发明名称 |
Dewatering of suspensions |
摘要 |
PCT No. PCT/GB95/01333 Sec. 371 Date Apr. 16, 1997 Sec. 102(e) Date Apr. 16, 1997 PCT Filed Jun. 8, 1995 PCT Pub. No. WO95/33697 PCT Pub. Date Dec. 14, 1995A suspension is dosed with a coagulant and then with a flocculant and is dewatered to form a thickened sludge or cake and separated liquor, and control of the dewatering performance is improved by adding the flocculant at a predetermined dosage, monitoring the charge in the separated liquor (or monitoring other dewatering parameter of the separated liquor or suspension) and adding coagulant at a dosage selected in response to the monitored charge or other parameter value in order to maintain the value substantially at a preselected optimum value.
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申请公布号 |
US5846433(A) |
申请公布日期 |
1998.12.08 |
申请号 |
US19970765040 |
申请日期 |
1997.04.16 |
申请人 |
ALLIED COLLOIDS LIMITED;AB CDM |
发明人 |
SORENSEN, JENS;FIELD, JOHN RODNEY |
分类号 |
C02F1/56;C02F11/14;(IPC1-7):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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