CLEANING METHOD FOR WATER TREATMENT MEMBRANE

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United States of America Patent

SERIAL NO

15545866

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Abstract

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A cleaning method for a water treatment membrane (2) provided with a primary surface (2a) for inflow of untreated water and a secondary' surface (2b) for outflow of treated water, the method including a first cleaning step of bringing a first cleaning fluid containing a metal eluent into contact with at least the primary surface and eliminating metallic scale (11) attached to the water treatment membrane, and then a second cleaning step for bringing a second cleaning fluid containing an oxidizing agent into contact with at least the primary surface and eliminating organic scale (12) attached to the water treatment membrane.

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Patent Owner(s)

Patent OwnerAddress
MITSUBISHI HEAVY INDUSTRIES ENGINEERING LTD3-1 MINATOMIRAI 3-CHOME NISHI-KU YOKOHAMA-SHI KANAGAWA 2208401 ?2208401

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ito, Yoshiaki Tokyo, JP 167 1955
Sao, Toshio Isahaya-shi, JP 2 2
Tabata, Masayuki Tokyo, JP 16 25
Taura, Shintaro Tokyo, JP 4 2
Yokohama, Katsuhiko Tokyo, JP 35 125

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