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Turbid water during the rainy season can reduce seepage even leading to blockage at the base of a recharge reservoir. Sediment filter pond model was designed to reduce level of water turbidity and heavy metal content. This research aimed to determine how effective the use of the sediment filter pond model in reducing level of water turbidity and heavy metal content. More specifically this model was expected to be applicable in a recharge reservoir and could overcome seepage blockage as a main problem currently on it. Therefore, the use of the sediment filter pond model can maintain the high capacity of a recharge reservoir. Laboratory experiments were carried out to examine the research effectiveness. Volume rate and turbidity level of water flow out of the filter pond were measured with 3 variations of water turbidity, sand gradation and natural zeolite weight. This research revealed that the lowest absorbance and actual concentration of heavy metal Lead (Pb) and Cuprum (Cu) at zeolite weight 30 gram comparing with the zeolite weight 25 gram and 20 gram. Percentage of reduction in water turbidity increases with the increase of zeolite weight at each level of water turbidity.

Recharge Reservoir Blockage Prevention with Sediment Filter Pond Model