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 |
WO2013094428(A1) |
申请公布日期 |
2013.06.27 |
申请号 |
WO2012JP81700 |
申请日期 |
2012.12.06 |
申请人 |
HITACHI PLANT TECHNOLOGIES, LTD. |
发明人 |
KITAMURA KOTARO;YOSHIKAWA SHINICHI;MIYAKAWA HIROKI |
分类号 |
B01D61/08;B01D61/10;B01D61/58;B01D65/06;C02F1/44 |
主分类号 |
B01D61/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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