The main objective of the study was to investigate the effectiveness of the strategies employed by the City of Harare in household solid waste management. To achieve these, structured questionnaires, interviews, observations and focus group discussions were employed in data gathering together with secondary data. The study was conducted in Harare’s low, medium and high density income suburbs. Findings revealed that organic solid waste constituted the largest proportion of waste generated in Harare and other forms are also generated yet their collection is very minimal. Residents resort to illegal night dumping, resulting in the proliferation of associated diseases. In light of these findings, it was recommended that waste collection entities be capacitated, people be educated on waste recycling, reduction and reusing. A commission was to be put in place to ensure proper enforcement of waste legislation, effective and sustainable day in running of household solid waste management in the city / Environmental Sciences / M.Sc. (Environmental Management)

Cosmo City was established as a pilot project to integrate the low, middle and high income communities to live together and share common resources like schools, medical facilities, churches and shopping centres. Over a period of seven years, waste management has become a problem leading to littering, illegal dumping and overfilling of skips. Perceptions of waste management in different income households were studied. The specific objectives were, willingness of households to separate waste from source, health concerns emanating when one interacts with waste at the sources, effect of incentives on household’s willingness to separate waste from source, household’s opinion on including the waste pickers in the formal waste management system. Data was collected using structured questionnaire and interviews. The results indicated that 30% of low income households, 23% of middle income households and 10% of high income households recycle waste. The study revealed that 78% of low income households, 78% of middle income households and 80% of high income households were willing to sort waste from source. Overall results showed about 20% drop when sorting waste without incentives was suggested. 52% of low income households, 55% middle income households and 48% high income households rated hygiene as the major health concern on sorting waste from source. 85% of low income households, 77% of low income household, 71% of middle income and 78% of high income households support the incorporation of waste pickers in the formal waste management system. The results related to perceptions of the community on waste management suggest that the three different communities are willing to participate in waste management and support the incorporation of the waste pickers in the formal waste management system. In general this study should serve as a guideline for legislation, policy and regulations formulation. Integrated solid waste management that involves waste pickers and separation of waste from source can help with job creation, boosts the economy and deviate waste from landfilling to recycling. / Environmental Sciences / M. Sc. (Environmental Management)

In South Africa most of the municipal solid waste is currently removed and taken to land fill sites for engraving. A very small percentage of this is recycled due to lack of exploration of alternative means of further processing. In 2011 approximately 108 million tonnes of waste, mostly being general waste was generated in South Africa. Ninety eight (98) million tonnes of this waste was disposed of at landfill sites (The Department of Environmental Affairs [DEA], 2012). Environmental engineers are finding municipal solid waste management to be a challenge, similarly do the city planners and local administration. The main reason being the difficulty brought about by the complexity in composition of the waste material, no availability of waste minimization technologies and the scarcity of land for landfill sites and their environmental impact (Lal & Singh, 2012). Anyaegbunam (2013) recommend that there is a disposal technique that can convert most of the landfill waste at reduced amount of money to what is being paid on other disposal techniques nowadays, regardless of its form or composition and produce an excess of clean energy, and that technique is called Plasma Gasification which carries a high capability of being economically efficient. According to Young (2010), plasma arc Gasification is a high-temperature pyrolysis process whereby the organics of waste solids (carbon-based materials) are converted into syngas. The syngas can also be sent to gas turbines or reciprocating engines to produce electricity. Few of these plants exist in the world, however there is none in South Africa due to municipal budgetary constraints and lack of evidence for return on investment. Gasification can be described as a thermo-chemical process wherein carbonaceous or carbon-rich feed stocks, for instance tree trimmings or biomass, coal, and petro-coke are transformed into a complex gas containing hydrogen and carbon monoxide (and smaller quantities of carbon dioxide and other trace gases) under high pressure, oxygen exhausted, strong heat and/or steam environments (SRS Energy Solutions, 2016) The problem of electricity shortages continues to increase and communities are unable to cope with the continuous rising electricity bills. It is forecast that electricity demand will grow by approximately 85% and thereby reaching 31 700TWH (terawatt hours) in the year 2035. This growth rate is anticipated at an annual rate of 2.4% of which the economic and population growth will be the driving force, while on the other hand the daily increase of waste at landfill sites poses many problems with regards to the lifespan of the landfill in case green technological disposal processes are not introduced.

Thesis (MTech (Public Management))--Cape Peninsula University of Technology, 2012. / One of the greatest problems Mozambique is currently facing is the increased involvement of sectors in producing large amounts of solid waste on a daily basis. These sectors are involved in activities that take place in homes, industry, mining, agriculture and commerce. As a result, this problem needs to be treated efficiently by the Municipality of Maputo. Solid waste produced each day in Maputo is not only an aesthetic problem but poses a threat to citizens' health and it damages the environment. With the production of large amounts of waste each day, the Municipality of Maputo is faced with an ineffective solid waste management system. This ineffectiveness is due to a number of reasons, which include lack of resources, inadequate or no staff training, poor management of solid waste by both the municipal and the government, inappropriate laws to regulate solid waste collection, poor control of such laws in terms of removal and disposal of the waste, using past colonial methods for dealing with solid waste and poor community involvement, The problem not only affects the Municipality of Maputo but it also affects both citizens and the environment. Ineffective solid waste management is linked to poor management, lack of resources, poor staff training, and unskilled public officials. The city gets dirtier as the amount of waste increases day by day, due to the fact that citizens living in rural areas have immigrated to the city looking for work after the civil war, which took place between 1977 and 1994. Emerging from a severely damaged war-torn economy, Mozambique is still in the process of reconstituting many of its public institutions. Communities, local government, industry, commerce, civil society, academics and religious organisations can no longer turn a blind eye to poor solid waste management. Instead, they need to join to fight against poor management of solid waste. The current situation demonstrates that too few individuals, non-profit organisations and private companies are involved in solid waste management activities. Effective solid waste management can only be effective if it engages all producers of waste and captures the policy strategies, planning and challenges of sustainable development.

Waste is not only harmful to the environment alone but it is also a threat to human health and as such its proper management becomes critical. This study which adopted a qualitative approach focused on the review of policies for sustainable solid waste management service in Buffalo City Metropolitan Municipality in an effort to seek what the municipality’s Solid Waste Department should consider in ensuring that all the communities live in a litter free, clean and healthy environment, and ensure that such a service is received by all communities within its jurisdiction. The most sustainable solid waste management strategy would be to adopt the solid waste hierarchy of promoting waste minimisation, re-use, recycling, waste treatment and disposal as the last resort.

M.A.(Geography) / The prevention of environmental deterioration and the concept of sustainable development has become a major concern worldwide. However, increasingly affluent lifestyles along with continual commercial and industrial growth have led to the rapid increase in waste production (Renoua et al., 2008). The most common method of dealing with this production of waste is the disposal thereof by landfill, although this technique is widely viewed as unsustainable. Landfilling is critical to integrated waste management in South Africa due to its simplicity and cost effectiveness (Allen, 2001). Thus, there is a great need for environmentally acceptable landfill management practices. This research is primarily concerned with landfill management strategies and their effect on operational and management issues. A comparative analysis of the Marie Louise and Rooikraal landfill sites was carried out to distinguish differences in landfill management strategies and their outcome on operational and management issues. A concept, indicator, variable approach was used as comparative framework, while external audit reports, landfill management plans, and interviews were used as data sources identifying indicators and variables for analysis. Findings revealed that the Rooikraal landfill has been performing at a high standard, while the Marie Louise landfill has been underperforming due to a number of management failures. Factors that could have contributed to this failure include: external factors and its strain on effective management, capacity of local governments to deliver services with regard to waste management, issues surrounding co-operative governance, legal enforcement and compliance, and lack of control and awareness over landfill operations. These issues are direct consequences of landfill management and operation through municipal entities, making landfill management through municipal entities a key area of concern for effective landfill operations.

M.Tech. (Chemical Engineering) / The design process was carried out in two stages: feedstock analysis and system design. Under feedstock analysis, the study investigated the amount of the organic fraction of municipal solid waste (OFMSW) generated at the study area which was situated at the University of Johannesburg’s Doornfontein Campus (UJ DFC) in downtown Johannesburg South Africa. Furthermore, the feedstock analyses involved characterisation studies on the target waste under which several laboratory tests were undertaken. The system design involved sizing of the suitable biogas digester to be used in the system applying mathematical models and feedstock parameters obtained from the feedstock analyses. Via the application of the Simple Multi-Attribute Rating (SMART) technique of multiple-criteria decision analysis (MCDA) as a decision support tool, the most preferred option of biogas plant model was selected from a list of potential alternatives available on the market. And, in addition, a suitable site around the study area was selected by applying the analytical hierarchy process (AHP) technique of MCDA. Other system components and accessories such as the piping, scrubbers and valves were sized, selected, integrated into the system and finally layout drawings were produced using Inventor computer aided drafting (CAD) Software. Furthermore, feasibility assessments were conducted on the proposed system such as energy usage assessments and economic analyses using the net present value (NPV), internal rate of return (IRR) and benefit-cost ratio (BCR) techniques...

M.Sc. (Environmental Management) / Over the last eighteen years or so, the Gauteng province has attracted the greatest proportion (45.6%) of foreigners in South Africa. Along with rapid population growth, accelerated rural-urban migration and the rise of low-income houses and informal settlements, some of the District Municipalities around the City of Johannesburg and other urban centres have witnessed increased concentration of population and settlements. In many instances, the capacity of local municipalities to provide adequate infrastructure and services has been severely compromised, especially with respect to the achievement of integrated and sustainable waste management and waste minimisation interventions, including the reuse, recovery and recycling of municipal solid waste. Inevitably, local municipalities are struggling to successfully deliver effective waste management services within their jurisdiction, despite the lack of space for new landfill sites in urban complexes and the promulgation of new laws, regulations and strategies for achieving waste minimisation in South Africa. However, there is paucity of research on how municipalities are performing with respect to waste management challenges and minimisation initiatives, given the new waste management and regulatory regime in South Africa. Considering that the Gauteng-City region has limited space for new landfills, the need to maximise the use, effectiveness and efficiency of current landfill sites is of strategic importance. Hence, this study has examined the effectiveness and efficiency of current waste management and minimisation trends in two District Municipalities in the Gauteng province. To this end, questionnaire surveys have been undertaken in the study areas, making use of purposive sampling methods. The surveys undertaken targeted key individuals in the municipalities and some of the managers of landfill sites. The survey also included the role of informal waste reclaimers and the quantities of waste they recover and sell as well as some of the operational barriers they are experiencing. Findings emanating from this study indicate that more emphasis is placed on the traditional waste management approach through ‘unsustainable’ landfilling rather than providing an enabling management framework for enhancing and promoting waste minimisation through waste prevention and recycling. Failure by local municipalities to encourage waste recycling initiatives is of serious concern, especially in view of the fact that existing landfill sites in West Rand District Municipality have a limited lifespan. The need to preserve landfill space is therefore vital and the best way to achieve this is to reduce the amount of waste being disposed off. The current practice of unrestricted solid waste generation and its disposal and the low level of waste recycling suggests that most local municipalities in the study area lack the capability to make a substantial contribution to waste minimisation. For further research, it is recommended that more surveys should be undertaken in other Metropolitan Municipalities of the Gauteng province, including the City of Johannesburg, City of Tshwane and Ekurhuleni. Such studies would provide additional insights on the extent of waste minimisation in these areas and whether or not the goals of integrated and sustainable waste management are being achieved in South Africa.

No description available.

South African manufacturers, including those who produce electrical and telecommunication cables, are required by the National Waste Management Strategy (NWMS) (drawn up by the Department of Environmental Affairs and Tourism (DEAT)), to carry out waste management in a coordinated and controlled manner. It is also becoming more difficult for South African companies, who produce for export markets, to conduct business internationally if they do not have some form of environmental management system in place. While there will always be scrap generated in any manufacturing environment, the aim is, first and foremost, to reduce this to acceptable levels and, secondly, to dispose of all scrap produced in a socially responsible manner. This study focuses attention on waste management, in the form of recycling, in the cable manufacturing industry. The purpose of this study is twofold: first, to examine the economic case, by means of a cost-benefit analysis, for the establishment and operation of a telecommunication cable waste recycling plant for the purpose of recycling copper conductor; second, to examine the economic feasibility, by means of a cost-benefit analysis, of extending the existing facility in order to accommodate the recycling of the plastic fraction contained in the cable waste. A specific cost-benefit stream was generated over a project period of 20 years for both CBAs. In both CBAs costs and benefits were categorised as being either primary or secondary. The primary costs and benefits for both CBAs were all financial in nature and were valued using market prices. The secondary costs of establishing and operating a cable waste recycling plant for recycling the copper conductor included effluent costs and noise pollution costs. The secondary benefits, on the other hand, included the creation of downstream industries. The secondary costs of extending an existing cable waste recycling plant, so as to accommodate the recycling of the plastic component of cable waste, included costs related to the generation of greenhouse gases and asthma. The secondary benefits, conversely, included the increase in house prices due to the reduction of landfilling of the plastic component of cable waste. The determination of increased house prices due to landfill avoidance was carried out using the hedonic pricing method (HPM). The hypothesis was that house values would increase the further removed they were from the landfill site. Applying regression analysis to the derived hedonic pricing (HP) function showed that there is a definite correlation between the two. Properties positioned two kilometres from a landfill site in New Brighton Port Elizabeth, Eastern Cape, were found to have higher values than those positioned adjacent to the site. From the cost-benefit streams, net benefits were calculated for each CBA and discounted to present values in order to provide a standard of comparison. The social discount rate used in this study to calculate the present values reflected a combination of the social opportunity costs of capital and the social time preference rate. The rate used was calculated as the average annual rate between 2000 and 2005 and amounted to 6.72 percent. It was derived from a combination of the opportunity costs of government borrowings, household consumption borrowings and return on savings.