发明名称 |
SEWAGE SLUDGE DEWATERING PROCESS |
摘要 |
A process of dewatering aqueous suspension employing a flocculating system comprising treating the suspension with a flocculating amount of a first flocculant and a dewatering amount of a second flocculant, and subjecting the suspension to mechanical dewatering to form a cake, wherein the first flocculant brings about flocculation and assists thickening of the suspension and the second flocculant is a water-soluble or water swellable polymer that is mixed into the suspension is a water-soluble or water swellable particulate polymer having a particle diameter of at least 20 microns.
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申请公布号 |
CA2558038(C) |
申请公布日期 |
2013.10.01 |
申请号 |
CA20052558038 |
申请日期 |
2005.02.28 |
申请人 |
CIBA SPECIALTY CHEMICALS WATER TREATMENTS LIMITED |
发明人 |
WHITTAKER, TONY;NORMAN, PETER;SMITH, DARRYL |
分类号 |
C02F1/56;C02F11/14 |
主分类号 |
C02F1/56 |
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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