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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.
31

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.
32

Thirsty downstream : the provision of clean water in Jakarta, Indonesia

Argo, Teti Armiati 05 1900 (has links)
The challenge of water provision in third world cities is to maintain the supply in the context of inadequate and inefficient piped water infrastructure and diminishing raw resources. In order to examine the role of governance in this, I utilize a range of theoretical positions: the welfare orientation, rational choice paradigm, common goods theory and regime theory, and present them as ways to explore the subjective dimension of water provision. Using the city of Jakarta, Indonesia as a case study, this dissertation explores the issues using different perspectives on a single principal focus, the roles of the government and its relations to non-governmental actors. This research used data from secondary materials such as management reports, policy and academic reports, and scientific studies. The major source of primary data were interviews conducted with about 40 key actors. Qualitative analysis used a system of information coding and triangulation. The conclusion reached is that the approach to managing clean water provision needs to be redefined in relation to the water management regimes found in situated research. In Jakarta, one may define three regimes: piped water, surface and shallow groundwater, and deep groundwater. Accessing water from greater urban watershed, treatment plants and a "manufacturing process" results in the delivery of a product. Such a system reduces the possibility of the tragedy of the commons, that is, the over-extraction of groundwater by individuals. But a more inclusive and enforced regulatory system must be established for groundwater, as it remains a needed source of supply. Local and low-technology solutions, international agency assistance, the policies of privatization and decentralization, and better land use planning, all hold out the promise of movement towards a solution. But, as the case study demonstrates, success has so far been mixed. Many options do not address water scarcity at the city level and problems of inequitable service. It is only the prospect government reform towards a better allocation of roles, new management ideas and greater co-operation within and among the water regimes that will lead to better provision of clean water.
33

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.
34

The problems of devolving water management functions to municipalities : the case of Tshwane metropolitan municipality / Amon Benjamin Ntoane

Ntoane, Amon Benjamin January 2002 (has links)
This was a study of the devolution of water and sanitation management functions from the Department of Water Affairs and Forestry and Rand Water Board to Tshwane Metropolitan Municipality. This affects the functions and the infrastructure that goes with it. This exercise is the fulfilment of the provisions of Water Services Act that empowers municipalities to become Water Services Authorities and where capacity exists to also become Water Services Providers. It was found that though constitutionally, water and sanitation functions resort under municipalities, in the area of study, the Tshwane municipality did not directly deliver these functions. This happened due to the fact that Tshwane did not have human capacity to deal with the functions, they provided the funding as a subsidy to Rand Water Board who in turn provided financial support to Odi Retail Water that is currently responsible for water and sanitation management as a subsidiary to Rand Water Board. The following are recommendations derived from the findings: That the political activities be raised in the areas to encourage people to pay for their services and take responsibility for meter reading on their own like it is happening in Denmark. In Denmark each household reads meters for both water and electricity personally and submits the readings to the municipality for billing. As a result the municipality did not employ special meter readers and by so doing they safe on salaries. That greater resource allocation is made to cover the shortfalls that were experienced due to lack of management capacity and other resources that would enable Tshwane municipality to run the functions on their own. That capacity building and support for professionals be streamlined on the current Odi Retail Water staff for future absorption by municipality. 4. That promotion of community-based development be continued to encourage community ownership on water management functions. This could be done through the formation of community water associations. While community-based approaches are now accepted as the norm, the necessary: capacity to support them in most cases does not generally exist at the higher levels (national, district and local) and Tshwane needs to look at this. Communities currently remain uninterested in taking part in wider water management for a number of reasons, including lack of ownership or control over decisions; lack of real power to make allocation and use decisions; high transaction costs of involvement; and poorly developed frameworks by which the views of large communities can be represented at stakeholder fora. Therefore, Tshwane must make sure that community's interest is supported in all respect. If the municipality cannot handle these functions on its own, then privatisation should be considered for efficient and effective water and sanitation management and provision. / Thesis (MBA) North-West University, Mafikeng Campus, 2002
35

A community-based approach for the operation and maintenance of shared basic water and sanitation services in informal settlements within the municipal jurisdiction of the City of Cape Town

Illing, Cindy January 2009 (has links)
Thesis (MTech (Public Management))--Cape Peninsula University of Technology, 2009 / Access to basic water and sanitation services in South Africa is considered a basic human right, and constitutionally, local government is responsible for the provision thereof. However, in the informal settlements in towns and cities, residents continue to be exposed to environmental health risks that result from poor and inadequate basic sanitation provision. Municipalities are under pressure to address the sanitation backlog according to the national target that is based on the Millennium Development Goals (MDG). The provision of infrastructure alone does not account for the provision of an improved, safer and more hygienic environment for its users. A badly managed sanitation facility is an environmental health risk, and it encourages inappropriate and unsafe sanitation practice. Municipalities cannot claim to meet the sanitation backlog targets unless appropriate and effective management systems are in place to operate and maintain the basic sanitation facilities provided. Through the Integrated Development Plan (IDP) process, local government is encouraged to develop partnerships to promote economic development and job creation, particularly in areas of extreme poverty and high unemployment through the delivery of services. Public participation, social learning, empowerment and sustainability are the key components of the people-centred development approach that currently guides the delivery of municipal services South Africa (Davids,I. 2005). The White Paper on Local Government advocates municipalities to work with communities to find sustainable ways to meet their needs through an approach that is driven by formulating linkages between development, service delivery and local citizen participation (Mogale, T. 2005:219). It is also argued that the only way to effectively link poverty reduction strategies and improved service delivery is through the formation of partnerships that are based on meaningful participation (Mogale, T. 2003). Public participation also allows for an opportunity for increased community buy-in and support that is essential for the sustainable delivery of services to informal settlements so as to reduce incidents of misuse and vandalism. Communication and collaboration across municipal departments is also required, as sanitation service delivery in its broad definition, falls across the Water Services, Health and Solid Waste Departments. Hence the need for an integrated and inclusive approach to planning is required. Using a participatory action research (PAR) process, this study proposes to investigate whether there are local community-based opportunities for the procurement of some of the operation and maintenance tasks for the recently refurbished public ablution blocks in an informal settlement within the City of Cape Town. Public ablution blocks are one of the sanitation technology options available for the provision of shared basic sanitation services provided to informal settlements within the City of Cape Town. The research is divided into three stages. The first two stages serve as the building blocks for the third stage of the research. The objectives are to obtain an improved understanding of the “local knowledge” at community level, to obtain an understanding of the operation and maintenance activities in informal settlements currently being undertaken by City of Cape Town, and to initiate contacts and develop relationships with key stakeholders for their participation in the focus group discussions in the third stage. The third stage of the research proposes to adopt a participatory approach involving key stakeholders to identify the opportunities and make recommendations to the City of Cape Town to consider for the development of an operational plan for the operation and maintenance of the Khayelitsha Ablution Blocks.
36

‘The right to the city’ for marginalised communities through water and sanitation service projects

Maina, Mary Wairimu January 2017 (has links)
Thesis (DTech (Design))--Cape Peninsula University of Technology, 2017. / The introduction of water service programmes has significantly improved the delivery of Water and Sanitation Services to marginalised communities in Kenya. Since the implementation of the Kenya Water Act of 2002, enacted policies have resulted in communal ablution blocks and water kiosks in some of the more densely populated settlements. In the development of service provision programmes to improve access to water and sanitation, the social and cultural implications have yet to be addressed. To better understand the partnerships between the marginalised community and the political agencies that ensure improved allocation of resources, community participation should be addressed in the emerging water governance. The right to water is a key clause in the new constitution of Kenya and although this is a laudable recognition of citizens’ rights to basic services, this constitutional clause is yet to be fully implemented. The exclusion of social practices followed by marginalised communities results in limits in the promotion and implemention water and sanitation projects. The resulting lack of water and sanitation services decreases the internal capacities of community members and inhibits development. A natural and finite resource such as water, often taken for granted by most, is the foundation to improved places in a community. These places reflect social relations within the given society and provide a platform for interaction. When this engagement occurs, meaning in both physical and social boundaries between different communities that emerge, can help assert agency to marginalised groups. While a programme is used to define a space by regulating through building codes and standards, a community’s role is validated by the inclusiveness of the design process. Therefore the resultant project allows for a sense of agency to be built, while boosting interaction through learning programmes, to improve civic duties in the society. These aspects are crucial for development and can be achieved using allocation of basic services like water and sanitation. Grounded Theory is used to analyse the interviews from the respondents and it concerns itself with the meanings attributed to steps within processes. This approach is applicable when meanings attributed to macro-level explanations and micro-level activities need to be uncovered. The interviews conducted for this study are analysed line-by-line coding and memo writing. The data is used as a narrative of distinct processes in both marginalised communities and political agencies. Using the model of an agent the study illustrates the process of agency that highlights the role of marginalised communities in participatory approches toward equitable access to water and sanitaion services. The cases approached in this study further articulate the processes used by political agencies to engage in community participatory approaches. Though these participatory approaches were seen to be more inclusive than previous service delivery approaches, gaps emerged in the study that are addressed in the relationship matrix. This model distinguishes the differences in the production of space through Water and Sanitation Service programs, and the creation of place in implemented projects. By aligning these two aspects of the production of space when applied to marginalised settings helps in understanding the context prior to the implementation of WSS development programmes. This recognition of the role that marginalised communities play in socioeconomic development can improve programmes and projects aimed at providing water and sanitation services. This access is important to marginalised groups which are disadvantaged, because of a difference in their practices. By understanding the social practices around the use, management and safeguarding of water and sanitation projects, community members can begin to attach cultural value to their water resources. This has implications for the sustainability of the projects and their replicability. Therefore social practices, and by extension culture, influence the concept and design of programmes to enable access to water and sanitation resources, especially to marginalised groups in society.
37

A conceptual end-use model for residential water demand and return flow.

Jacobs, Heinz Erasmus 27 May 2008 (has links)
A conceptual end use model for residential water demand and return flow is presented in this thesis. The model requires a unique description of a single residential stand in terms of all its end-uses. The end-uses include toilet flushing, bathing and showering, garden watering, leaks, et cetera. Various parameters describe each of the end-uses. The model predicts five components relating to water demand and wastewater flow at a residence: indoor water demand, outdoor water demand, hot water demand, wastewater flow volume and concentration of solutes in the wastewater. Twelve monthly results are calculated, for each of the five components, to provide a typical seasonal pattern as well as an annual value. The large number of input parameters in an end-use model allows for powerful and detailed analysis. The parameters required to populate the model are discussed and guideline values are presented. The end-use model is used to conduct a sensitivity analysis of each independent parameter for each of the five individual model components. The elasticity and sensitivity is determined at a base point with respect to each parameter for all five results. A research significance index is also devised to integrate the elasticity and availability of data for each parameter. The result is a prioritised list of the most critical parameters for each of the five components, which are the ones that should receive the focus for future study and data recording. The parameters are combined to obtain a list of the overall most important parameters in the model for all components combined, and based on a combination of the elasticity-based rank and the sensitivity based rank. The five most important parameters are the household size, toilet flush frequency, toilet flush volume, the washing machine event frequency and the volume of leaks on a stand. The practical application of the model is illustrated. The researchers first apply the model to mimic a few commonly accepted characteristics of water demand. The effectiveness of some specific water demand management measures are evaluated by adjusting selected model parameters. The measures include xeriscaping, the installation of dual-flush toilets, low-flow showerheads, pool ownership and pool cover use. The model also enables practitioners to obtain an insight into the water use habits of homeowners. The model forms the basis for further research work in the field. Its relatively simple structure and realistic data requirement encourages its integration into existing commercially available software suites for water and sewer system analysis and -management in the civil engineering industry in South Africa, as well as abroad. / Prof. J. Haarhoff
38

On-site leakage in selected suburbs of Johannesburg, South Africa

Lugoma, Faustin Tessa 05 September 2012 (has links)
M.Ing. / An investigation was conducted on on-site leakage in selected suburbs of Johannesburg to determine the average leakage flow rate of water lost per property, as well as the distribution patterns of leakage flow rates for two categories of properties: Residential (single domestic houses on stands) and Other (non-domestic and large domestic users). The incentive of this research project, funded by the Water Research Commission (WRC) of South Africa, was to provide figures and to gain insight into the magnitude of water lost at the consumer level, also defined as "on-site leakage". Little was published on on-site losses compared to water losses in municipal distribution systems. The key information for this study was collected through physical inspection of a group of randomly selected properties and by means of measurements taken from municipal water meters used for billing purpose. The project was assisted by Johannesburg Water (Pty) Ltd who provided a list of 233 properties having water meters of less than five years old. These properties were chosen at random and included properties whose meters were replaced due to meter failure or customer complaints. The results of the research show that overall 64 % of investigated properties had measurable on-site leakage at an average rate of 22.9 I/h per property, equivalent to a monthly volume loss of 16.5 kl per property. The median rate was 5.7 I/h per property, translated into a volume loss of 4.1 kl/month per property. An analysis of the data revealed that the general extreme value distribution and its derivatives (Frechet, Wakeby, Exponential and Gamma) provide good descriptions of the distribution of on-site leakage rates. The apparent losses resulting from metering errors were also estimated. The results of this study should be of interest to water engineers and to decision-makers involved in water demand management. It could form a basis for further investigation in the analysis of on-site leakage on a large scale in South Africa by systematically monitoring all segregated categories of users throughout different cities and towns in South Africa.
39

Thirsty downstream : the provision of clean water in Jakarta, Indonesia

Argo, Teti Armiati 05 1900 (has links)
The challenge of water provision in third world cities is to maintain the supply in the context of inadequate and inefficient piped water infrastructure and diminishing raw resources. In order to examine the role of governance in this, I utilize a range of theoretical positions: the welfare orientation, rational choice paradigm, common goods theory and regime theory, and present them as ways to explore the subjective dimension of water provision. Using the city of Jakarta, Indonesia as a case study, this dissertation explores the issues using different perspectives on a single principal focus, the roles of the government and its relations to non-governmental actors. This research used data from secondary materials such as management reports, policy and academic reports, and scientific studies. The major source of primary data were interviews conducted with about 40 key actors. Qualitative analysis used a system of information coding and triangulation. The conclusion reached is that the approach to managing clean water provision needs to be redefined in relation to the water management regimes found in situated research. In Jakarta, one may define three regimes: piped water, surface and shallow groundwater, and deep groundwater. Accessing water from greater urban watershed, treatment plants and a "manufacturing process" results in the delivery of a product. Such a system reduces the possibility of the tragedy of the commons, that is, the over-extraction of groundwater by individuals. But a more inclusive and enforced regulatory system must be established for groundwater, as it remains a needed source of supply. Local and low-technology solutions, international agency assistance, the policies of privatization and decentralization, and better land use planning, all hold out the promise of movement towards a solution. But, as the case study demonstrates, success has so far been mixed. Many options do not address water scarcity at the city level and problems of inequitable service. It is only the prospect government reform towards a better allocation of roles, new management ideas and greater co-operation within and among the water regimes that will lead to better provision of clean water. / Applied Science, Faculty of / Community and Regional Planning (SCARP), School of / Graduate
40

Vulnerability Analysis of Infrastructure Systems

Lane, Sean Theodore 07 July 2020 (has links)
Complex cyber-physical systems have become fundamental to modern society by effectively providing critical services and improving efficiency in various domains. Unfortunately, as systems become more connected and more complex, they also can become more vulnerable and less robust. As a result, various failure modes become more common and easily triggered from both unanticipated and malicious perturbations. Research has been conducted in the area of vulnerability analysis for cyber-physical systems, to assist in locating these possible vulnerabilities before they can fail. I present two case studies on different forms of critical infrastructure systems to identify vulnerabilities and understand how external perturbations can affect them, namely UAV drone swarms and municipal water infrastructure.

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