发明名称 |
VERBESSERUNGEN AN BELEBTSCHLAMMVERFAHREN |
摘要 |
<p>Process for controlling the retention time of the sludge undergoing clarification in a process for treating wastewater by activated sludge comprising a recirculation of the activated sludge from the clarification stage into the biological basins, characterized in that the rate of sludge recirculation (Qr) is varied so as to maintain a constant recirculated sludge concentration (Cr) while at the same time guaranteeing a retention time (RT) of the sludge undergoing clarification of less than a critical value (RTmax).</p> |
申请公布号 |
DE69907941(T2) |
申请公布日期 |
2004.03.11 |
申请号 |
DE1999607941T |
申请日期 |
1999.09.29 |
申请人 |
SUEZ LYONNAISE DES EAUX, PARIS |
发明人 |
BUJON, BRUNO;CAULET, PHILIPPE;PHILIPPE, JEAN-PIERRE;CHATELLIER, PATRICE |
分类号 |
C02F3/00;C02F3/12;(IPC1-7):C02F3/12 |
主分类号 |
C02F3/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|