发明名称 |
Removal of fluorinated surfactants from waste water |
摘要 |
The present invention provides a method of removing a fluorinated surfactant from waste water comprising fluoropolymer particles. The method comprises (i) adding a non-fluorinated surfactant to the waste water (ii) contacting the thus obtained waste water with adsorbent particles to adsorb at least a portion of the fluorinated surfactant to the adsorbent particles and (iii) separating the waste water and the adsorbent particles.
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申请公布号 |
US7018541(B2) |
申请公布日期 |
2006.03.28 |
申请号 |
US20050034188 |
申请日期 |
2005.01.12 |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
HINTZER KLAUS;OBERMAIER EGON;SCHWERTFEGER WERNER |
分类号 |
B01D15/04;C02F1/28;C02F1/58 |
主分类号 |
B01D15/04 |
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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