Дисертації: "Water Developing countries"

1

Wighton, Hilary. "Clean water for developing countries /." Click here to view, 2009. http://digitalcommons.calpoly.edu/socssp/8.

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Thesis (B.S.)--California Polytechnic State University, 2009.
Project advisor: Benjamin F. Timms. Title from PDF title page; viewed on Jan. 14, 2010. Includes bibliographical references. Also available on microfiche.

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2

Bocarro, R. A. "Water conserving WC design for developing countries." Thesis, Brunel University, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.379757.

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3

Vega, Isaac Manuel Ferrera, and Isaac Manuel Ferrera Vega. "Making Water Policy in Developing Countries: Water Resources in Tegucigalpa." Thesis, The University of Arizona, 2004. http://hdl.handle.net/10150/626795.

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The management of water resources around the world, and especially in countries with limited financial resources involves challenges that defy the sustainability and equitative use of the water. Governments have tended to respond through legislation to restrict uses and to redirect water management decisions to the Government itself. However, these fixed responses have proved not being effective due to the limited presence of central governments in the different watersheds. Consequences of this type of setting are a poor understanding of the hydrological issues, poor sustainability of the resources and unequitative distribution of water. On the other hand management of water resources, under a systematical view and under the administration of local users has been proved effective. The implementation of such managements allows a better adaptation of rules to local settings, the participation of the people and a permanent learning from the system. They seem a more advantageous water management approach for those countries where financial crisis do not allow a good monitoring and administration of their resources. Discussions about the topic are provided in the present thesis.

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4

Crouse, Anton. "The protection of water sources in developing countries." Thesis, Cape Technikon, 1986. http://hdl.handle.net/20.500.11838/2167.

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Thesis (Diploma (Civil Engineering))--Cape Technikon, 1986.
In rural areas in Southern Africa a nearby stream or spring is a village or kraal 's main water supply. The majority of these elementdry water sources are polluted. In this project the health hazard of polluted water and methods to protect water sources from pollution are discussed. The project consists of a report of fieldwork done in Southern Kwazula and compiling from the results a Technical Paper on water source protection.

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5

Ukoli-Onodipe, Grace O. "Designing optimal water supply systems for developing countries." The Ohio State University, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=osu1054719439.

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6

Ukoli-Onodipe, Grace. "Designing optimal water supply systems for developing countries." Columbus, Ohio : Ohio State University, 2003. http://rave.ohiolink.edu/etdc/view?acc%5fnum=osu1054719439.

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Thesis (Ph. D.)--Ohio State University, 2003.
Title from first page of PDF file. Document formatted into pages; contains xiv, 164 p.; also contains graphics. Includes abstract and vita. Advisor: Allan Randall, Dept. of Agricultural, Environmental & Development Economics. Includes bibliographical references (p. 147-157).

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7

Olugboye, Dayo. "Sustainable water resource and environmental management in developing countries." Thesis, University of Wolverhampton, 2017. http://hdl.handle.net/2436/620743.

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Water supply service delivery has been recognised as a complex challenge facing communities in developing countries. Its particularly serious in sub-Saharan Africa where a significant proportion of the population still lack basic access to safe drinking water supply. Over the years, many externally supported community-managed water facilities have failed to deliver sustainably. This results not only in a loss of financial investment but also constitutes a real threat to people’s health and well-being. Therefore, this study aimed to explore options for innovative water service delivery approach that can support vibrant water supply provision as well as provide a guidance framework for sustainable water service delivery in Nigeria. Due to the socio-technical complexity of the research, the mixed method approach was found to be the most suitable research method after extensive considerations and reviews of other several available research methodologies. The study found that the hand-dug wells (HDW) have enormous potential in sustainable water service delivery to households within the proposed framework arrangement. This research successfully presented a unique model, based on the concept of HDW self-supply, using rope pump technology in conjunction with a community-based water resource management concept. The proposed approach led to the production of a set of Guidance Frameworks that will aid planning and implementation of a proposed solution. This was validated with key stakeholders and it applicability was rated highly relevant in the water sector. The approach did not only address the question of technical and financial sustainability but also make a case for environmental sustainability. Hence, ensuring that meeting present domestic water needs will not jeopardise the ability of future generations to meet their own needs. Further research was recommended to ensure wider applicability of the model.

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8

Martinez, Vila, and Martin Alvaro. "Integrated water resources management: restoration of water quality in water resources from developing countries." Thesis, Сумський державний університет, 2013. http://essuir.sumdu.edu.ua/handle/123456789/31626.

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Water is most essential but scarce resource in developing countries. Presently the quality & the availability of the fresh water resources is the most pressing of the many environmental challenges on the national horizon. The stress on water resources is from multiple sources and the impacts can take diverse forms. Geometric increase in population coupled with rapid urbanization, industrialization and agricultural development has resulted in high impact on quality and quantity of water in developing countries. The situation warrants immediate redressal through radically improved water resource and water quality management strategies. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/31626

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9

Riley, Timothy. "Trans-boundary river basins: a discourse on water scarcity, conflict, and water resource management." Thesis, University of North Texas, 2003. https://digital.library.unt.edu/ark:/67531/metadc4396/.

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This thesis is an inquiry regarding the interconnections between water scarcity, geopolitics, resource management, and the strategies for developing effective ways to resolve conflict and encourage sustainable water resource use in developing countries. The ecological services of trans-boundary rivers are explored in conjunction with the potential impacts to freshwater availability due to economic modernization, water resource development, and decision making regimes that determine how water is allocated among competing users. Anthropogenic stressors that induce water scarcity and the geopolitical mechanisms of conflict are studied. A discourse on the creation and functional extent of global and localized water ethics is investigated, emphasizing the importance of perceptual dispositions of water users in understanding the value of trans-boundary river basins.

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10

Adinda, Safahati. "Water Privatization: An optimal and efficient means for developing countries?" Thesis, Växjö University, School of Management and Economics, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:vxu:diva-5497.

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Abstract

Privatization of goods and services can be a way to limit a firm's or a market's total costs. Water privatization in developing countries has many different reasons. The outstanding reasons are; the need to promote private investment in water sectors so that, national/private water rights and the millennium goals for water can be reached. Privatization is a process of changing a business ownership from a public to a private sector. By this process, the government loses power to the new private owner and the firm and/or market transfers to more business oriented. The private owner has one main goal in the business and that is to maximize the profit.

Water is a good that we all need in order to survive, regardless our economic conditions, son or later we all have to find a way to satisfy this need. Because of this, water is very important for all human being and a part of the human rights.

The crucial need of water for our existence and the private firm's goal are conflicting. This has created many commotions around the world and raised questions about how water privatization violates the human rights of UN conventions. But some people are pro water privatization and some of their arguments are that, privatization limits the government's external borrowing and improve the water distribution system.

Key words: Water privatization, Developing countries, Public sector, Private sector

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11

Aslam, Muhammad Sagheer. "Sustainability of community-based drinking water systems in developing countries." Thesis, McGill University, 2014. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=121365.

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A basic framework for sustainable community-based drinking water systems (CBDWS) is studied in this research program; it is based on the performance of existing water supply systems and on the responses to a survey by the various stakeholders. A model for overall sustainability was developed and validated through its application to about 70 CBDWS in rural settings of northern areas of Pakistan (as part of a developing country case study). In addition, analyses and scenario projections of environmental component of sustainability were made along with detailed analyses and syntheses of statistical surveys to gauge stakeholder perspectives and priorities and to incorporate the results in overall sustainability. The study concluded that sustainable CBDWS can be developed and operated only with active participation of stakeholders (grouped by experience as technical, environmental, economic, social, and institutional). The system must maintain safe and drinkable water resources (environmental considerations) and also maintain the potential for renewability through technically optimized design, high quality execution and regular infrastructure maintenance in an economically beneficial and self-reliant set-up. Social and institutional involvement must also be an integral part of the system. Failure of any of these components can affect the sustainability of the entire system. A relevant definition for sustainable CBDWS was formulated, along with the development of a new model for CBDWS sustainability. The model showed that properly maintained sources, proper infrastructure, aware society, stable economy, and effective institutions are linked components of a sustainable CBDWS, and failure of any of these components can affect the sustainability of the entire system. Scenarios for population that would be without access to improved drinking water in 2015 were also projected on the basis of the field studies. The field studies concluded that environmental sustainability in terms of capacity, quality, reliability and protection of drinking water sources is critical. Projection of these findings to a broader level shows that unless urgent measures are undertaken, serious "fallbacks" may occur in the established Millennium Development Goals (MDG) of the United Nations. In the context of the relevant MDG, such fallbacks can reverse the situation to a previously unsustainable condition.The stakeholder subjectivities and priorities for the various elements of CBDWS were examined and quantitatively incorporated into the system. The environmental and institutional components appeared as higher priorities among the various group stakeholders. The environmental component is a higher priority among stakeholders with natural sciences and engineering backgrounds, whereas institutional component (related to community institutions) is the foremost priority for stakeholders with social sciences backgrounds. Finally, for monitoring and evaluating CBDWS, a cost-effective and user-friendly applied framework capable of accommodating field data with varying levels of quality was developed.
Un cadre de base pour les systèmes d'eau potable communautaires durables (CBDWS) est étudié dans ce programme de recherche, il est basé sur la performance des systèmes d'approvisionnement en eau existantes et sur les réponses à une enquête menée par les différents intervenants. Un modèle de durabilité globale a été développée et validée par son application à environ 70 CBDWS en milieu rural des régions du nord du Pakistan (dans le cadre d'une étude de cas de pays en développement). En outre, les analyses et les projections du scénario de composante environnementale du développement durable ont été faites ainsi que des analyses et des synthèses détaillées des enquêtes statistiques pour évaluer les perspectives et les priorités parties prenantes et d'intégrer les résultats en matière de durabilité globale. L'étude conclut que CBDWS durables peuvent être développés et exploités uniquement avec la participation active des parties prenantes (défini dans l'étude: techniques, environnementales, économiques, sociales et institutionnelles). Le système doit conserver des ressources en eau salubre et potable (considérations environnementales) et aussi de maintenir le potentiel de renouvellement grâce à une conception techniquement optimisé, l'exécution de haute qualité et un entretien régulier de l'infrastructure d'une manière économiquement avantageuse et autonomes set-up. L'engagement social et institutionnel doit également faire partie intégrante du système. Défaillance d'un de ces composants peut affecter la durabilité de l'ensemble du système. Une définition pertinente pour CBDWS durable a été élaboré, avec le développement d'un nouveau modèle de durabilité CBDWS. Le modèle indique que les sources sont bien entretenus, infrastructures adéquates, la société consciente, une économie stable et des institutions efficaces sont des éléments nécessaires et liés d'une CBDWS durables, et l'échec de l'un de ces composants peut affecter la durabilité de l'ensemble du système. Scénarios pour la population qui seraient sans accès à l'eau potable en 2015 ont également été projetées sur la base d'une étude de terrain. L'étude de terrain a conclu que la durabilité de l'environnement en termes de capacité, la qualité, la fiabilité et la protection des sources d'eau potable est essentielle. Projection des conclusions de l'étude sur le terrain à une plus grande échelle montre que si des mesures urgentes ne sont pas prises, solutions de repli graves peuvent survenir dans les Objectifs du Millénaire pour le développement établis (OMD) des Nations Unies. Dans le contexte des OMD pertinents, ces solutions de repli peuvent inverser la situation d'un état précédemment insoutenable. Les subjectivités des parties prenantes et des priorités pour les différents éléments de CBDWS ont été examinés et quantifiable incorporés dans le système. Les composantes environnementales et institutionnelles sont apparues comme des priorités plus importantes entre les différentes parties prenantes du groupe. La composante environnementale est une priorité plus élevée chez les intervenants en sciences naturelles et en génie milieux, alors que composante institutionnelle (par rapport aux institutions communautaires) est la priorité pratique pour les parties prenantes avec les sciences sociales milieux. Enfin, pour suivre et évaluer CBDWS, un cadre appliqué rentable et convivial, mais bien définie et systématique capable de recevoir des données de terrain avec différents niveaux de qualité a été développé.

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12

Shrestha, Manish M. "Feasibility of Satellite Water Tanks for Urban Areas in Developing Countries." University of Cincinnati / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1353342510.

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13

Barnes, Rebecca Ruth Civil &amp Environmental Engineering Faculty of Engineering UNSW. "Planning for sustainable water and sanitation projects in rural, developing communities." Awarded By:University of New South Wales. Civil & Environmental Engineering, 2009. http://handle.unsw.edu.au/1959.4/44507.

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Premature failure or abandonment of water or sanitation interventions in developing communities is a common phenomenon and one which is preventing potential benefits from being fully realised. While the causes of project failure are complex and varied, the literature addressing project failure implicates poor planning in many unsustained small-scale projects. In particular, a number of authors criticise planning that fails to include consideration of key sustainability areas. This thesis explores the relationship between planning for rural water and sanitation development projects and their sustainability using both ??depth?? of information gathered through a case study in rural Philippines and ??breadth?? of information gathered from key informants representing a range of regions and organisational types. Key informant interviews show the case study findings to be generally transferable between regions. Both methods illustrate the need for interpersonal relationships of trust and unity, commitment and integrity in project personnel, significant time spent in data-gathering and consensus development, creative modes of communication, ongoing contact and detailed long-term financial planning. A critical evaluation of 17 prominent, existing planning frameworks for rural water supply and sanitation projects is presented with respect to key attributes of good planning practice as identified during the case study and interviews. The evaluation reveals both strengths and inadequacies in current planning frameworks, illuminating possible causes of persistent poor planning. Finally, methods are identified by which planning processes can be improved so as to reduce the incidence of early water and sanitation project failure. An existing decision framework, the Water Services Association of Australia (WSAA) Sustainability Framework, was trialled during the Philippines Case Study. The new Planning Framework for Rural Water and Sanitation was developed as a result of the trial, the case study and the interviews. The new framework employs the primary sustainability criteria in the decision process in the form of constraints developed using participatory processes, thereby defining a safe space within which the beneficiaries may have freedom and confidence to select their desired technical solutions. Other key elements of good planning practice are incorporated, including those typically omitted by existing frameworks in the rural water and sanitation development sector.

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14

Mohammed, S. T. "Roughing filtration of surface water for village supplies in developing countries." Thesis, University of Newcastle Upon Tyne, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.378262.

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15

Meeks, Robyn. "Essays on the Economics of Household Water Access in Developing Countries." Thesis, Harvard University, 2012. http://dissertations.umi.com/gsas.harvard:10367.

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This dissertation focuses on the economics of household water access in developing countries. The first paper explores whether improvements in water technology enable changes in household time allocation and, thereby, productivity gains. To do so, it exploits differences in timing of shared water tap construction across Kyrgyz villages. Households in villages that received the drinking water infrastructure are more likely to have water close to their homes. This reduced the time intensity of home production activities impacted by water. Village-level incidence of acute intestinal infections fell amongst children. Although adults show no signs of health improvements, they do benefit from reductions in the time spent caring for sick children. Individuals reallocate time savings to additional leisure and market labor, primarily work on the household farm, and the returns to the additional farm labor approximately equal the hourly farm wage. Time intensive water collection can be a source of gender inequality in households lacking water infrastructure. The second paper uses a natural experiment to investigate culture as a source of gender inequality and its role in determining gender roles for activities, such as water collection. Using exogenous variation in district-level cultural composition due to events in Kyrgyzstan during Soviet rule, I estimate the persistence of differences in gender equality between traditional sedentary farming cultures and nomadic herding cultures. Results indicate that Soviet institutions increased educational attainment in both cultures. Other cultural differences - such as gender of household water collector and perceptions of domestic violence - persist. One impediment to the construction of water infrastructure is insecure land tenure or property rights. The third paper explores whether alleviating this impediment through a program providing land titles in rural Peru is associated with improvements in water access. Utilizing the phased in timing, I exploit the differences in project implementation timing between households that held property titles prior to the project and those that did not. Results indicate that land titling is associated with increases in water access. Supporting evidence suggests that either the government or a utility might be responsible for the improvements.

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16

Rojko, Christine. "Solar disinfection of drinking water." Link to electronic thesis, 2003. http://www.wpi.edu/Pubs/ETD/Available/etd-0423103-124244.

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17

Plummer, Judith Kate. "Assessing the effects of pre-construction delay in hydropower projects." Thesis, University of Cambridge, 2014. https://www.repository.cam.ac.uk/handle/1810/283946.

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18

Makaya, Eugine [Verfasser]. "Water loss management strategies for developing countries : Understanding the dynamics of water leakages / Eugine Makaya." Kassel : Universitätsbibliothek Kassel, 2016. http://d-nb.info/1112580042/34.

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19

Billings, Richard. "An evaluation of the relative importance of technical and non- technical factors which affect water and sanitation projects in developing countries." Thesis, Virginia Tech, 1989. http://hdl.handle.net/10919/44109.

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Technical factors, such as engineering and medical approaches, and non-technical factors, such as education and community participation, were evaluated with regard to how they affect water and sanitation programs. Benefits and limitations of each factor were assessed to determine which limitations significantly impact the effectiveness of programs. With this appreciation of technical and nontechnical factors, case studies of control methods of different diseases were evaluated. This led to recommendations of appropriate mixes of technical and non-technical services for disease control. This evaluation was utilized to develop a planning approach to effectively integrate interagency efforts for the control of multiple diseases.
Master of Science

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20

Howard, Guy. "Effective approaches to water supply surveillance in urban areas of developing countries." Thesis, University of Surrey, 2002. http://epubs.surrey.ac.uk/1032/.

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21

Kelsey, Robert. "Cost reduction opportunities for low-income community water supplies in developing countries." Thesis, University of Newcastle Upon Tyne, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.316049.

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22

Low, Chian Siong 1978. "Appropriate microbial indicator tests for drinking water in Developing countries and assessment of ceramic water filters." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/84800.

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23

Newton, Jessica. "Improving access to drinking water in the developing world through guided household water treatment and storage technology selection." Thesis, Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/41224.

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Beginning at least as early as 1977, the international community formally recognized that drinking water and sanitation were not a reality for large percentage of the world and that it was necessary to take action to change this. Over the following three decades more actions and agreements were made, each with a progressively acute awareness of the requirements to achieve this goal and the failures of previous attempts. Poor information sharing and underestimation of cost were identified as two of the greatest recurring impediments. The Millennium Declaration made in 2000 is the newest campaign to move towards this goal, among others, and provides a metric against which progress and success can be measured. At this point, great success has been made overall towards the Millennium Development Goals. Millions of people have gained access to improved sources of drinking water and several regions have surpassed their goals. Unfortunately this progress is not homogenous and the definitions of success are misleading. Sub-Saharan Africa is lagging significantly behind due to water scarcity, large population growth, urban versus rural disparities, and slow growth of piped infrastructure. Limitations to the sector as a whole have been identified as logistics, funding limitations, inadequate cost recovery, and inadequate operations and maintenance. Additionally, the metric of access to an "improved" source does not equate to safe drinking water and is not attached to sanitation improvements or overall health improvements. In further examining the financial aspects of achieving the goals, it is clear that there is a great deal of inconsistency. Many donors, whether public or private, international or local, are giving money to the development goals. But the money given is often not equivalent to the original commitment, not given to the countries with the greatest need, not given to the water and sanitation sector specifically, given in the form of loans which must be repaid, given to new large scale systems which are not always appropriate, or not sufficient to achieve the desired target. This makes it very difficult to achieve and sustain progress in the areas which have been difficult to reach thus far, including Sub-Saharan Africa. The need for progress toward safe water is clear from the perspective of health. Water is needed for hygienic practices, as well as consumption, and it is counterproductive to use water that is not clean. One of the leading causes of both death and disability worldwide is diarrheal disease which can largely be attributed to unsafe water. Studies have shown that there is a positive correlation between drinking water interventions and improved health outcomes, especially with increased proximity of the source, and for this reason there is an even greater need to tie the definition of success in improved water to overall health outcomes. It is also important that public health practitioners, engineers, and professionals from other related sectors work together to improve knowledge sharing and ultimately efficiency in achieving the goal of safe water for all. Point-of-use interventions are among the best approaches to delivering means of water treatment to unreached communities because they can be deployed much more quickly and easily than a traditional piped system, require less expertise, and reduce recontamination that may occur during transport and storage. Such technologies utilize a variety of mechanisms to address a range of contaminants and concerns. In order for any technology to be successful though, it must be accompanied by a method of safe storage as well as education, training, and continued external support. This information is synthesized in a technology selection guide, which attempts provide assistance in technology selection by addressing the immediate issue of water quality for the sake of health benefits, while also considering the context of the installation, the user preferences, the level of expertise of the implementers, the cost, operations and maintenance requirements, and common areas of failure. Simultaneously it allows for technologies to be compared so that the most appropriate technology may be chosen. The guide is marketed towards a non-technical audience with the intention of promoting knowledge sharing and serving as a translation between the developers of the treatment technology and those who implement it in developing countries.

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24

Summers, Robert James. "The potential of bucket bored wells for rural water supply in developing countries." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0025/MQ36850.pdf.

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25

Barde, Julia Alexa [Verfasser], and Günther G. [Akademischer Betreuer] Schulze. "The economics of water and sanitation supply in developing countries : an empirical investigation." Freiburg : Universität, 2016. http://d-nb.info/1119899036/34.

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26

Akinpelu, Ebenezer O. "Development of appropriate demand modelling procedure for water distribution systems in developing countries." Thesis, London South Bank University, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.367905.

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27

Forss, Jörgen. "Microbial treatment of textile wastewater applicable in developing countries." Doctoral thesis, Linnéuniversitetet, Institutionen för teknik, TEK, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-23507.

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28

Omar, Yahya Yussuf. "Risk management for drinking water supplies in developing countries : the influence of culture on water safety plans." Thesis, Cranfield University, 2013. http://dspace.lib.cranfield.ac.uk/handle/1826/8564.

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Consumption of unsafe water in developing countries results in considerable number of illnesses and deaths annually. The World Health Organization and the International Water Association are promoting the use of water safety plans (WSPs), a risk management approach aimed at attaining water safety. This study investigated how culture impacts on the implementation of WSPs in these countries. Combining interpretive and critical paradigms resulted in the choice of qualitative methodologies utilizing multiple-case studies. Cases from India, Uganda, and Jamaica are each embedded with three units of analysis: promoters of WSPs, water utilities and their customers. Thematic analysis of data generated from semi-structured interviews, field observations and documents revealed eleven cultural factors impacting on the implementation of WSPs. Analyses of these factors led to various groupings and the subsequent development of a taxonomy categorizing these factors as being either enabling, limiting, or neutral in relation to WSPs. Findings show all the limiting factors to be deviations from the values and principles on which they are built. The findings have also led to the development of a culturally adapted risk management framework. This four-step cyclical & iterative framework is designed to address the impact of culture on the implementation of WSPs. The implementation of WSPs will take time and will require continuous improvement to the process. The successful management of drinking water risks in developing countries will require a broad institutional approach and a concerted effort that involves institutions beyond the water utilities. As such, targeted recommendations are first made towards achievement of good governance. Activities that will lead to the embracement of WSP by stakeholders along with suggestions to attain its institutionalization are also put forward. Recommendations towards addressing negative cultural factors include suggestions on dealing with: pollution causing rituals, bettering storage related practices, addressing excessive water use in rituals, counteracting belief that water should be free, fighting corruption and improving compliance, changing deliver-first safety-later attitude, and improving knowledge management practices.

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29

Michaelides, Georghios. "Investigations into the quality of roof-harvested rainwater for domestic use in developing countries." Thesis, University of Dundee, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.264289.

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30

Helu, Ali Tuama. "Integrated water losses assessment and water balance study over arid and semi-arid basins located in developing countries." Thesis, Cardiff University, 2015. http://orca.cf.ac.uk/89385/.

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Climate change, population growth, and water resources crossing political boundaries are the main issues threating water allocation for agricultural, industrial and domestic uses in developing countries. Integrated water resources management developed in a sustainable manner is essential to allow future generations to meet their water needs. A lack of data in developing countries is the biggest problem that can hinder developing necessary understandings. The Tigris river basin is a prime example, not only because it is located in a developing country, but also due to its long history of armed conflicts and breakdown of law and care. Unstable situation makes data collection difficult, available data poor in quality and the measuring tools and methods rudimental. The insufficient data lead to the impact of the climate change on water resources to be not conclusively detrained. This study shows the climate change impacts through investigate the evapotranspiration (ET) changes over the years. Five potential evapotranspiration models have been studied and classified according to the complexity in terms of the number of variables. Choosing the most suitable ET model helped to fill and reconstruct gaps in historical data sets. The statistical downscaling model SDSM was used to predict the evapotranspiration changes for the next 100 years. Google Earth and 3DRoutBuilder helped to produce an entire river profile with a simple, good quality representation of river networks. That aid the run of the hydrodynamic model (ISIS -1D) which has been utilised to produce water levels and water flow information to establish a robust river losses and water balance assessment for a river. Planning of alternative water resources schemes on river basins located in Arid-Semi Arid region needs an assessment of the hydrologic/hydraulic behaviours of that river. In view of this, the thesis further explores the sustainability of water quantities of rivers based on generated climate scenarios and population increases.

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Mbashe, Mfundo. "Barriers to accessing water services in the Motherwell township." Thesis, Nelson Mandela Metropolitan University, 2010. http://hdl.handle.net/10948/1190.

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Access to adequate water and sanitation services in South Africa still remain a pipe dream for the millions who are trapped at the bottom of the class structures in the country. The poverty stricken communities living in Townships such as Motherwell, everyday long for water services infrastructure to be built in their places of residence. The costs of accessing water services also becomes a setback for many consumers in the area, this is after the infrastructure has been installed in their areas. The high unemployment rate plays an enormous role in many consumers not affording water services. Bureaucracy between the government department of Housing and the NMMBM also impedes delivery of water services for without formal housing, water and sanitation is impossible to be accessed within the households. The study revealed from the semi-structured interviews which were held with Mayoral Council official and Ward Councillors as well as with members of the communities NU 12 and 29 that access to adequate water services was not successful and satisfactory. The findings of the research demonstrate that the Municipality has a problem with retaining staff members in the portfolio of Infrastructure, Engineering, Electricity and Energy, which is the responsible department for providing water and sanitation services to the local inhabitants. This study was conducted from April 2009 to November 2009 and it was aimed at finding the Barriers to accessing water services in the Motherwell Township.

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Sutherland, John Paul. "The application of Moringa oleifera as a coagulant for water treatment in developing countries." Thesis, University of Leicester, 2000. http://hdl.handle.net/2381/30182.

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The focus of this study has been on the ability of crushed seed suspensions of the pan-tropical tree Moringa oleifera Lam. to clarify turbid waters. Information regarding the coagulant effect of the seeds was first published in 1979. Since then a number of studies have been carried out to establish the effectiveness and nature of the coagulant effect. These are reviewed. The coagulation effect has been attributed to water soluble, low molecular weight cationic proteins contained within the seed kernel. The mode of activity has been proposed to be charge neutralisation via the patch mechanism. In an attempt to further the understanding of coagulation behaviour, four water sources in Malawi and Zimbabwe have been examined. A modified theory of protein coagulation that involves a combined charge neutralisation and protein precipitation mechanism is presented. Further work required to fully determine the mechanism of activity is discussed. In order to establish whether seed solutions could be considered for use within continuous flow water treatment systems a pilot plant was designed and constructed in Malawi. Details of the design are presented. Studies undertaken over a three-year period demonstrated that, as a coagulant, seed solutions were effective. Subsequent to these trials, an evaluation of the efficacy of using seed solutions on an operational treatment works was undertaken. Factors that might be potential constraints to utilisation at this scale, for example seed processing and dosing solution preparation, were investigated. Although effective as a coagulant, it has been concluded that the use of powdered seed suspensions is not a viable option for large-scale applications. Amongst those constraints identified, problems with the preparation of dosing solutions, the potential for increasing Total Organic Carbon levels in treated water and regulatory issues are considered.

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Witte, Brandt. "Reforming urban water supply systems in developing countries : a case study of Conakry, Guinea." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/11145.

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Sjödin, Johanna. "Urbanization and poverty as determinants for private sector participation in the water sector." Thesis, Växjö University, School of Management and Economics, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:vxu:diva-1302.

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This study analyses whether urbanization and poverty have any importance for private sector participation (PSP) in the water sector, in developing countries. In the beginning of the 1990’s there was a surge in the interest of the private sector to participate in water and sanitation projects, after a long period of public dominance. There is a large need for investments since much of the population in developing countries does not have access to water and sanitation services and the demand is increasing. At the same time the water sector is prone to inefficiencies resulting from externalities and natural monopoly characteristics, and is therefore often highly regulated.

A negative binominal regression model is used for the analysis. The dependent variable is the number of water and sanitation projects with private sector participation in a country. The independent variables are population, GDP/capita, aid, debt, water resources, government effectiveness, degree of urbanization and degree of poverty. The main results are that urbanization is positively significant for PSP in the water sector, while poverty has no significant effect.

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Akbar, H. M. Delwar. "Accessibility of the urban water supply to the poor in developing countries : the case of Dhaka, Bangladesh /." [St. Lucia, Qld.], 2005. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe18725.pdf.

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Sanz, Fernández Àlex. "Water and clean energy services in developing countries: Regulation and evaluation of universal service policies." Doctoral thesis, Universitat de Barcelona, 2016. http://hdl.handle.net/10803/387430.

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In this thesis I analyze access problems to basic services like water and energy in developing countries. The objective of the thesis is to show how to improve access to water services and clean energies in rural communities of developing countries. In this regard, this tesis is composed by three papers. Two focused on analyzing the water sector in developing countries and one paper focused on analyzing the implementation of a program aimed to ease the substitution of wood by LPG (Liquefied Petroleum Gas) as a cooking fuel. In the first paper, the regulation of water provision in developing countries: coverage quality and prices, I develop a theoretical model aimed to analyze the optimal product line of a regulated utility facing competition from water vendors. The existence of water vendors forces the utility to release standpipes increasing the population with access to the service but reduces coverage. Regulation can mitigate this situation. In addition universal service policies for standpipes or the delegation of standpipes´ management to a different firm can reduce the coverage of the utility. Also, regulation can mitigate this situations. In the second paper, Community managed water systems: the case of Peru, I make a descriptive analysis of communal organizations providing water services in rural areas of Peru. In addition, I analyze empirically which are the determinants of their presence in Peru. I show that JASS (Juntas Administradoras de Servicios de Saneamiento) are an efficient mechanism to provide water services in rural areas, but they need support. My result show that homogeneous communities, in terms of maintaining the Minka tradition of the Inca Empìre and also in linguistic terms, are more prone to create JASS. In the third paper, LPG cook stoves in Peru: evaluation of the FISE program, I analyse the implementation of the FISE (Fondo de Inclusión Social Energético) program in Peru. I also analyze empirically its performance in terms of use of LPG stoves and its health benefits associated. In this sense, I show that discount vouchers are an efficient policy to increase the use of LPG, avoiding cross-subsidies, to increase the use of LPG stoves but this policy alone cannot reduce respiratory problems among beneficiaries. On the other hand, this policy reduces diarrhoeal problems. The main contributions, summarized by paper were: in the first paper I analyzed a theoretical model supposing that the water utility can use two technologies to provide water and faces competition from water resellers. I analyzed how the utility uses coverage, prices and quality to increase its profits. The main contribution of the second paper has been the analysis of JASS. As far as I know this is the first paper doing so. It is interesting to remark that municipalities lower than 2.000 population have to be served by JASS, but not all municipalities have created JASS. I analyzed the determinants for the creation of JASS in Peru. Finally, in the third paper I analyzed a policy aimed to increase the use of LPG as fuel for cooking purposes via offering discount vouchers for low income households. As far as I know this is an innovative policy in Latin American countries. In the paper, I have analyzed the implementation of the program, the problems faced during its implementation and also I analyzed empirically its performance.
En esta tesis se analizan los problemas de acceso a los servicios básicos como el agua y la energía en los países en desarrollo. El objetivo de la tesis es mostrar cómo mejorar el acceso a los servicios de agua y energías limpias en las comunidades rurales de los países en desarrollo. En este sentido, esta tesis se compone de tres papeles. Dos centrado en el análisis del sector del agua en los países en desarrollo y uno de papel centrado en el análisis de la implementación de un programa destinado a facilitar la sustitución de la madera por GLP (Gas Licuado de Petróleo) como combustible para cocinar. En el primer documento, la regulación del suministro de agua en los países en desarrollo: la calidad de la cobertura y los precios, se desarrolla un modelo teórico tuvo como objetivo analizar la línea de productos óptima de un servicio público regulado frente a la competencia de los vendedores de agua. La existencia de los vendedores de agua obliga a la energía para dar tomas de agua cada vez mayores de la población con acceso al servicio, pero reduce la cobertura. La regulación puede mitigar esta situación. Además políticas de servicio universal para tomas de agua o la delegación de la gestión standpipes' a una empresa diferente pueden reducir la cobertura de la utilidad. Además, la regulación puede mitigar estas situaciones. En el segundo artículo, los sistemas de agua comunitaria logró: el caso de Perú, hago un análisis descriptivo de las organizaciones comunales que prestan los servicios de agua en las zonas rurales de Perú. Además se analizan empíricamente cuáles son los factores determinantes de su presencia en Perú. Muestro que JASS (Juntas Administradoras de Servicios de Saneamiento) son un mecanismo eficiente para proporcionar servicios de agua en las zonas rurales, pero que necesitan apoyo. Mi resultado muestra que las comunidades homogéneas, en cuanto al mantenimiento de la tradición Minka del Imperio Inca y también en términos lingüísticos, son más propensos a crear JASS. En el tercer artículo, estufas de cocción GLP en Perú: evaluación del programa FISE, que analizan la ejecución del programa FISE (Fondo de Inclusión Social Energético) en el Perú. También se analizan empíricamente su desempeño en términos de uso de cocinas de GLP y sus beneficios para la salud asociados. En este sentido, se muestra que los vales de descuento son una política eficiente para aumentar el uso de GLP, evitarán las subvenciones cruzadas, para aumentar el uso de estufas de LPG pero esta política por sí sola no puede reducir los problemas respiratorios entre los beneficiarios. Por otra parte, esta política reduce los problemas de diarrea. Las principales contribuciones, resumidas por el papel son: en el primer documento analizaba un modelo teórico suponiendo que la empresa de agua se puede utilizar dos tecnologías para proporcionar agua y se enfrenta a la competencia de los distribuidores de agua. He analizado cómo la utilidad utiliza cobertura, precios y calidad para aumentar sus beneficios. La principal contribución del segundo documento ha sido el análisis de JASS. Por lo que yo sé que este es el primer documento de hacerlo. Es interesante destacar que los municipios menores de 2.000 habitantes tienen que ser servido por JASS, pero no todos los municipios han creado JASS. He analizado los factores determinantes para la creación de JASS en el Perú. Por último, en el tercer artículo analizaba una política destinada a incrementar el uso de GLP como combustible para cocinar a través de ofrecer cupones de descuento para los hogares de bajos ingresos. Por lo que yo sé que esto es una política innovadora en los países latinoamericanos. En el trabajo he analizado la ejecución del programa, los problemas que enfrentan durante su ejecución y también analizan empíricamente su rendimiento.

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37

Nanbakhsh, H. "Environmental impact assessment of potable water supply and sanitation in rural areas of developing countries." Thesis, University of Salford, 1993. http://usir.salford.ac.uk/14669/.

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The main objective of the present research was to assess the environmental impacts of the provision of potable water supplies and sanitation projects, both during the construction and operation phases. The research was related to rural areas of developing countries. Field research was undertaken in the rural areas of the Northwest and Central regions of Iran. Data were obtained by observations and survey from the field, and a comprehensive questionnaire and literature review. Interviews were carried out by the author in households, particularly women, in four villages with a piped water supply and sanitation facilities, and four villages without such facilities, in the two different regions. To assess the beneficial and negative impacts stemming from the projects, Environmental Impact Assessment (EIA) techniques were used. After the application of EIA through the use of checklist of impacts and the Leopold's matrix, results demonstrated that the implementation of water supply and sanitation projects can have several negative impacts on the natural environment, and positive beneficial impacts on the social and economic environment. In relation to water supply and sanitation projects, the most effective EIA method was shown by this study to be the Leopold's matrix. It can identify both positive and negative impacts and the interaction between the project activities and environmental parameters. The most important recommendations that stem from this research are, that project planners and water engineers should employ EIA methods in planning water projects, particularly in the rural areas of developing countries.

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Doe, Steve R. K. "Sustainability of community water management in small towns of developing countries : case studies from Ghana." Thesis, Loughborough University, 2003. https://dspace.lboro.ac.uk/2134/35548.

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This thesis investigated the sustainability of community water management in small towns of developing countries by using case studies from Ghana. Sustainability is investigated as a multi-faceted concept encompassing technical, managerial, institutional and organisational issues. The study is particularly relevant because over one billion of the world's population lacks access to safe drinking water with resultant poverty, morbidity and mortality among the World's most vulnerable, a significant proportion of who live in small towns of developing countries. Small town dwellers are likely to increase thus exacerbating the existing situation of poor sustainable water services. Efforts at providing solutions, largely through the public sector, were found to be ineffective and inefficient. Consequently, many governments have adopted community management a key paradigm for rural water supply and sanitation for small towns. The thesis however, hypothesises that community management is limited in achieving sustainable water supply solutions in small towns; hence modifications are needed in approach to the issues of small-town water supply.

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Roma, Elisa. "Evaluation of WATSAN technologies in developing countires : development and testing of a diagnostic tool." Thesis, Cranfield University, 2010. http://dspace.lib.cranfield.ac.uk/handle/1826/5444.

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For decades the problems of access to and sustained use of water and sanitation (WATSAN) technologies in developing countries has dominated the political agendas of international organisations and governments. Despite the significant investments made and the apparent appropriateness of technologies transferred, the effective implementation and sustained use of WATSAN technologies remains a chimera. More importantly, improving access to water and sanitation does not necessarily guarantee the longevity of those systems transferred. Lessons from past interventions suggest that the success of WATSAN interventions depends on the ability of ensuring users‟ broad acceptance of the technologies and sustained used after donor assistance ends. Yet, in the academic literature users‟ feedback and experiences in the post-implementation stage of technologies has received scarce attention. Against this background, this thesis aims to contribute to understanding the dynamics involved in the process of WATSAN technology adoption and sustained use in developing countries by reporting the design and evaluation of a diagnostic post- implementation tool, called RECAP, to address and investigate the problem. This research employs a multiple case study approach to evaluate users‟ post-implementation experience of WATSAN technologies in South Africa and Indonesia. Semi-structured interviews with technology users as well as in depth interviews with local governments and health clinics were conducted in three case studies. By comparing and contrasting technology intended performance and users‟ experiences in the post-implementation stage this study aims to identify potential challenges to technology sustained used. Conclusions relate to the existence of discrepancies between performance and experience, manifested in the post-implementation stage, which suggest the necessity to develop evolving mechanisms to routinely assess users‟ feedbacks of the technologies and assist them with appropriate interventions. Further conclusions relate to the validity, reliability and flexibility of a post-implementation diagnostic tool in investigating user experiences, diagnosing emerging challenges and suggesting remedial intervention to contribute to sustained technology use.

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Harun, Ibrahim. "The impact of privatisation of water supply and services on the fulfilment of human water rights in selected developing countries." Thesis, University of the Western Cape, 2010. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_5157_1367483357.

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41

Kojima, Satoshi. "Quantitative policy analysis for sustainable development in water-stressed developing countries : a case study of Morocco." Thesis, University of York, 2005. http://etheses.whiterose.ac.uk/10963/.

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Shinde, Prapti. "Estimation of Number of People Living in Developing Countries that Received Water from a Spring Source." Scholar Commons, 2019. https://scholarcommons.usf.edu/etd/7940.

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In the year 2000, 170 countries decided to stand together and solve some primary and common global problems like poor health, water, and sanitation. Obtaining access to safe drinking water is every individual’s right. The UN defines safe drinking water as “the water required for each personal or domestic use must be safe, therefore free from micro-organisms, chemical substances and radiological hazards that constitute a threat to a person's health” (UNDESA, 2014). This thesis focuses on identifying the number of people who potentially receive spring water from a piped source in rural mountainous areas. There are three significant steps and data requirements which are necessary to meet this study’s objective. These are to: 1) obtain data classifying the various sources of drinking water in each country by specifying the percentage of population served by a particular water in rural and urban areas, 2) determine the number of countries which are undeveloped or developing, and 3) identify specific countries which are defined as mountainous (and thus likely to have spring fed piped water systems) based on elevation and slope in order to estimate the number of people living in mountainous areas. Results show that 183.54 (million) people were estimated to receive piped water from the springs in mountainous areas. Approximately, 34% of the population is from the Eastern Asia and South-Eastern Asia regions, and 33% reside in the Latin America and Caribbean Islands. These were followed by Western Asia and North Africa Regions with 15% and Central Asia and Southern Asia Regions with 14% of their population estimated to receive piped spring water.

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Green, Wendy Cheryl. "Environmental performance assessment of a microfiltration technology - the Sky Juice water treatment unit - for developing countries." Thesis, Green, Wendy Cheryl (2004) Environmental performance assessment of a microfiltration technology - the Sky Juice water treatment unit - for developing countries. Honours thesis, Murdoch University, 2004. https://researchrepository.murdoch.edu.au/id/eprint/38398/.

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One billion people, mostly in developing countries do not have access to safe drinking water and water treatment is often required due to pollution of water sources. A low cost membrane technology, the Sky Juice, can remove turbidity, bacteria and parasites from water. The objectives of the project were to verify the Sky Juice technology performance and also determine if it was a suitable environmentally sound technology in comparison to alternative disinfection methods. For verification of the Sky Juice technology, laboratory examination of clay and algae turbidity removal by three Sky Juice units as well as bacterial removal by another three Sky Juice units were conducted. Control and membrane fault tests were also performed using deionised water and the bubble point test. The Environmentally Sound Technology - Performance Assessment (EST-PA) was used to assess the Sky Juice, chlorine disinfection (by Calcium Hypochlorite) and SODIS technologies in detail. The EST-PA was still under development by the United Nations Environment Program. EST-PA proposed criteria and indicators were used with some suggested changes to analyse the technologies. To compare the technologies and make EST-PA operational, a rating system was incorporated. Field verification information from Laos was collected as a last stage in EST-PA to validate the technical assessment and determine if the Sky Juice was suitable and socially accepted in field conditions. The Sky Juice performance met manufacturer's claims and World Health Organisation guidelines always after five minutes of use since cleaning the membrane. Within the first five minutes, small clay particles passed through the 0.2μ membrane giving slightly higher turbidity readings. Four out of six Sky Juice units tested had several faulty membrane fibres. Due to these faults bacteria removal could not be confirmed in the first five minutes of use of the Sky Juice but past experience showed complete removal by intact membranes on larger systems. It is recommended that simple bubble point tests to check for faults before delivery and installation of the technology. The Sky Juice was found to be the most environmentally sound technology and suitable for low virus risk areas, whilst chlorine disinfection could be suitable but had higher environmental impacts. The SODIS technology still performed well in environmental performance but was mainly suitable for warmer and lower rainfall climates. Field verification showed that Sky Juice was socially acceptable and suitable for use in a rural village in the mountains of Laos.

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Bowler, Stephen James. "The basic needs approach to development : a case study of rural water supply in Kenya." Thesis, University of British Columbia, 1987. http://hdl.handle.net/2429/26785.

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The meeting of the basic needs of people, particularly the poor, has come to be an important focus of rural development efforts in the Third World. This is largely due to the realization that the benefits of previous development efforts have not reached the poor. The basic needs concept of development places the focus on the ends of development. This means a direct attack on poverty through meeting the basic human requirements of the neediest segment of society, the poor. There are two approaches that can be taken when one adopts the basic needs concept as the theoretical framework for a project. The first is a top down effort concerned with satisfying basic needs as quickly as possible and is referred to in this thesis as a technocratic approach to meeting basic needs. The second is concerned with developing a sustainable project based on the community so that it can continue to meet its basic needs and is referred to in this thesis as a community development approach to meeting basic needs. The purpose of this thesis is to identify those elements in the planning process that contribute to the success of efforts to meet basic needs in developing countries. Success is defined as the meeting of immediate and long term water needs leading to improvements in health, economic and social conditions of communities. To accomplish this objective a literature review of efforts to meet the basic need of water is undertaken. The focus is on identifying elements found in the literature, dominated by advocates of the community development approach to meeting basic needs, which contributed to the success of rural water supply projects in providing an adequate supply of water to the poor. These success elements can be grouped in the following five categories: appropriate knowledge; appropriate technology; appropriate institutions; appropriate support; and community participation. The assumption articulated by most writers is that each of these five elements is an essential part of a community development approach to meeting basic needs. There is very little in the literature on the technocratic approach, yet it is used in practice. A case study of a rural water supply project in Kenya, East Africa, which used a technocratic approach, was undertaken with the expectation that it would show a lack of success because of its failure to include the five elements of the community development approach. In fact, the project was found to be a success. However, the study did reveal that the planners involved in the project now believe that, for the long run sustainability of the project, it is vital to make the five elements of the community development approach an essential part of the project. The main conclusion of the thesis is that a project using a technocratic approach to meeting basic needs can succeed in the short run but that for this project to continue to be successful there comes a point where the elements assumed to be part of the community development approach to meeting basic needs must be included.
Applied Science, Faculty of
Community and Regional Planning (SCARP), School of
Graduate

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45

Kolsky, Peter Jonathan. "Performance-based evaluation of surface water drainage in developing countries : a case study in Indore, Madhya Pradesh." Thesis, London School of Hygiene and Tropical Medicine (University of London), 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.299461.

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46

Bair, Robert Alonso. "Development of a Decentralized and Off-grid Anaerobic Membrane Bioreactor (AnMBR) for Urban Sanitation in Developing Countries." Scholar Commons, 2016. http://scholarcommons.usf.edu/etd/6174.

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Urbanization has led to rapid and uncontrolled growth of informal housing settlements in many developing countries. As most slum growth is unplanned, these areas tend to lack basic infrastructure including sanitation. The high user rates, lack of water and electricity infrastructure, space limitations, and scant financial resources make sanitation provision a major challenge in slums. As most decentralized sanitation technologies fail when applied in these environments, better technologies need to be developed that cater to the specific needs of slum dwellers. One promising technology, the membrane bioreactor (MBR) is routinely used in developed countries when a compact and resilient treatment system is required. However, the energy requirement of existing MBRs is high, as most are aerobic systems which require aeration. Anaerobic MBRs (AnMBR), which do not require aeration, have led to an improvement of the energy profile of MBRs. As research into the technology is still in its infancy, little is known regarding its applicability in high-density urban environments. This body of research is aimed at understanding the AnMBR’s treatment performance and overall reliability in challenging circumstances similar to those encountered in slums. The appropriateness of an AnMBR was investigated with pilot and full-scale systems treating real wastewater in field conditions. The first investigation, discussed in Chapter 3, was used to determine the resilience of AnMBR treatment when subjected to periods of disuse and high fluctuations in incoming feed strengths. Decentralized systems often see much higher variations in feed composition than centralized systems as they lack large collection systems which homogenize the influent wastewater. Depending on the application, periods of low and no flow are also possible. During this long-term study it was observed that the membrane served an important role in controlling the effluent quality, especially when environmental conditions and feed characteristics varied so significantly as to upset biological stability. The system achieved an average COD removal efficiency of 88.2% throughout the study. It was also observed during this study that the system had higher removal efficiencies when treating higher COD concentrations. Higher strength wastewaters can routinely be found in decentralized applications where dilution water is minimal. These locations include water-efficient buildings, direct coupling to public toilets, and fecal sludge treatment plants. It was also found that the AnMBR was capable of rapidly recovering from extended periods of disuse. This ensures that the AnMBR can be applied to areas, such as schools and hotels that experience large seasonal variations and periods of disuse. The second investigation, described in Chapter 4, examined how fluctuations in ambient temperatures affect fouling resistance. In small decentralized applications, operating the reactor at ambient temperatures is the most likely scenario, as controlling the reactor temperature would incur a high energy demand. Operating at ambient temperatures means that variations can be high, and that temperatures can drop below ideal ranges. Temperature is known to affect biological treatment and to a lesser extent membrane filtration, but the interactions between the two are not fully understood. To determine the effect of temperature on operation, a pilot scale AnMBR was used to treat wastewater with fluctuating ambient temperatures. Three trials were conducted during summer and winter conditions, as well an artificially heated period. It was found that membrane permeability can be greatly affected by operating temperature but its effect varied depending on the fouling state of the membrane. Virgin, or recently cleaned membranes were not affected by low temperatures, while the permeability of slightly fouled membranes was negatively correlated to changes in temperature. When slightly fouled, a membrane TMP could increase by 2.4 times with a 10oC drop in temperature. The magnitude of the TMP increase could not be explained by changes in water viscosity alone. The effect of temperature on TMP decreased when fouling became severe and normal operating pressures were high. These results suggest that seasonal adjustments to AnMBR operation would be necessary to prevent sharp and excessive increases in operational TMP during cold spells. Chapter 5 investigated the feasibility of recovering water, nutrients, and energy in an off-grid and decentralized AnMBR. This investigation performed an energy, nutrient, and mass balance for a theoretical AnMBR treating water from a public toilet in a high density setting. What was concluded from this study is that complete water recycling can be accomplished in such an environment. Onsite water recycling would allow the system to be applied in arid urban areas as well as places lacking regular water provision. The study also concluded that the energy content of wastewater in a high density area would be sufficient to power an AnMBR and electronic toilet. For areas where low wastewater strengths would be expected, food waste addition to the wastewater would improve the energy profile of the system. As many urban areas of developing countries struggle with solid waste management, there is the opportunity to link food waste management with wastewater treatment. This study also highlighted the potential problems that ammonia and salinity buildup could have on a system that achieves complete water recycling. Once the system specifically designed for urban areas was deemed theoretically feasible, a full-scale, solar-powered, prototypical system was constructed in Florida and tested in India (Chapter 6). This system, which was applied in Kerala, India, was investigated for its treatment and membrane performance as well as energy consumption. During the first four months of operation, the system was able to produce high quality product water that could be used for toilet flushing. This was achieved despite the low strength of the incoming feed water and higher than anticipated wastewater production rates. The wastewater strength was low due to the system’s application in a school setting and high levels of dilution water. The reliance on multiple anti-fouling mechanisms allowed the system to operate for 4 months without a significant change in TMP. The average energy consumption per unit of produced water depended on the amount of water treated per day. On average the energy consumption was 1.52 kWh/m3, but that value dropped to 0.83 kWh/m3 when volumes greater than 200 liters were treated per day. The lowest value measured during this trial was 0.16 kWh/m3 when 1,394 liters were produced. All of the energy used by the system was produced by onsite photovoltaics, with minimal carbon footprint. While the system was capable of meeting the water demand of the toilet system, further improvements in the energy demand of the system will be necessary to make the system more cost-effective, robust and reliable. These results suggest that AnMBRs can be applied in high density urban areas for the dual objectives of wastewater treatment and resource recovery. Their reliable treatment in the face of large fluctuations in feed concentration, volume, and temperature suggests they are appropriate for decentralized applications. Membrane filtration allows water to be reliably recycled onsite with minimal operator oversight. The low energy requirements of the system allow for onsite renewable energy sourced, such as photovoltaics to be used to power the system. AnMBRs are able to address many of the challenges that traditional sanitation technologies cannot, which makes them a promising technology to address the problems encountered in slum sanitation.

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47

Dennis, Gilbert J. "Community drinking water fluoridation in the Southern Cape and Karoo Region: a feasibility study." Thesis, University of the Western Cape, 2002. http://hdl.handle.net/11394/4600.

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Magister Scientiae Dentium - MSc(Dent)
The prevalence of dental decay is high among lower socio-economic groups in the Southern Cape and Karoo region. 70 - 80% of State employed dentists' time in this region is spent on attempting to reduce the pain and sepsis within the communities for which the primary treatment modality is extraction of the tooth under emergency conditions. In developing countries the prevalence of dental decay is still high. There is a general downward trend of dental decay in developing countries; and it is associated with combinations of exposure to fluoridated water and/ or other forms of fluoride exposure (e.g. in fluoridated tooth paste), the provision of preventive oral health services, an increase in dental awareness through organized oral health education programs and the readily available dental resources. This study looked at the feasibility of implementing community water fluoridation in the Southern Cape and Karoo Region by describing the primary drinking water sources, the population distribution around these sources and the actual levels of fluoride found in the water samples. Each sample was coded and with the use of a global positioning system (GPS), a set of co-ordinates obtained for each. Other options with regard to fluoride supplementation were explored as an attempt to provide an alternative intervention option for exposure to fluoride where community drinking water fluoridation was not the first option. This information will be used to record and update existing tables for fluoride levels in community drinking water of the communities in the Southern Cape and Karoo region that is currently used as a guide for prescribing fluoride supplementation as a means of prophylaxis for the prevention and reduction of dental decay. This study re-iterated the diverse set of variables that communities living in rural areas have to live with. It supports the trend that in developing countries the DMFT (12 years) and dmft (6 years) are higher than those in the same age cohorts of developed countries. This study shows that the fluoride level in borehole water is generally higher than that of dams or reservoirs. Fluoride supplementation is required in the bigger, densely populated areas as the fluoride levels of the water in these areas are below optimal and their water systems can accommodate fluoridation. The long term gains of community water fluoridation at optimal levels for entire communities by far out way the risk of developing fluorosis at above optimal levels. There needs to be a systematic review of treatment needs and treatment modalities for each community so that at some point the need for prevention strategies will be sought out by program managers as best practice for improving the general health (i.e. and oral health) of their communities. There is no single approach for solving issues in communities with different sets of variables determining their needs and so too to the question of community water fluoridation. The recommendation is that at the community level (i.e. the communities should be empowered to do their own situational analysis and prioritize their needs) people need to make decisions for themselves with regard to the type of preventive strategy that they implement. Once they have the data and an intervention option is arrived at, they should lobby with their local health provider to implement that intervention option (e.g. Exposure to fluoride as a means of improving dental health) that they have identified in their towns or villages.

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48

Saavedra, Pablo A. "A study of the impact of decentralization on access to service delivery." Diss., Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/37265.

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This research builds further on the existing conceptual framework of the relationship between decentralization and service delivery and provides a cross-country empirical examination of the core dimensions of decentralization reform on access to two key services: health care and improved drinking water sources. The regression results provide evidence supporting positive and significant effects of fiscal, administrative, and political decentralization, individually, on the variables used to measure access to health care, and improved water provision; although the size and robustness of such effects varies for each dimension of decentralization in relation to each service examined. The results obtained in this study suggest that there is an additional (or "extra") positive effect coming from the interaction of two decentralization dimensions on access to health care and water services (that is, a mutually-reinforcing effect additional to the individual effect of each dimension of decentralization). The results obtained also support the expectation that developing countries could benefit significantly more from decentralization reforms compared to developed countries. These findings underscore the importance of considering all dimensions of the decentralization process when investigating the effects of this reform on any economic, institutional, or social variable. The policy implications are highly relevant, particularly for developing countries: decentralization implemented only through one dimension may render fewer positive fruits in terms of access to services than a multi-dimensional approach. Moreover, learning more about the most beneficial mutually-reinforcing effects across dimensions of decentralization may also help strategically in how the overall decentralization reform is designed.

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49

Saavedra, Pablo A. "A Study of the Impact of Decentralization on Access to Service Delivery." Digital Archive @ GSU, 2010. http://digitalarchive.gsu.edu/pmap_diss/40.

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This research builds further on the existing conceptual framework of the relationship between decentralization and service delivery and provides a cross-country empirical examination of the core dimensions of decentralization reform on access to two key services: health care and improved drinking water sources. The regression results provide evidence supporting positive and significant effects of fiscal, administrative, and political decentralization, individually, on the variables used to measure access to health care, and improved water provision; although the size and robustness of such effects varies for each dimension of decentralization in relation to each service examined. The results obtained in this study suggest that there is an additional (or "extra") positive effect coming from the interaction of two decentralization dimensions on access to health care and water services (that is, a mutually-reinforcing effect additional to the individual effect of each dimension of decentralization). The results obtained also support the expectation that developing countries could benefit significantly more from decentralization reforms compared to developed countries. These findings underscore the importance of considering all dimensions of the decentralization process when investigating the effects of this reform on any economic, institutional, or social variable. The policy implications are highly relevant, particularly for developing countries: decentralization implemented only through one dimension may render fewer positive fruits in terms of access to services than a multi-dimensional approach. Moreover, learning more about the most beneficial mutually-reinforcing effects across dimensions of decentralization may also help strategically in how the overall decentralization reform is designed.

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50

Verbyla, Matthew Eric. "Assessing the Reuse Potential of Wastewater for Irrigation: The Removal of Helminth Eggs from a UASB Reactor and Stabilization Ponds in Bolivia." Scholar Commons, 2012. http://scholarcommons.usf.edu/etd/4414.

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Extreme hunger, malnutrition, and the lack of access to sanitation are among the most pressing development challenges, but the world is not on track to meet the targets that have been established by the Millennium Development Goals. The integration of wastewater treatment and food production systems allows for the recovery of resources from wastewater, and can provide an important solution to meet the sanitation needs of growing urban populations and provide periurban farmers with a consistent supply of water and nutrients. Stabilization ponds have been long considered to be an appropriate technology for wastewater reuse systems in developing countries, but advanced anaerobic treatment technologies, such as upflow anaerobic sludge blanket (UASB) reactors, are also becoming common. The objective of this study is to evaluate the reuse potential of wastewater for irrigation from two community-managed treatment systems in Bolivia: one consisting of three stabilization ponds in series (three-pond system) and the other consisting of a UASB reactor and two stabilization ponds in series (UASB-pond system). Specifically, the removal of helminth eggs and thermotolerant coliform bacteria is measured in both systems and evaluated with respect to the World Health Organization (WHO) guidelines for the safe use of wastewater in agriculture, which are based on health targets. Results indicate that both systems provide good removal of conventional water quality parameters but poor removal of nutrients, discharging effluents with 37 to 54 mg/L of total nitrogen and 5.7 to 9.4 mg/L of total phosphorus. The three-pond system provided >92% removal of helminth eggs and 3.4-log removal of thermotolerant coliforms, and no geohelminth eggs were detected in the system effluents. However, Ascaris eggs were detected in the effluents of the UASB-pond system and the overall removal of thermotolerant coliforms was only 2.3 log units. Viability estimates based on the use of a vital stain indicate that eggs detected in pond effluents are less likely to be viable than eggs detected in the raw wastewater, in the sludge, or in the effluent of the UASB reactor. Sludge samples from the facultative pond in the three-pond system had higher concentrations of helminth eggs than sludge samples from the UASB reactor. Based on these results, the effluents from the three-pond system can be reused for irrigating any crop with the exception of root crops and low-growing crops that can be consumed raw (i.e. onions and strawberries). Effluents from the three-pond system may be used to irrigate salad crops or high-growing crops that are consumed raw, but additional public health interventions must be implemented throughout the food production process to meet WHO recommendations for protecting the health of farmers and consumers. The effluents from the UASB-pond system should not be reused unless improvements to the system increase its pathogen removal efficiency. The results from this study indicate that a system consisting of stabilization ponds in series may produce a higher quality effluent that is more suitable for wastewater irrigation than a system with a UASB reactor.

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