DAM SEDIMENT DISCHARGE AND FILTRATION METHOD AND PROCESSING METHOD

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PROBLEM TO BE SOLVED : To provide a method for easily performing sludge removal for solving the problem that a conventional construction method by conventional dam sludge treatment raises the turbidity problem having harmful effects on aquatic plants and animals or causing a deterioration in drinking water, and for solving the turbidity problem, and for effectively utilizing the treated sludge and filtrate water. SOLUTION : In this invention, sedimentation sludge and earth and sand are sucked by drop pressure, and the turbid water is transported to the destination to reconstruct a dam. In the sludge treatment method, a setting tank is prepared in the downstream, and the turbid water is flown therein to be settled. The setting tank is prepared by clearing a slope or the top of a mountain, thereby requiring no robust construction, and having benefits of easy preparation and low cost. The filtrate water after settling is utilized for industrial water, drinking water, or the like. In the treatment of the settled sludge, after fermentation, the sludge becomes premium mold. The mixed sludge is processed into construction materials or revetment materials as stone materials, or into environment resources such as biotope to be profitably utilized.