gasification. The most important parameters of reaction temperature and equivalence ratio were fully controlled. Gas production went at a rate of 4.00 kg min-1 with a yield of 2.78 m3 kg-1 of fuel and a heating value (HV) of 7.94 MJ Nm-3. Within the set limits of the tests, the highest production of synthesis gas and the net heating value of 8.97 MJ Nm-3 resulted from gasification at 725°C and ER of 0.25 which was very close to the predicted value of 7.47 MJ Nm-3. This was not affected by temperature but significantly affected by the equivalence ratio. The overall engine-generator efficiency at 7.5 kW electrical power load was lower at 19.81% for gasoline fueled engine compared to 35.27% for synthesis gas. The pressure swing adsorption (PSA) system increased the net heating value of the product gas by an average of 38% gas over that of inlet gas. There were no traces of carbon dioxide in the product gas indicating that it had been completely adsorbed by the system. MSW showed relatively lower fouling and slagging tendencies than cotton gin trash (CGT) and dairy manure (DM). This was further supported by the compressive strength measurements of the ash of MSW, CGT and DM and the EDS elemental analysis of the MSW ash.

Thesis (Ph. D.)--Ohio State University, 2004. / Title from first page of PDF file. Document formatted into pages; contains xvii, 342 p.; also includes graphics. Includes bibliographical references (p. 164-171). Available online via OhioLINK's ETD Center