ISSN (0970-2083)

Research Article Open Access

DESIGN OF SAND FILTER UNIT FOR SURFACE WATER TREATMENT IN GUBRE CITY, SNNPR, AND ETHIOPIA

Abstract

Surface water is the best source of water that satisfies us from our thirst and used for many other houses hold and industrial applications. It can be polluted by different means of contaminations. The presence of these contaminations may be in the form of soluble, insoluble or with other compounds above its limit could alter the usefulness of the water. In the present study, this project is aimed to design a Sand Filter unit, which deals with impurity problem in surface water, by using Sand Filtration as alternative treatment method for treating surface water for drinking in Gubre-City, SNNPR, and Ethiopia. To achieve this goal, three plastic version Sand Filter units were installed at laboratory and performed about nine experiments with different parameters. The results are analyzed by the efficiency of Sand Filter in removing impurity and compared between units with respect to the key design parameters. Three experimental results were selected and compared which have best impurity removal efficiency. Finally, it is observed that all these three Sand Filter units achieved more than 80% turbidity removal efficiency from surface water. From the experiments, it is clear that the Sand Filter Unit 1 as attained the highest turbidity removal efficiency of 88.4% as compared to the other two Sand Filter units.

DAIDA SHARATH, BERHE TEKLE A AND SUSHMA K

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