公开(公告)号：US20170121203A1

公开(公告)日：2017-05-04

申请号：US15403661

申请日：2017-01-11

Applicant: HITACHI, LTD.

Inventor： Yasunori SEKINE ,  Kazuhiko NOTO ,  Akira SASAKI ,  Kotaro KITAMURA

IPC: C02F9/00 ,  B01D61/58 ,  B01D61/06 ,  B01D61/14 ,  B01D61/02

CPC classification number: C02F9/00 ,  B01D61/022 ,  B01D61/025 ,  B01D61/06 ,  B01D61/145 ,  B01D61/58 ,  B01D2317/022 ,  B01D2317/025 ,  C02F1/001 ,  C02F1/441 ,  C02F1/444 ,  C02F3/1268 ,  C02F3/1273 ,  C02F2103/08 ,  C02F2303/10 ,  Y02A20/131 ,  Y02W10/15 ,  Y02W10/30

Abstract: This desalinization system, which obtains industrial-use water and drinking water from seawater and wastewater, is provided with; a purification device that purifies wastewater by removing activated sludge therefrom; a first RO membrane that removes salt from the output of the purification device by transferring said salt to first concentrated water, thereby producing industrial-use water; a UF membrane that seawater passes through and that removes particulates from said seawater; a second RO membrane that removes salt from the treated output of the UF membrane by transferring said salt to second concentrated water, producing drinking water; an agitation device to which the second concentrated water from the second RO membrane and the first concentrated water from the first RO membrane are sent to be agitated; and a third RO membrane removing salt from the liquid mixture agitated by the agitation device by transferring said salt to third concentrated water, producing industrial-use water.

公开(公告)号：US20160346735A1

公开(公告)日：2016-12-01

申请号：US15164990

申请日：2016-05-26

Applicant: Hitachi, Ltd.

Inventor： Kotaro KITAMURA ,  Shinichi YOSHIKAWA ,  Masayuki MATSUURA ,  Takanori OSHIKIRI ,  Yusuke OKAWA

IPC: B01D61/08 ,  B01D61/10 ,  C02F1/44 ,  B01D61/02

CPC classification number: B01D61/08 ,  B01D61/025 ,  B01D61/06 ,  B01D61/10 ,  B01D61/12 ,  B01D2313/243 ,  B01D2313/246 ,  B01D2317/04 ,  B01D2317/06 ,  C02F1/441 ,  C02F2103/08 ,  C02F2201/007 ,  C02F2303/10 ,  Y02A20/131 ,  Y02W10/30

Abstract: Provided is a seawater desalination system including reverse osmosis membrane modules each including: a reverse osmosis membrane; and a pressure vessel installing the reverse osmosis membrane, and configured to obtain permeated water and concentrated water using the reverse osmosis membranes housed in the reverse osmosis membrane modules by supplying seawater to the reverse osmosis membrane modules. The seawater desalination system includes a module group including the reverse osmosis membrane modules connected together in parallel. The seawater is supplied to each of the reverse osmosis membrane modules by being supplied to the module group through first and second seawater supply routes. The first and second seawater supply routes are each provided with a liquid transport pump configured to supply the seawater flowing through the seawater supply route to the module group.

Abstract translation: 提供了一种包括反渗透膜组件的海水淡化系统，每个包括：反渗透膜; 以及安装反渗透膜的压力容器，并且通过向反渗透膜组件供给海水，使用容纳在反渗透膜组件中的反渗透膜来获得渗透水和浓缩水。 海水淡化系统包括并联连接在一起的反渗透膜模块的模块组。 通过第一和第二海水供应路线向每个反渗透膜组件供应海水。 第一和第二海水供应路线分别设置有液体输送泵，其构造成将流过海水供应路线的海水供应到模块组。

公开(公告)号：US20150001151A1

公开(公告)日：2015-01-01

申请号：US14308734

申请日：2014-06-19

Applicant: Hitachi, Ltd.

Inventor： Keiko NAKANO ,  Kotaro KITAMURA ,  Misaki SUMIKURA

IPC: B01D61/18 ,  C02F1/44 ,  B01D61/08

CPC classification number: C02F1/444 ,  B01D61/025 ,  B01D61/06 ,  B01D61/12 ,  B01D61/145 ,  B01D61/58 ,  B01D63/10 ,  B01D65/02 ,  B01D2311/04 ,  B01D2313/143 ,  B01D2321/04 ,  B01D2321/40 ,  C02F1/004 ,  C02F1/44 ,  C02F1/441 ,  C02F1/5245 ,  C02F1/66 ,  C02F1/76 ,  C02F9/00 ,  C02F2103/08 ,  C02F2209/001 ,  C02F2303/10 ,  C02F2303/20 ,  Y02W10/30 ,  B01D2311/2692 ,  B01D2311/2642 ,  B01D2311/2649 ,  B01D2311/18

Abstract: In a water treatment system, fouling is made earlier detectable, considering additionally the effect of spacers arranged between its separating membrane layers.A water treatment system 1 includes a pre-treating unit for pre-treating a raw water; a desalting unit having a separating membrane unit for separating substance to be separated from the raw water pre-treated in the pre-treating unit, using a separating membrane; and a monitoring unit between the pre-treating unit and the desalting unit. The monitoring unit has a monitor device fitted to a bypass pipe and configured to have a closed vessel having at least one transparent or semitransparent surface, and an image-pickup device which makes the raw water flowing in this vessel visible through the transparent or semitransparent surface. In the vessel, separating membrane layers which the separating membrane unit has, and a fouling-generating member are arranged to be put onto each other. This fouling-generating member imitates spacers for keeping, apart from each other, the separating membrane layers of the separating membrane arranged in the separating membrane unit.

Abstract translation: 在水处理系统中，考虑到另外考虑隔离膜层之间的间隔物的影响，使污垢早期可检测。 水处理系统1包括用于预处理原水的预处理单元; 脱盐单元，具有分离膜单元，用于使用分离膜将从预处理单元中预处理的原水中分离的物质分离; 以及在所述预处理单元和所述脱盐单元之间的监视单元。 监控单元具有安装在旁路管上并配置成具有至少一个透明或半透明表面的密闭容器的监视器装置，以及使得在该容器中流动的原水通过透明或半透明表面可见的图像拾取装置 。 在容器中，分离膜单元具有的分离膜层和污垢产生部件被布置成彼此放置。 这种污垢产生部件模仿用于保持分离膜单元中布置的分离膜的分离膜层的间隔物。