基本信息:
- 专利标题: 水処理方法
- 专利标题(英):Water treatment method
- 申请号:JP2015518692 申请日:2014-12-02
- 公开(公告)号:JPWO2015083717A1 公开(公告)日:2017-03-16
- 发明人: 智宏 前田 , 智宏 前田 , 谷口 雅英 , 雅英 谷口 , 世人 伊藤 , 世人 伊藤
- 申请人: 東レ株式会社
- 申请人地址: 東京都中央区日本橋室町2丁目1番1号
- 专利权人: 東レ株式会社
- 当前专利权人: 東レ株式会社
- 当前专利权人地址: 東京都中央区日本橋室町2丁目1番1号
- 代理人: 特許業務法人栄光特許事務所
- 优先权: JP2013248874 2013-12-02
- 主分类号: C02F1/44
- IPC分类号: C02F1/44 ; B01D61/58 ; B01D63/02 ; B01D65/02 ; B01D65/06 ; B01D69/08 ; C02F1/04 ; C02F1/42
The present invention provides a water treatment method for use in desalination method for obtaining fresh water by reverse osmosis membrane was pretreated with a porous separation membrane, supply water to be treated in the membrane filtration unit containing the porous separation membrane and a filtration step to obtain a filtrate and filtration treatment, separated by the porous separation membrane, and a water discharge step of discharging the treated water that has been enriched in the membrane filtration apparatus, the porous separation membrane, physical cleaning and and a cleaning step of cleaning at least one of chemical cleaning, the filtration step to obtain a plurality of times repeatedly filtered water to combined cycle drainage and washing steps. Within one cycle, performing the washing step and filtration step and the draining step after repeating a plurality of times.
公开/授权文献:
- JP5804228B1 水処理方法 公开/授权日:2015-11-04
信息查询:
EspacenetIPC结构图谱:
C | 化学;冶金 |
--C02 | 水、废水、污水或污泥的处理 |
----C02F | 水、废水、污水或污泥的处理 |
------C02F1/00 | 水、废水或污水的处理C02F3/00至C02F9/00优先 |
--------C02F1/44 | .渗析法、渗透法或反渗透法 |