REGENERATION METHOD FOR FILTRATION APPARATUS, FILTRATION APPARATUS AND WATER TREATMENT APPARATUS
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United States of America Patent
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Feb 20, 2015
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Feb 20, 2015
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A regeneration method for a filtration apparatus, a filtration apparatus, and a water treatment apparatus are disclosed that shorten a time required until stabilization of water quality of filtrate after backwashing, and stably provide filtrate satisfying a desired water quality standard. The regeneration method for a filtration apparatus according to the invention is a regeneration method for a filtration apparatus that has a filter layer formed by filling a solid filter material formed with a protrusion on a surface, and passes water to be treated containing suspended matters through the filter layer to perform filtration of the suspended matters. The regeneration method for a filtration apparatus includes a step of backwashing the filter layer by passing washing liquid through the filter layer in a direction opposite to a passing direction of the water to be treated such that the protrusion is retained on the surface of the solid filter material.
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