发明名称 |
PROCESS FOR PRODUCING REGENERATED WATER AND SYSTEM FOR PRODUCING REGENERATED WATER |
摘要 |
A process and a system for producing reclaimed water are provided, which make it possible to stably obtain reclaimed water from wastewater without requiring a large quantity of ozone at all times while at the same time inexpensively preventing a membrane surface from fouling. The process includes an operations of: in normal mode, putting ozone generated by an ozone generator 3 into raw water to subject the raw water to ozone treatment, injecting a flocculant into the raw water before or after the ozone treatment, filtering the raw water by a separation membrane 8 after the ozone treatment and the injection of the flocculant. Then, intermittently setting a cleaning mode to put a larger quantity of cleaning ozone than in the normal mode into the raw water so as to intermittently increase the concentration of dissolved ozone, thereby cleaning the filtration membrane. |
申请公布号 |
EP2412679(A1) |
申请公布日期 |
2012.02.01 |
申请号 |
EP20100755865 |
申请日期 |
2010.03.10 |
申请人 |
METAWATER CO., LTD. |
发明人 |
NOGUCHI, MOTOHARU;KOZONO, HIDEKI;AOKI, MICHIKO |
分类号 |
C02F9/00;B01D65/02;C02F1/28;C02F1/44;C02F1/52;C02F1/56;C02F1/78;C02F103/20 |
主分类号 |
C02F9/00 |
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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