发明名称 |
REVERSE OSMOSIS TREATMENT DEVICE AND METHOD FOR CLEANING REVERSE OSMOSIS TREATMENT DEVICE |
摘要 |
<p>A reverse osmosis treatment device (10) is equipped with: a first pressure vessel (80) for treating water to be treated and creating a primary effluent and first permeated water; a second pressure vessel (82) for treating the primary effluent and creating a secondary effluent and second permeated water; a first cleaning liquid storage tank (110) for storing a first cleaning liquid for cleaning the first pressure vessel; and a second cleaning liquid storage tank (112) for storing a second cleaning liquid for cleaning the second pressure vessel. Therein the first and second pressure vessels each have one reverse osmosis membrane element (22) equipped with a reverse osmosis membrane and positioned therein the vessels or a plurality of reverse osmosis membrane elements (22) connected in series via a water collecting pipe through which permeated water flows. Furthermore the first cleaning liquid storage tank is connected to a first concentrated water discharge pipe (62) of the first pressure vessel and the second cleaning liquid storage tank is connected to a primary effluent introduction pipe (68) of the second pressure vessel.</p> |
申请公布号 |
IN4563CHN2014(A) |
申请公布日期 |
2015.09.18 |
申请号 |
IN2014CH04563 |
申请日期 |
2014.06.18 |
申请人 |
HITACHI LTD. |
发明人 |
KITAMURA KOTARO;YOSHIKAWA SHINICHI;MIYAKAWA HIROKI |
分类号 |
B01D61/08;B01D61/10;B01D61/58 |
主分类号 |
B01D61/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|