发明名称 |
METHOD AND DEVICE FOR PURIFYING WASTEWATERS |
摘要 |
The invention relates to a method for purifying wastewaters, particularly wastewaters produced in the paper industry, involving the following steps: a) aerobic clarification of the wastewater using activated sludge in an activation stage; b) carrying out, in a secondary settling tank, a subsequent clarification of a portion of the wastewater/activated sludge mixture leaving the activation stage; c) desiccating, in a desiccation unit, another portion of the wastewater/activated sludge mixture leaving the activation stage; d) returning at least a portion of the activated sludge removed in steps b) and c) into the activated sludge tank. |
申请公布号 |
WO03029152(A2) |
申请公布日期 |
2003.04.10 |
申请号 |
WO2002EP11008 |
申请日期 |
2002.10.01 |
申请人 |
PAPIERFABRIK AUGUST KOEHLER AG;KRAFT, HARALD;ARMBRUSTER, HANS-THOMAS;BENZ, WENDELIN |
发明人 |
KRAFT, HARALD;ARMBRUSTER, HANS-THOMAS;BENZ, WENDELIN |
分类号 |
C02F1/00;C02F3/08;C02F3/12;C02F11/12 |
主分类号 |
C02F1/00 |
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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