Method for treating water containing low-molecular-weight organic substance

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United States of America Patent

PATENT NO 10800676
APP PUB NO 20170121190A1
SERIAL NO

15128306

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Abstract

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Provided is a method for treating water containing a low-molecular-weight organic substance which enables the low-molecular-weight organic substance to be removed with certainty at a sufficient level without subjecting the water to a biological treatment. A method for treating water containing a low-molecular-weight organic substance, the method comprising passing raw water to a high-pressure reverse-osmosis-membrane separation device, the raw water containing a low-molecular-weight organic substance having a molecular weight of 200 or less at a concentration of 0.5 mgC/L or more, wherein an amount of brine discharged from a reverse-osmosis-membrane module (5a) disposed at an end of a final stage of the high-pressure reverse-osmosis-membrane separation device is 2.1 m3/(m2·D) or more.

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Patent Owner(s)

  • KURITA WATER INDUSTRIES LTD

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ikuno, Nozomu Tokyo, JP 17 35

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