发明名称 |
PACKED BED BIOREACTOR FOR BIOFOULING CONTROL OF REVERSE OSMOSIS AND NANOFILTRATION MEMBRANES |
摘要 |
An installation and a method for removing dissolved biodegradable compounds as a biological treatment step upstream of an equipment to be protected from biofouling being part of a ground water, surface water or tertiary wastewater treatment line, wherein said upstream biological treatment step is carried out in at least one packed bed bioreactor comprising a vessel or a tank filled with packing elements, characterized in that: iv) said packing elements of said packed bed show a void fraction of at least 70% and the flow velocity of water through said packed bed bioreactor is at least 20 m/h, so that said packed bed does not have a removal efficiency of suspended solids in water, if any, of more than 30%; v) said packing elements of said packed bed show a specific surface area of at least 750 m2/m3; vi) said process does not require the use of any biocide or biostatic compound. |
申请公布号 |
WO2011026521(A1) |
申请公布日期 |
2011.03.10 |
申请号 |
WO2009EP61456 |
申请日期 |
2009.09.04 |
申请人 |
VEOLIA WATER SOLUTIONS & TECHNOLOGIES SUPPORT;BROUWER, HARRY;WITTMANN, ERICH |
发明人 |
BROUWER, HARRY;WITTMANN, ERICH |
分类号 |
C02F3/12;C02F3/00;C02F3/10 |
主分类号 |
C02F3/12 |
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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