DRAINAGE TREATMENT SYSTEM AND DRAINAGE TREATMENT METHOD

WIPO Patent Application WO/2022/118382

A1

Provided are a drainage treatment system and a drainage treatment method which are applied to receive drainage from a large number of factories and are suitable for preventing inundation (overflow) while achieving a reduction in the size of a storage tank. A drainage treatment system in which drainage from a plurality of factories is stored in a storage tank, the drainage from the storage tank is purified by a water treatment device configured by a combination of solid detergent and liquid regenerant, and the water treatment device is controlled by a drainage treatment facility control device, wherein the drainage treatment system is characterized in that: the water treatment device includes a solid detergent filtering device that performs purification operation in which the drainage from the storage tank is transformed into purified water, and a regeneration device that performs regeneration operation in which impurities absorbed to the solid detergent filtering device are desorbed; and the drainage treatment facility control device acquires operating plan information from the plurality of factories to predict the amount of drainage discharge from the factories, predicts the transition of a physical quantity at each part of the storage tank and the water treatment device associated with the predicted amount of drainage discharge, and controls the timing of operation by the water treatment device in accordance with the prediction result.

SANO TADASHI (JP)
OH U (JP)

PCT/JP2020/044781

June 09, 2022

December 02, 2020

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HITACHI LTD (JP)

C02F1/28

WO2015033455A1

2015-03-12

JPH07185518A	1995-07-25
JP2020163299A	2020-10-08

POLAIRE I.P.C. (JP)

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