Thesis (MTech(Environmental Health))--Cape Peninsula University of Technology, 2018. / This study focuses on the assessment of the Green Zone Partnership Model (GZPM), which is a partnership project that was initiated by the City of Cape Town and Bonteheuwel community as a solution towards littering and illegal dumping in public open space areas. It is reported that the City of Cape Town is spending about R350 million year to remove waste illegally dumped in public open spaces around the city. In an attempt to assess the GZPM, the study has been used the environmental partnership theory as an approach to analyse the nature and significance of this partnership project. Over the last 20 years, following the emergence of the concept of sustainability, various organisations including governments are moving towards partnerships with various stakeholders as tools to finding solutions to environmental facing the planet (Long & Arnold, 1995). The emergence of this approach was the catalyst for a partnership formation to address the waste problem within the case study area (Ibid, 1995:34). To locate the study within the broader theoretical debate, the study draws on the theory of environmental partnership. Environmental partnership refers to the partnership formed to engage stakeholder partners in order to solve specific environmental problems. Similarly, Emas (2015:2) argues that partnerships encourage participatory decision making regarding the identification and solution of the current environmental problem. They are, to a larger extent, key to achieving the vision of sustainable development. In the South African context, the popular rise of a democratic system since 1994 has coincided with the escalation of various partnership projects, specifically formed to improve environmental quality. While there is a plethora of partnerships of this nature, with some initiated by the World Bank, IMF, and European Union; there is still a need to assess whether or not these partnership initiatives attain the desirable outcome(s). It is from this backdrop that this research seeks to assess the green zone partnership to establish whether or not it has improved environmental quality with specific reference to littering and illegal dumping in Bonteheuwel community The study used qualitative research design to answer the question raised in this research. Community survey and Face to face in-depth interviews with key stakeholder partners were conducted to collect data that which helped to answer the research question. This data was triangulated with other type of data collected from a household survey conducted within the study area. The data collected revealed how the partnership arrangement (GZPM) has improved the environmental and waste conditions in the communities. The results of the study will be crucial to the environmental health practitioners and managers dealing with waste related problems at local government level. The study has contributed to the existing knowledge in the field of environmental management, environmental health, waste management and natural resource management. Finally, the study concluded that partnership of this nature should be driven by champions from the communities to ensure that the environmental solution is sustainable for the benefit of the future generation. The fact that the partnership project was initiated and funded by the City of Cape Town does not guarantee as sustained solution toward a specific environmental problem (e.g., illegal dumping in public open space areas).

University of Macau / Faculty of Science and Technology / Department of Civil and Environmental Engineering

University of Macau / Faculty of Science and Technology / Department of Civil and Environmental Engineering

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

A series of resonant column and torsional shear (RCTS) and large scale resonant column (LSRC) tests were performed to investigate the dynamic properties (shear modulus and material damping ratio) of municipal solid waste (MSW). the MSW materials were recovered from the Tri-Cities landfill adjacent to the San Francisco Bay in California. A total of 30 specimens 2.8-in. (71.1-mm) and 6.0-in. (152.4-mm) of old, fresh, and mixed MSW were reconstituted in accordance with established sample preparation procedures. Ten of specimens were small-diameter (2.8-in. (71.1-mm)) RCTS specimen and 20 specimens were larger (6.0-in. (152.4-mm)) LSRC specimens. Dynamic laboratory measurements were performed in the linear and nonlinear strain ranges. Test parameters affecting the dynamic properties in the linear range included: (1) duration of confinement, (2) isotropic total confining pressure, [sigma]o, (3) excitation frequency, f, and (4) specimen size. Other test parameters affecting dynamic properties in the nonlinear strain range were: (1) shearing strain amplitude, [gamma], (2) isotropic total confining pressure, (3) overconsolidation ratio, (4) number of loading cycles, and (5) excitation frequency. In addition, the effects on dynamic properties of MSW specimens of material parameters such as (1) waste composition, (2) water content, (3) unit weight of waste, and (4) particle size were evaluated. The total unit weights of old, fresh, and mixed MSW specimens were estimated during testing in the RCTS and LSRC devices. These estimated total unit weights in the laboratory were compared with those measured at other MSW landfills and were found to generally be less than the field measurements. At a given [sigma]o, Gmax decreases with decreasing weight percentage of soil-size (passing the 3/4-in. (19.1-mm) sieve) material. However, Dmin increases slightly with decreasing weight percentage of soil-size material. Another relationship was developed between estimated total unit weight, [gamma]t, and confining pressure, including weigh percentage of soil-size material. The Vs profiles of old, fresh, and mixed MSW specimens obtained in the laboratory tests were compared with those measured at other MSW landfills in situ. The 62 to 76% soil-size material groups are in good agreement with in-situ Vs profiles. The variation in normalized shear modulus and material damping ratio curves were patterned after the Darendeli model (2001) for different weight percentages of soilsize material. An empirical relationship between normalized shear modulus (G/Gmax) and modified material damping ratio (D-Dmin) was developed in the nonlinear strain range. As part of collaborative research project, nonlinear shear modulus reduction and material damping curves generated by The University of Texas at Austin (UT) and The University of California at Berkeley (UCB) were compared according to different weight percentages of soil-size material. Furthermore, nonlinear shear modulus reduction and material damping ratio curves generated by UT were also compared with ones previously proposed by other researchers.

D. Tech. Civil Engineering. Tshwane University of Technology, 2011.

published_or_final_version / Public Administration / Master / Master of Public Administration

No description available.

A number of environmental, social and economic problems are associated with waste disposal in landfill operations. The potential hazards associated with landfill operations are numerous and include fatal accidents, infrastructure damage, pollution of the local environment, harmful air emissions, to simple nuisance problems – such as dust, odour, vermin, and noise pollution. Further challenges include the availability of land and lack of municipal or other financing in the face of rising operation costs. Landfilling is, however, seen by many as an environmentally responsible and cost-effective solution to waste disposal. It is acknowledged however to lead to waste of resources by burying valuable materials that could have been reutilized. Careful engineering can resolve this shortcoming, yet the associated challenges and costs can become prohibitive. The regulatory environment also affects the prospects for adopting this approach to landfill site management in different contexts. The Mariannhill landfill site in eThekwini Municipality, South Africa, provides an opportunity to investigate both the range of challenges which these type of sites encounter, and the solutions which have been developed as a response. The central questions which this research seeks to answer are whether the practices adopted by the Mariannhill landfill site are replicable in other solid waste landfills around eThekwini and whether it can be viewed as an example of best practice in landfill site management more generally. The research finds that the main barrier to easy replication of systems followed at Mariannhill in other landfill sites is the difficulty in replicating the specific structures and character of management. Another key determining factor found is the prevailing attitudes to recycling and the environment in general in the society. Consumers choices are seen to be critical to the prospects for recycling of solid waste, including the size, degradability and recyclable potential of products purchased. In considering the potential for replication of the Mariannhill model as an example of best practice, it becomes clear that the technical aspects of operations at Mariannhill are the most easily replicable, yet other and equally important determinants of success are not easily replicable. These include the existing regulatory environment and prevailing societal attitudes towards recycling. / Thesis (M.T.R.P.)-University of KwaZulu-Natal, Durban, 2009.

Waste management systems are created based on a careful balance of interrelated factors, a variety of players, and diverse political, social, and economic landscapes. The purpose of this study is to identify the impacts to waste management caused by limited supply or increased cost of energy. A case study was created based on the Alberta Capital Region using literature review, surveys and interviews to identify how energy is used throughout the various phases of waste management, from collection through to disposal and diversion, and what the factors are that affect the organization and infrastructure selected for the waste management system. The results of this study conclude that there are economic, social, environmental, political, and decision-making impacts related to an energy crisis. In particular, it was concluded that an energy crisis will cause social and economic stresses that will result in organizational and infrastructure changes to waste management.