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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.
61

A situational analysis on the public participation processes in integrated water resources management in the Kat River Valley, Eastern Cape, South Africa

Naidoo, Merle January 2009 (has links)
Public participation in water management processes is one of the internationally recognised and adopted principles of Integrated Water Resource Management. The South African Department of Water Affairs and Forestry aims to facilitate the decentralisation of water management powers to the local community level via the establishment of regional and local water management institutions, namely Catchment Management Agencies, Water User Associations and Catchment Forums. The National Water Act (No. 36 of 1998) acknowledges that the discriminatory laws and practices of the past have prevented equal access to water and the use of water resources. The contribution of water management institutions to social and economic development, in particular poverty eradication and food security, is mentioned in the water act. The participation of poor rural communities living in the Kat valley, an area where an elite minority reap the benefits of water use for agriculture, is the focus of this research. Their participation, perceptions and experiences are documented and explored to determine how the promulgation of post-apartheid water policy and legislation has affected their access to water. The results of this research are based on data collected from several methods including surveys, workshops and observation. Analysis of these data revealed the complicated and stagnant nature of participation from Kat valley rural communities in local water management initiatives and organisations. Existing water management organisations were not successful in stimulating poor people’s participation as they were unable to address their primary concerns, namely a secure source of potable water, employment and access to water for agricultural purposes. This thesis asserts that the Department of Water Affairs and Forestry, as the custodian of South Africa’s water resources, has not taken on a supportive, accountable role in assisting marginalised communities with improving their access to water for domestic purposes and securing access to water rights for productive use. This, in turn, has led to dissatisfaction among these communities and a wariness of participatory activities that focus mainly on raising environmental awareness. The establishment of effective accountability relationships among all stakeholders, pro-poor water management structures and initiatives, as well as integrated and co-operative management of natural resources, are needed to revitalise the present participation of poor communities living in rural areas.
62

Fire and water : a transdisciplinary investigation of water governance in the lower Sundays River Valley, South Africa

Clifford-Holmes, Jai Kumar January 2015 (has links)
The implementation of water policy and the integrated management of water face multiple challenges in South Africa (SA), despite the successes of post-apartheid government programmes in which some significant equity, sustainability and efficiency milestones have been met. This study uses a series of intervention processes into municipal water service delivery to explore the context, constraints, and real-world messiness in which local water authorities operate. The equitable provision of drinking water by local government and the collaborative management of untreated water by ‘water user associations’ are two sites of institutional conflict that have been subjected to broad ‘turnaround’ and ‘transformation’ attempts at the national level. This thesis seeks to explore and understand the use of transdisciplinary research in engaging local water authorities in a process of institutional change that increases the likelihood of equitable water supply in the Lower Sundays River Valley (LSRV). Fieldwork was conducted as part of a broader action research process involving the attempted ‘turnaround’ of the Sundays River Valley Municipality (SRVM) between 2011 and 2014. A multi-method research approach was employed, which drew on institutional, ethnographic, and systems analyses within an evolving, transdisciplinary methodology. In the single case study research design, qualitative and quantitative data were collected via participant observation, interviews and documentary sources. Analytical methods included system dynamics modelling and an adapted form of the ethnographic tool of ‘thick description’, which were linked in a governance analysis. Government interventions into the SRVM failed to take account of the systemic complexity of the municipal operating environment, the interactions of which are described in this study as the ‘modes of failure’ of local government. These modes included the perpetual ‘firefighting’ responses of municipal officials to crises, and the simultaneous underinvestment in, and over-extension of, water supply infrastructure, which is a rational approach to addressing current water shortages when funds are unavailable for maintenance, refurbishment, or the construction of new infrastructure. The over-burdening of municipalities with technocratic requirements, the presence of gaps in the institutional arrangements governing water supply in the LSRV, and the lack of coordination in government interventions are analysed in this study, with policy recommendations resulting. The primary contribution of this study is in providing a substantively-contextualised case study that illustrates the value of systemic, engaged, extended, and embedded transdisciplinary research.
63

An assessment of water quality and occurrence of antibiotic-resistant bacteria in Naauwpoortspruit River, Mpumalanga province, South Africa

Mudau, Khuthadzo Lunsford 03 1900 (has links)
Decreasing surface water quality in South Africa has become an issue of concern as the population grows, industrial and agricultural activities expand, and environmental pollution increases. Wastewater treatment plants and other anthropogenic activities are liable for releasing raw and inadequately treated effluents into the surface water. Extensive pollution accompanied by the use of disinfectants, pesticides, and other chemical pollutants has been attributed to increased antimicrobial resistance in bacteria such as Escherichia coli in surface water, increasing environmental antibiotic resistance spread. The research aimed to determine water quality and prevalence of antibiotic-resistant bacteria in Naauwpoortspruit River, eMalahleni, Mpumalanga Province. Five sampling sites were selected along the Naauwpoortspruit River and monitoring was done for seven consecutive months. Samples were collected and analysed for physicochemical, microbiological parameters, and susceptibility profile of antibiotic-resistant bacteria using standard methods. Pearson correlation analysis was used to assess the path and strength of the relationship between physicochemical and microbiological parameters in the study area. Results of physicochemical and microbial parameters showed variation throughout the selected study sites. The results revealed a pH range of 4.45 – 7.9 and electrical conductivity levels range of 58.63 - 113.3 mS/m for the different sampling sites during the study period with lower levels detected during the winter period and higher levels in the summer period. Also, water samples showed a high total dissolved solids levels range of 381.1 – 736.45 mg/L and biochemical oxygen demand range of 67.1 – 168 mg/L for the different sampling sites during the study period. The Naauwpoortspruit River had higher levels of ammonia of 33.4 mg/L at Point A during the winter period as compared to 15 mg/L in the summer period. Heavy metals results showed that mercury range of 0.01 – 0.065 mg/L and copper range of 0.001 – 0.0035 mg/L were not compliant with aquatic ecosystem guidelines at all selected sites throughout the study period. The foremost finding of this study was that E. coli were present in all the selected sites at concentrations (>100 cfu/100ml). Elevated concentrations of 5.4 x 103 and 4.2 x 103 cfu/100ml for the total and faecal indicator bacteria were detected from sites downstream to 2.2 x103 and 2.35 x103 cfu/100ml for sites upstream river, in the rainy months. During the dry season, total coliforms, and faecal coliforms concentration of 0.4 x103 to 0.65 x 103 cfu/100ml were detected downstream and 0.25 x 103 and 0.5 x 103 cfu/100ml from upstream, respectively. The physicochemical and microbiological parameters measured at selected sites exceeded acceptable limits and proved unsuitable for applications such as full and intermediate recreational activities, and aquatic ecosystems. The variation in physicochemical parameters results was influenced by both natural processes and human activities such as salinity and Acid Mine Drainage (AMD) within the Naauwpoortspruit River. Using the Kirby-Bauer disc diffusion method, E. coli and faecal coliforms were tested for resistance to antibiotics; ampicillin (10 μg/ml), kanamycin (30 μg), streptomycin (30 μg), chloramphenicol (30 μg), erythromycin (15 μg), ox tetracycline (30 μg), erythromycin (15 μg/ml) and norfloxacin (10 μg). More than 60% of faecal coliform were resistant to at least four of the tested antibiotics and between 60 - 80% of the E. coli isolates were resistant to β lactam. The highest microbial antibiotic resistance (MAR) index value was observed at Site D (0.38 for E. coli) which showed multi-antibiotic resistance. Site D is characterized by wastewater treatment, power generation industries, and agriculture activities. The highest level of MAR observed at Site D indicates the need to control extensive pollution and constantly monitor the changing trends in antimicrobial resistance patterns of these waterborne pathogens. Statistical analysis showed that the development of microbiological parameters loads has a strong correlation with physicochemical parameters due to the association of sampling sites in the river environment. This study shows that the aquatic ecosystem needs constant monitoring to establish their conditions, impacts of pollution activities within the catchment, and input information into sustainable management of the water resources. / Environmental Sciences / M. Sc. (Environmental Science)
64

Environmental health implications of water scarcity in Beitbridge Town, Matebeleland South Province, Zimbabwe

Moyo, Patience 23 July 2015 (has links)
MPH / Department of Public Health
65

Towards efficient water utilisation in South African Higher Education Institutions: A case study of University of Venda

Nkuna, Zanele 18 May 2019 (has links)
MESHWR / Department of Hydrology and Water Resources / Water scarcity has become a constraint for sustainable development in the higher education institutions in South Africa including University of Venda. Water infrastructure is one of the major challenges within higher education institutions, the existing water supply infrastructure is over 20 years old and was not planned for the current population. This study aimed at developing a water management plan for higher education institutions in South Africa using the University of Venda as a case study. A water resource management plan provides a road map for reducing water consumption while encouraging sustainable water utilisation. Evaluation was done within the institution to identify water sources, water resources infrastructure and water utilisation. The study employed questionnaire survey to collect data on water consumption, to evaluate issues of the institutional participation in resolving the water problems within the institution and deduce water wastage. Water supply data was obtained from meter readings and water invoices obtained from Vhembe District Municipality and University of Venda. The latter were used to determine water consumption within the institution. Based on the sample size, the results indicated the estimated amount of water consumed daily by UNIVEN population is 66 341.9 l/d excluding water utilised at the cafeteria, car wash and auditorium. The average water supplied to UNIVEN in 2017 was 67 642. 25 mega litres/month, this indicates that more water is supplied to the institution since the estimated institutional water demand excluding illegal students in the residence halls ranged between 415 740 l/d and 597 620 l/d of water while the estimated institutional water demand including illegal students varied between 282 2610 l/d and 406 6580 l/d. The latter further indicates that there is water wastage within the institution because the water supplied monthly to the institution was in mega litres as indicated in the invoices, but the results indicated that the amount of water utilised daily within the institution was in litres, this clearly shows that the respondents under estimated the amount of water they utilise. The average amount of water used by students residing on campus was 271 l/p/d to 735.5 l/p/d while day scholars and university staff use 55 l/p/d to 142.5 l/p/d. The average amount of water used for cleaning ranged between 1 318.5 l/d to 3 909 l/d while gardening usage ranged between 4600 l/d and 8 600 l/d. The School of Agriculture experimental farm uses 9 270.4 l/d and the university laundry was found to utilise 5 186 l/d. The university laboratories were found to utilise 125 l/d to 215 l/d per practical session with 3 to 4 practical sessions conducted per week. The study found that the total water used by construction workers for domestic purposes iv is 800 l/d. The utilisation trends showed that during the dry seasons, the university population generally used about twice as much water as compared to wet season because municipal water was supplemented by rain water for watering plants and washing the pavement. The survey results indicated that students residing in the university residences waste more water by allowing the tap to run while brushing teeth, washing dishes, excessive use of water to rinse clothes while doing laundry, opening showers and leaving the water running while waiting for a desired water temperature. Activities such as watering flowers and lawn in an unmonitored manner and pavement washing in which the hose pipe runs for several hours during watering and pavement washing result in water wastage. The university does not have an environmental or water education projects that encourage students and staff to use water efficiently. Water conservation measures are lacking in the institution because there are no policies and procedures that outline how water should be utilised. The developed water management plan for University of Venda outline the current water consumption, targets for reduction, drivers for reducing water consumption and water reduction strategies. This study recommends that the University targets to reduce potable water usage by 12% in the next 5 years. The latter has been highlighted in the proposed water management plan. The proposed plan further presents a suite of strategies to reduce water usage, improve institution water resources data and to plan for the future. Water utilisation within the institution has not been efficient due to water not being utilised in a sustainable manner. Sub-metering of each building, water awareness campaign, introduction of water utilisation policies, routine inspection and maintenance of infrastructure and appointing an environmental coordinator or working with water experts in the School of Environmental Sciences will help reduce water consumption within the institution. / NRF
66

Water quality assessment and evaluation of human health risk of drinking water at Thulamela Municipality, Limpopo Province

Luvhimbi, Ndivhudzannyi 29 June 2020 (has links)
MPH / Department of Public Health / Water quality of drinking water has been linked to good health outcomes across the world. The aim of this study was to assess physico-chemical, bacteriological, community practices regarding collection and storage of water and evaluation of human health risk characteristics of drinking water supplied by the government to Lufule village in Thulamela municipality, Limpopo Province, South Africa A cross-sectional study was conducted using questionnaires and interviews to determine drinking water handling practices and levels of contamination between the source and point-of-use at household. Assessment of water quality was carried out on 114 samples from selected sampling points using scientifically approved protocols. Total coliform was determined in 62.5% and 87.5% of the samples during the dry and wet seasons respectively. Similarly, E. coli was determined in 10.4 % and 13.2% in the dry and wet seasons, respectively. Trace metals levels in the drinking water samples were analysed and were within permissible range of both SANS and WHO. The calculated non-carcinogenic effects using hazard quotient toxicity potential, cumulative hazard index and chronic daily intake of drinking water through ingestion pathways were less than one unity, which showed that consumption of the water could pose little or no significant health risk. The results of this research suggest that lead has the potential of cancer risk to the residents through the cumulative ingestion in the drinking water samples of the studied area. Therefore, precaution needs to be taken to avoid potential risk of people in Lufule area especially, children. / NRF
67

Water security amongst impoverished households in the Sundays River Valley Municipality : community experiences and perspectives

Molony, Lara January 2015 (has links)
Water security is influenced by the complex interplay between ecological, socio-political, governance and water management systems. Achieving water security is essential for ensuring sustainable development, and challenges with water security are closely linked to the overall experience of poverty that many countries throughout the world, including South Africa, confront. These problems can broadly be understood through three main factors: water availability, access and usage; water governance and management underpin these factors. Water insecurity can often be seen in townships within South Africa, where water service delivery and water access is precarious. This study provides a lens into the water security experiences of two poor township communities in the Sundays River Valley Municipality (SRVM) namely Nomathamsanqa in Addo and Aquapark in Kirkwood. The research assessed water security patterns amongst RDP, township and informal settlement households serviced by the SRVM and found that communities face severe water security problems. Specifically, it was found that all township households encounter frequent water shortages, cuts in municipal water supply and water quality concerns. Issues around the payment for water and dissatisfaction with water service delivery also emerged. The purpose of this research was to allow for community experiences and perspectives to be expressed in an academic space that has previously been dominated by water management and policy makers. The study concludes that these communities within the SRVM experience significant challenges in securing safe water and these are largely due to social water scarcity issues and the difficulties the municipality faces concerning water service delivery.

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