Dehydrating method for sludge
专利汇可以提供Dehydrating method for sludge专利检索，专利查询，专利分析的服务。并且PURPOSE: To reduce the percentage of moisture content of dehydrated cake and treating cost, by mixing impurities (sieved dregs) from dregs removing process with mixed sludge of surplus activated sludge and coagulated sludge and dehydrating the mixture at the activated sludge method having the dregs removing process.
CONSTITUTION: For example, dregs are removed from the raw sewage 1 at the pretreatment process 2 and the sewage 3 removed the dregs is flowed in the coagulation process 6 after flowing said sewage 3 in the activated sludge treatment process 4 and purifying it. After mixing the surplus sludge 8 of the process 4 performed the coagulation treatment and the coagulated sludge 9 of the process 6 with the sieved dregs 10 transferred from the process 2 in the sludge storing vessel 12, this mixture is coagulated by adding the high molecular coagulant 14 in the coagulation vessel 13 and is dehydrated in the dehydrater 15 and then, the dehydrated cake 16 having a low percentage of moisture content, is obtained effectively. Further, mechanical stirring is allowed to use for mixing in said vessel 12 but, it is good to use the air, O
2 or ozonized air including the removal of remaining BOD.
COPYRIGHT: (C)1981,JPO&Japio，下面是Dehydrating method for sludge专利的具体信息内容。
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