Membrane filtration system

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United States of America Patent

PATENT NO 9932250
SERIAL NO

14860525

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Abstract

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According to one embodiment, a membrane filtration system includes a raw water tank, a pretreatment membrane module, a raw water feed line, a high-pressure RO membrane module, a high-pressure line, a preceding power recovery unit which pressurize the pretreated water by transmitting the pressure of the concentrate to the pretreated water, a succeeding power recovery unit which pressurize the raw water by transmitting a remaining pressure of the concentrate to the raw water, a concentrate discharge line, a first pressure transmission line communicating to the power recovery unit by being branched from the high-pressure line, a second pressure transmission line communicating to the power recovery unit by being branched from the raw water feed line, and a valve provided in the drain line to regulate a discharge of the concentrate from the power recovery unit in accordance with a pressure loss in the pretreatment membrane module.

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Patent Owner(s)

Patent OwnerAddress
KABUSHIKI KAISHA TOSHIBA1-1 SHIBAURA 1-CHOME MINATO-KU TOKYO 105-8001

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hiraga, Yuka Tokyo, JP 2 4
Kurokawa, Futoshi Tachikawa, JP 15 86
Matsui, Koichi Tokyo, JP 34 1264
Matsushiro, Takeshi Yokohama, JP 14 95
Murayama, Seiichi Fuchu, JP 49 542
Namba, Ryo Fuchu, JP 7 19
Tokimoto, Hiroyuki Kawasaki, JP 3 16
Yamagata, Hideaki Urayasu, JP 51 589
Yokokawa, Katsuya Fuchu, JP 8 68

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