WASHING METHOD OF CONTAMINATED SAND

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PROBLEM TO BE SOLVED : To provide a washing method of contaminated sand, for the purpose of washing sand contaminated with excreta of animals or fine particles of earth entrained by rainwater in a sandbox of a park or a kindergarten, and improving fluidity or recovering characteristics of sand for a bunker of a golf course or farming. SOLUTION : In this washing method of contaminated sand, contaminated sand is mixed with dilution water and formed into high speed slurry, and the speed of the slurry is rapidly reduced to separate contaminant in the contaminated sand. COPYRIGHT : (C)2008, JPO&INPIT