Global ETD Search

1	A Survey of Point of Use Household Water Treatment Options for Rural South India Jeffreys, Kendralyn G 06 January 2012 (has links) Contaminated drinking water is one of the major health challenges facing people in the developing world. The country of India leads the world in under age five mortality due to diarrheal disease, which is attributed to water and food contamination. While the Indian government has made progress in expanding access to improved water sources in the last decade, the microbiological quality of the water is unpredictable. Point of use household water treatment systems can provide clean drinking water for people who do not have access to a clean water source. This report examines five non-electrical point of use household water treatment options which have been extensively field-tested and could potentially be used in rural, South Indian villages: chlorine disinfectant, chlorine-flocculant sachets, ceramic filters, biosand filters and solar disinfection. A case study of a village in Andhra Pradesh is presented that highlights the factors to consider when introducing a new POU technology into a community. biosand filters point of use India household water treatment Public Health
2	Biosand Water Filter Evaluation: Pilot Study of Field Use Indicators in Cyegera, Rwanda O'Connell, Bethesda, Slawson, Deborah, Quinn, Megan, Scheuerman, Phillip R., Ogunleye, Olushola 27 August 2018 (has links) Diarrheal diseases are a global public health burden, killing 1.8 million people annually. Diarrhea disproportionately affects children and those in poverty. Most diarrheal cases can be prevented through safe drinking water, basic hygiene and/or sanitation measures, with drinking water interventions having the most impact on reducing diarrheal disease. There is no generally agreed-upon field method for determining biosand water filter effectiveness that is usable in low-resource communities. A pilot study was conducted of potential field use indicators, including the Colilert coliform presence/absence (P/A) test, hydrogen sulfide, alkalinity, hardness, pH, and fluorescently labeled latex microspheres. The study included both laboratory and field testing. The Colilert P/A test had the highest correlation to the United States Environmental Protection Agency standard method (IDEXX Quanti-trays), but more data are needed before making a recommendation. This study adds to understanding about evaluation of biosand water filters and provides preliminary data to address the need for a field use indicator for biosand water filters. biosand filters diarrhea household water treatment WASH Environmental Health Environmental Public Health
3	Biosand Water Filter Evaluation: Pilot Study of Field Use Indicators in Cyegera, Rwanda O'Connell, Bethesda, Slawson, Deborah, Quinn, Megan, Scheuerman, Phillip, Ogunleye, Olushola 01 September 2018 (has links) Diarrheal diseases are a global public health burden, killing 1.8 million people annually. Diarrhea disproportionately affects children and those in poverty. Most diarrheal cases can be prevented through safe drinking water, basic hygiene and/or sanitation measures, with drinking water interventions having the most impact on reducing diarrheal disease. There is no generally agreed-upon field method for determining biosand water filter effectiveness that is usable in low-resource communities. A pilot study was conducted of potential field use indicators, including the Colilert coliform presence/absence (P/A) test, hydrogen sulfide, alkalinity, hardness, pH, and fluorescently labeled latex microspheres. The study included both laboratory and field testing. The Colilert P/A test had the highest correlation to the United States Environmental Protection Agency standard method (IDEXX Quanti-trays), but more data are needed before making a recommendation. This study adds to understanding about evaluation of biosand water filters and provides preliminary data to address the need for a field use indicator for biosand water filters. Environmental Health Geosciences Environmental Public Health
4	Implementation of Appropriate Technology to Treat Drinking Water in Rural Tanzania Pumphrey, Sarah Irene 19 September 2008 (has links) No description available. Adult Education Bilingual Education Demographics Environmental Engineering Epidemiology International Relations Teaching Technology Appropriate Technology Rural Tanzania Africa Developing Country Point of Use Water Treatment Biosand Filters Moringa oleifera Education

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