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Arba Minch University (2015)

PERFORMANCE ASSESSMENT OF RAIN WATER HARVESTING BIRKAS : - THE CASE OF KEBRIBEYAH WOREDA OF SOMALI REGION, ETHIOPIA.

MULUGETA SHUME SHEBIE

Titre : PERFORMANCE ASSESSMENT OF RAIN WATER HARVESTING BIRKAS : - THE CASE OF KEBRIBEYAH WOREDA OF SOMALI REGION, ETHIOPIA.

Auteur : MULUGETA SHUME SHEBIE

Université de soutenance : Arba Minch University

Grade : MASTER OF SCIENCE IN HYDRAULIC AND WATER RESOURCE ENGINEERING 2015

Résumé
Water pollution and water stress is tremendous problem in the pastoral area of Somali region including Kebribeyah Woreda. This study was made to assess the performance of traditional rain water harvesting Birkas as a source of domestic and livestock water supply at Kebribeyah Woreda. For this study a total of 150 household questionnaires conducted and 15 water samples from 15 Birkas for water quality test were analyzed from selected Lebeshek, Gerbe and Meregacho Kebeles. The design and physical capacity of the Birkas were studied with site visits and documents. Temperature, electric conductivity, pH, turbidity, total hardness, total dissolved solid, alkalinity, nitrate and total coliform was analyzed to characterize the water. 80% of the Lebeshek, 80% of the Gerbe and 100% of the Meregacho of the measured samples pH values satisfies WHO standards. 40%, 20% and 20% of the sample turbidity from Lebeshek, Gerbe and Meregacho respectively satisfied the WHO standards however, none of the samples were qualified the WHO standard for total coliform. The rest of the parameters are within the permissible limit of WHO standards for drinking water standard. The conducted survey indicated the highest proportion of water supply consumed by the livestock. Little sense of ownership and responsibility among the community towards the Birka, luck of frequent maintenance and water treatment were the major problem. With regard to the quantity of water and quality loss, water loss due to evaporation, sedimentation, crack (seepage) and poor management condition was aggravating the problem of the water shortage in the area. These preliminary results can be useful for relevant stakeholders to take the necessary measures when designing, rehabilitating, managing Birkas in the area. The involvement of community is of paramount importance for sustainability.

Présentation et version intégrale (NADRE)

Page publiée le 4 juin 2022