发明名称 |
Method for purifying waste water using activated slude to increase purification yields |
摘要 |
PCT No. PCT/EP94/00813 Sec. 371 Date May 29, 1996 Sec. 102(e) Date May 29, 1996 PCT Filed Mar. 10, 1994 PCT Pub. No. WO94/20425 PCT Pub. Date Sep. 15, 1994The invention concerns a process for increasing the purification yield in the activation tank of a station for the purification of waste waters employing the so-called "activated sludge" process. According to the invention, talc, pyrophyllite, kaolin or mica, possibly cationized, are added to the biomass, these having a particle size less than 100 mu m in quantities of up to 2.0 g per liter of waste waters. A great improvement in solid/liquid separation is observed at the outlet from the activation tank as well as an increase in the purification yield for carbonaceous pollution, nitrogenous pollution and phosphate-containing pollution even when the station operates at medium or high load.
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申请公布号 |
US5759403(A) |
申请公布日期 |
1998.06.02 |
申请号 |
US19960507390 |
申请日期 |
1996.05.29 |
申请人 |
NAINTSCH MINERALWERKE GESSELLSCHAFT M.B.H. |
发明人 |
CLAUSS, FREDERIC;WAMSER, NORBERT;HANGL, MANFRED;TROOPER, HARALD;CAPDEVILLE, DECEASED, BERNARD |
分类号 |
C02F1/28;C02F3/10;C02F3/12;C02F3/22;(IPC1-7):C02F3/12 |
主分类号 |
C02F1/28 |
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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