Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
URBAN WATER SUPPLY SYSTEM PERFORMANCE ASSESSMENT (THE CASE OF HOLETA TOWN, ETHIOPIA)
Problems in providing satisfactory water supply to the rapidly growing population especially that of the developing countries is increasing from time to time. The adequate and reliable water supply in developing towns of Ethiopia is becoming a challenge for most water utilities. The objective of this research was to assess the problem of Holeta town water supply and distribution system. This study assessed the performance of Holeta town water supply system based on main performance indicators namely high water loss, water quality, inadequate water supply coverage, satisfaction of customers and operation and maintenance. The distribution system is evaluated by running the system of water supply by GEMS V8i.The water samples were collected from all existing water sources, reservoirs, collection chambers and household taps and water quality test was conducted for water quality parameters namely Total dissolved solid, residual chlorine, coli form, hardness, turbidity and PH. Field observations were made to gather data and observe the water supply system has high water loss, water quality problem, inadequate water supply coverage, satisfaction of customers and operation and maintenance problems on site. The result showed that water loss was found to be 13.39%. The water supply coverage was very low which covers only 52.57%. Besides water demand and supply of Holeta town were not balanced, the water quality tests showed poor water quality result when compared to the standard set on the Ethiopian (National) and WHO Water Quality standards. Hence, it can be concluded that there is operation and maintenance problem and the water supply system performance is low. Holeta Water supply office should gather the X, Y, coordinates of its Water supply distribution system from source to customer water meters to know and evaluate hydraulic system using Water GEMS with GIS integrated software, for more precise and faster way of in demand allocation. it needs to be documented in a well-organized way .In general ,All relevant documents, feasibility studies, Bore Hole history, manufacturer manuals and detail designs, as built drawings of all existing water supply system components for the sources, reservoirs, pump houses etc need to be documented in a well-organized way and should be available in the water utility office for future reference is strongly recommended.
URBAN WATER SUPPLY SYSTEM PERFORMANCE ASSESSMENT (THE CASE OF HOLETA TOWN, ETHIOPIA)
Problems in providing satisfactory water supply to the rapidly growing population especially that of the developing countries is increasing from time to time. The adequate and reliable water supply in developing towns of Ethiopia is becoming a challenge for most water utilities. The objective of this research was to assess the problem of Holeta town water supply and distribution system. This study assessed the performance of Holeta town water supply system based on main performance indicators namely high water loss, water quality, inadequate water supply coverage, satisfaction of customers and operation and maintenance. The distribution system is evaluated by running the system of water supply by GEMS V8i.The water samples were collected from all existing water sources, reservoirs, collection chambers and household taps and water quality test was conducted for water quality parameters namely Total dissolved solid, residual chlorine, coli form, hardness, turbidity and PH. Field observations were made to gather data and observe the water supply system has high water loss, water quality problem, inadequate water supply coverage, satisfaction of customers and operation and maintenance problems on site. The result showed that water loss was found to be 13.39%. The water supply coverage was very low which covers only 52.57%. Besides water demand and supply of Holeta town were not balanced, the water quality tests showed poor water quality result when compared to the standard set on the Ethiopian (National) and WHO Water Quality standards. Hence, it can be concluded that there is operation and maintenance problem and the water supply system performance is low. Holeta Water supply office should gather the X, Y, coordinates of its Water supply distribution system from source to customer water meters to know and evaluate hydraulic system using Water GEMS with GIS integrated software, for more precise and faster way of in demand allocation. it needs to be documented in a well-organized way .In general ,All relevant documents, feasibility studies, Bore Hole history, manufacturer manuals and detail designs, as built drawings of all existing water supply system components for the sources, reservoirs, pump houses etc need to be documented in a well-organized way and should be available in the water utility office for future reference is strongly recommended.
URBAN WATER SUPPLY SYSTEM PERFORMANCE ASSESSMENT (THE CASE OF HOLETA TOWN, ETHIOPIA)
RATA FIKADU AYALA (Autor:in) / Brook Abate (PhD) (Autor:in)
01.01.2018
doi:10.20372/nadre:1548584445.06
Hochschulschrift
Elektronische Ressource
Englisch
DDC:
690
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