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  • 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.
21

Passive samplers : development and application in monitoring organic micropollutants in South African water bodies and wastewater

Amdany, Robert 04 March 2014 (has links)
Annually, the global environment receives enormous amounts of persistent organic pollutants (POPs) that include polychlorinated biphenyls (PCBs) and organochlorine pesticides (OCPs), in addition to polycyclic aromatic hydrocarbons (PAHs). Their ubiquity has made them identifiable contaminants in almost every environmental compartment of the global system. In particular, aquatic systems have been adversely affected by these pollutants. Therefore, effective monitoring, both in ground and surface water, that can reliably assess their environmental impacts is required. Passive samplers have been proposed as suitable options to the traditional grab/spot/bottle sampling approach because they simultaneously sample, isolate and enrich target analytes. Moreover, apart from successfully detecting very low water dissolved analyte concentrations (trace and sub-trace levels), the devices can also provide time weighted average (TWA) concentrations that take into account episodic events. This is usually not practical with other sampling techniques.
22

The effects of water scarcity on rural livelihoods: a case study of Borakalalo village in Lehurutshe (North West Province)

Tabane, Lydia Ikgopoleng January 2017 (has links)
Thesis (M.Sc.)--University of the Witwatersrand, Faculty of Science, School of Geography, Archaeology & Environmental Studies, 2016. / The aim of this thesis is to expose the effects of water scarcity on rural livelihoods. The chosen study site for this investigation is Borakalalo village in Lehurutshe region (North West Province). The aim of this study was to explore the water usage patterns of households in Borakalalo village in order to unpack the various water-related activities that households in Borakalalo engage with. The main argument made in this thesis is that in order to comprehend the effects of water scarcity on rural livelihoods, it is paramount that the water usage trends of rural dwellers be documented and, the contribution made by various water-related activities in generating a livelihood income be scrutinised. Therefore, using the sustainable rural livelihood framework of analysis, the goal of this study was to investigate the role that water plays in securing a livelihood for households in Borakalalo village. The introduction chapter explains the relevance of this study in the context of South Africa as a whole, also paying special attention to Borakalalo village, which is the chosen study site for this investigation. The methodology chapter highlights the advantages and disadvantages of methodological techniques employed in this study. A critical engagement with literature on water scarcity reveals some of the key conceptual dilemmas in defining water scarcity. Furthermore, the social, political and economic impacts of water scarcity on a global and national scale are looked into. A household survey that was conducted with 150 households in Borakalalo village aimed to uncover the water usage trends of rural households and, to examine how water serves the livelihoods of households in Borakalalo village. In the discussion chapter some of the main findings in this investigation are brought forth through looking at the ways in which water-related activities such as agriculture, livestock herding and small water-related rural enterprises sustain rural livelihoods. Although the discussion uncovers the role of water in a productivist rural economy, the results also seem to suggest that there is a shift in the rural economy from productivist to post-productivist livelihood activities. Henceforth, as much as water scarcity poses a threat to productivist livelihood activities, it also limits the expansion of the emerging post-productivist rural livelihoods. Furthermore, the increased need for monetary income in rural households in order to compensate for the loss of productive rural activities is evident. However, high levels of unemployment in rural areas limit the capacity of rural households to generate monetary income, and henceforth, livelihoods in Borakalalo village are enormously threatened by current water shortages in the village. / MT2016
23

The development of an Activity Based Costing model for the Water Trading Entity of South Africa

Ndoro, Misheck January 2017 (has links)
Thesis (M.Com. (Accounting))--University of the Witwatersrand, Faculty of Commerce, Law and Management, School of Accountancy, 2017 / The Water Trading Entity (WTE) under the Department of Water Affairs and Sanitation in South Africa is mandated by the National Water Act to charge users for raw water supplied, and the tariffs it charges must enable it to fully recover its costs. The entity is concerned that it is not achieving full equity in relation to refining the recovery mechanism to obtain tariffs that represent usage of resources. This research study sought to investigate the possibility of implementing Activity Based Costing (ABC) in order to overcome the deficiencies of using the Traditional Costing system. ABC is a costing tool that measures the cost of activities to provide more accurate cost information for management. This research examines the practicalities of applying ABC in the water sector. WTE supplies raw water to the Water Boards who further supply to Municipalities, which in turn supply to the final consumers. It is possible that due to the limitations of the traditional costing there may be a price distortion throughout the water supply value chain, and if this is corrected consumers may pay a fair price for water. This research paper has revealed that indirect costs are quite significant within the WTE and proposes an ABC model that would be easy to implement to allocate costs more accurately leading to a full recovery of costs. Keywords: Activity Based Costing, Traditional Costing, Indirect Costs, Water Schemes / GR2018
24

The effectiveness of municipal water service delivery in Hluvukani Community in Bushbuckridge, Mpumalanga

Mogakane, Moses Mbothi January 2018 (has links)
Thesis ( M.Dev.) -- University of Limpopo, 2018 / This study reflects on the effectiveness of municipal water service delivery in Hluvukani community in Bushbuckridge, Mpumalanga. Since the study wanted to have an in-depth understanding of the strategies/methods that the municipality use to deliver water services effectively in Hluvukani, both the qualitative and quantitative research approaches were used. It is within these methodologies that a case study was adopted to seek to deepen the strategies used by government and municipal officials to address the challenges of water experienced by villagers in Hluvukani. Three methods of data collection were used, namely: interviewing, non- participant observation and documents. Hluvukani village was selected as a site for the study by means of purposive sampling. The participants interviewed included the municipal manager, the municipal officials, Hluvukani villagers and officials from the Department of Water Affairs. The documents consulted included the municipal IDP and the 2015/2016 Municipal Budget. This study found that villagers have difficulties in accessing water at Hluvukani and the water service delivery was not effective even though the municipal manager claimed otherwise. This was manifested by the strategies that were used to delivery water such as using delivery trucks to supply water to Hluvukani villages every two weeks. This, the researcher found ineffective as people had to live without water delivery for a period up to four weeks.
25

The impact of improved water access for both domestic and productive uses on human development: the case of Letsoalo-Sekororo in Limpopo Province, South Africa

Motoboli, Ma-Edward Jermina January 2011 (has links)
Thesis (M.A. (Agricultural Economics))--University of Limpopo (Turfloop Campus), 2011. / The main aim of the study was to analyse the impact of improved water access for both domestic and productive uses on human development. The study was conducted in three villages in the Letsoalo-Sekororo community within the Mopani District Municipality in the Maruleng Local Municipality around the banks of the Olifants River in Limpopo Province, South Africa. The study used a total sample of 59 participants representing 40 households, 16 key informants. Three focus group discussions were held. Various variables for the households were selected and analysed using logistic regression. The method of agreement was used for key informants as well as for focus group discussions. The results from the logistic regression indicated that household size and quantity of water consumed by an individual per household was found to be showing a positive relationship to improved water access. Cattle ownership and household’s monthly income were found to be showing a negative relationship to improved water access. The results also indicated that other people’s private yard taps are the water source which showed a negative relationship to improved water access. The variable food availability throughout the year, showed a positive relationship to improved water access. Water related disease showed a negative relationship to improved water access. The results of method of agreement indicated that there are many challenges faced by the key informants. These challenges were because of the poor water reticulations and the fact that other households were unable to make their connections due to lack of a money. vii The study recommends that the Department of Water Affairs and the Maruleng Local Municipality should continue their efforts of getting enough and safe water fir the Letsoalo- Sekororo communities. Once that is done these communities will be able to get involved in income generating activities. / French Embassy through the Centre for Rural Community Empowerment
26

An investigation of water delivery constraints at Mabokelele village, Limpopo Province, South Africa

Manamela, Kwena France January 2010 (has links)
Thesis (M.Dev.) --University of Limpopo, 2010 / The aim of the research study was to examine and analyse the main constraints faced by the Polokwane Local Municipality in delivery water services to Mabokelele Village. For the researcher to be able to achieve the aim of the study, key research questions were posed which enabled the researcher to gather / collect data that helped shed more light in the research project. Research questions such as what are the constraints faced by the Polokwane Local Municipality in water delivery services, and what strategies are been to address those constraints and how effective are those strategies, were posed to the participants of this research study. The study used the qualitative research design. Respondents were seen as experts of their own life situation. Face to face interviews were used to collect data from the participants. Data analyses was done in the form of content data analysis. The key findings of the research project:- Shortage of skills in financial management, inadequate water service infrastructure, inadequate human resource for water service delivery, lack of co-operation between the Polokwane Municipality and the Mabokelele Induna and lack of community participation and consultation by the Polokwane Local Municipality and long delays caused by the tendering process were identified as the key findings for the study. Recommendations for the study was guided by the findings of the research project. The following served as recommendations for the study : Polokwane Local Municipality should ensure that people with financial management skills and project management are employed to avoid under-spending of the budget. Community participation and consultation should be key when implementing projects to the community, Department of Water Affairs to ensure that enough water service infrastructure is provided so that the Municipality can function properly. Dwarf should speed up the transfer of officials to Polokwane Local Municipality and lastly, the red tapes in the tendering processes should be minimized to avoid long delays in the approval of water projects.
27

Rural water supply services cost recovery mechanisms in Limpopo Province : a case study of Greater Tubatse Local Municipality

Sedikila, Pheladi Sherly January 2008 (has links)
Thesis (M.Dev.) --University of Limpopo, 2008
28

Water supply services in Greater Tzaneen Municipality : A case study of Lenyenye Township

Letsoalo, Masilo Simon January 2012 (has links)
Thesis (M.Dev.) --University of Limpopo, 2012 / The aim of the envisaged study is to investigate the water supply services in Lenyenye Township, in Greater Tzaneen Municipality and to derive suggestions and recommendations for improvement based on the objectives decomposed into the following: To review the extent and the magnitude of Water Supply problems and to identify, analyze the underlying causes of the water supply problems because the basic infrastructure provision of water supply is very poor and dismal across the area. Water serves as a basic need to which everybody has the right to access, be it for consumption or irrigation this service is, unfortunately, disrupted by many factors. The findings in the study for poor water supply emanate from many common causal factors such as management skills, technical challenges and illegal connections. Only two methods were employed to collect data in the study. Data collection was done by using the questionnaire and the interview methods and the interview involved direct personal contact with the participants who answered questions. A survey questionnaire was used to obtain data pertaining to water supply services from the representatives of water supply institutions. Recommendations in the study are based on the findings such as prioritization of effective water supply for Lenyenye township, community consultation and participation, addressing capacity constrains in the Municipality such as human resources, water service infrastructure, and skills development.
29

Sustainable private sector participation in water supply and sanitation : an investigation of the South African experience with international comparative case studies.

Maharaj, Aman. January 2003 (has links)
This thesis is a case study investigation of the sustainability of private sector participation in water supply and sanitation in developing countries, with a particular emphasis on South Africa. It is essentially an empirical contribution, which adds to the body of literature pertaining to the privatisation of water supply and sanitation services in developing countries. South Africa, like many developing countries, faces a significant challenge in providing a sustainable water supply and sanitation service to its citizens. It has a vast water supply and sanitation infrastructure backlog, because of the previous apartheid) government's minimal attention to the basic service needs of the African, Indian and Coloured people. This lack of basic services has had a negative effect on people's health and their basic living conditions. The traditional delivery vehicles for water supply and sanitation delivery in South Africa have been its municipalities. After the demise of the apartheid government, the democratic national government restructured these municipalities under various. processes. They merged neighbouring towns and villages, which incorporated former rural areas to achieve economies-of-scale. The intention was to ensure service delivery to the previously disadvantaged, through a mechanism of cross-subsidisation from the affluent to the indigent. However, these newly-demarcated non-metropolitan municipalities, still do not have the finances to extend the water supply and sanitation infrastructure network to rural areas within their jurisdiction. They also lack the good credit ratings to borrow funds from banks to finance new water supply and sanitation infrastructure. The rural population also has low abilities-to-pay for water supply and sanitation services. With total basic infrastructure backlogs estimated to exceed R270 billion in South Africa, the challenge to all tiers of government is considerable. Just rural water supply and sanitation over the next ten years requires R13.5 billion for the financing of new and rehabilitation of old, infrastructure. Faced with this dilemma, national government has attempted to resolve it by following the route taken by other developing nations, that is, by seeking the assistance of the private sector, National,provincial, or access to it. and some local governments argue that it is only the private sector that has the financial resources to fund this infrastructure backlog. To facilitate this change in service delivery vehicles. national government developed legislation to create an enabling environment for the entry of the private sector in the arena of water supply and sanitation provision. This transition has occurred with significant controversy and opposition. Many opponents to any form of privatisation base their argument on privatisation's fundamental drivers not being aligned with the goals of a development state. In the South African situation, these opponents include some organised labour trade unions, researchers, and labour-based research organisations. With firm pressure from this antiprivatisation coalition, private sector participation in water supply and sanitation services has been significantly staggered or impeded. Whilst this study provides evidence that this case of privatisation is not sustainable in the long-term, which is in agreement with this anti-privatisation coalition, the reasons underpinning the conclusion of this study, differ significantly from those of this coalition. The arguments that underpin differences in the opposition's views and this thesis are analysed throughout the rubric of this study. Three elemental constructs underpin the theoretical framework of this study. These constructs are compartmentalised into the nature of public goods and their natural monopoly status, the efficiencies of privatisation and its relation to ethics. and globalisation issues specifically dealing with the roles oftransnational companies. The study will show that the transfer of water supply and sanitation service delivery to the private sector in South Africa has not been sustainable due to various factors. These factors are investigated through the medium of empirical and case study analyses at a national and global comparative scale. Factors investigated include the reasons behind the privatisation, its transition period and procurement of public and other stakeholder buy-in to the change in service delivery, the role that the state has played in providing the enabling environment for privatisation, and the effectiveness of the opposition in delaying or impeding the pace of privatisation. The study also reveals that pilot projects have a special status and access to greater institutional support, which might facilitate its success. This extra attention might not be realisable in successive projects. Factors underpinning a successful privatisation include issues of efficiency, regulation and financial issues. These are also investigated within the rubric of the empirical and case study analyses. The impact of globalisation and the role of transnational companies with apparently "new technologies" and foreign direct investment, which pervade water supply and sanitation privatisation in developing countries, are also discussed. The case study examinations also provide evidence that in the South African situation, these apparent foreign technological innovations have yet to be confirmed. For South Africa and the other developing nations, the foreign direct investment has also been minimal in comparison to the profits that leave these host countries from the water supply and sanitation sector. The primary case study that underpins this research is the pilot project test case for the South African national government, the Dolphin Coast concession in its Kwazulu-Natal province . A comprehensive investigation of this concession provides evidence of the project's commercial failure. However, the concession remains in the hands of a private sector operator, due to the municipality controversially renegotiating the terms of the contract to facilitate the concession's continuity. This "municipal intervention" trend is noticeable in some international case studies. The English privatisation case is also investigated to provide a contrast between privatisation in a developed nation and a developing one. It also provides an insight into the facilitative environment of the English privatisation case, as compared to that of developing nations. The English privatisation, although not without controversy, was a decision taken by the government on efficiency grounds, whilst developing nations have taken the privatisation step based on reasons of infrastructure deficiency and a lack of finance. Essentially, the former is a push factor, whilst the latter has been a pull factor. This thesis includes a case study investigation conducted at the World Bank in New Delhi, India, which provides evidence of the opposition from state bureaucrats to privatisation in India. This serves as a contrast to the organised worker opposition in South Africa, and highlights some of the differing impediments that face privatisation attempts in each respective country. It shows that the reasons underpinning the opposition to privatisation in developing nations facing similar crises are, in fact, dissimilar. The study also investigates the success that can be achieved through the economies-of scale of a public sector utility in South Africa, shown by the Umgeni Water case study. This is essentially a public agency that has corporatised5 along business principles and employed economies-of-scale to become a successful example of public sector water supply and sanitation provision in a developing country. Cumulatively, this study provides evidence that, in South Africa, the transfer of water supply and sanitation services to the private sector is not sustainable without some degree of state intervention. This is especially evident in cases where there are no economies-of-scale to be exploited, and a lack of affluent people to ensure a critical degree of payment of tariffs or cross-subsidisation to the indigent. In effect, by transferring these services to private hands, this would serve only to postpone the eventual lack of sustainability that these services are currently experiencing in public sector hands. The evidence reveals that the privatisation of water supply and sanitation services in South Africa is not a commercially viable option in the long-term, under the normal mechanisms of supply and demand of the market. Concomitantly, the South African national government and its municipalities are faced with a new dilemma. The private sector can provide immediate sources of financing for urgent water supply and sanitation infrastructure development that cannot be similarly procured from limited state funds or other sources. Considering the urgency to provide water supply and sanitation infrastructure, because of the health-related effects that no access creates, privatisation, with strong regulation, may be a more amicable alternative to the current financial restrictions on municipalities, until a more comprehensive and sustainable solution is found. / Thesis (Ph.D.)-University of Natal, Durban, 2003.
30

The effects of privatisation of municipal entities on customer service quality : a case study on Johannesburg Water (PTY) LTD.

Mashava, Thandi. 28 October 2013 (has links)
Abstract available in attached PDF document. / Thesis (MBA)-University of KwaZulu-Natal, Westville, 2006.

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