公开(公告)号：US20180280888A1

公开(公告)日：2018-10-04

申请号：US15936643

申请日：2018-03-27

Applicant: HITACHI, LTD.

Inventor： Koji FUKUZAKI ,  Makoto ONISHI ,  Shinichi YOSHIKAWA ,  Shuji YAMADA ,  Kotaro KITAMURA ,  Yasutaka KONDO

IPC: B01D65/02 ,  B01D61/02 ,  B01D61/08 ,  B01D61/12 ,  B01D63/06 ,  C02F1/44 ,  B01D65/06

Abstract: A reverse osmosis treatment apparatus includes a membrane unit including an osmosis membrane module. The membrane unit includes a plurality of banks connected in series, each bank including an osmosis membrane module. At least one of the banks includes a treatment water pipe valve and a concentrated water pipe valve, and a bypass pipe capable of diverting the water to be treated, which is to be supplied to the bank, around the bank and draining the water to be treated and a chemical cleaning pipe capable of supplying the reverse osmosis membrane module disposed in the bank with chemical cleaning water are connected. A reverse osmosis treatment method is for cleaning intermittently a bank having the treatment water pipe valve and the concentrated water pipe valve while continuing the reverse osmosis treatment using the remaining bank.

公开(公告)号：US20160304375A1

公开(公告)日：2016-10-20

申请号：US15092111

申请日：2016-04-06

Applicant: HITACHI, LTD.

Inventor： Shigeki TERUI ,  Hisashi ISOGAMI ,  Yasuyuki YAGI ,  Yasutaka KONDO ,  Kazuya IWAMOTO

IPC: C02F9/00 ,  B03C1/01 ,  B03C1/30 ,  C02F1/48 ,  C02F1/44 ,  C02F1/52 ,  B01D21/00 ,  B03C1/10 ,  B01D21/01 ,  B01D61/36

CPC classification number: C02F1/488 ,  B01D21/0009 ,  B01D21/01 ,  B01D61/364 ,  B01D61/366 ,  B01D2313/38 ,  B03C1/28 ,  B03C1/30 ,  C02F1/447 ,  C02F1/52 ,  C02F2101/32 ,  C02F2209/006 ,  C02F2209/05 ,  C02F2209/40 ,  Y02A20/131 ,  Y02W10/37

Abstract: A produced water treatment system includes: a raw water flow passage to allow produced water to flow therethrough; a desalination flow passage connected to the raw water flow passage, and connected to a membrane distillation apparatus which removes a salt in the produced water flowing in from the raw water flow passage; and a bypass flow passage connected to the desalination flow passage and configured to supply the produced water to desalinated water obtained by desalination by the membrane distillation apparatus.

Abstract translation: 一种生产的水处理系统包括：原水流通道，其允许生成的水流过其中; 与原水流路连接的脱盐流路，与从原水流路流入的生成水中除去盐的膜蒸馏装置连接; 以及旁通流路，其连接到所述脱盐流路，并且将所生成的水供给由所述膜蒸馏装置脱盐而得到的脱盐水。