ACTIVATED SLUDGE TANK, ACTIVATED SLUDGE TREATMENT APPARATUS, GASIFIED GAS REFINING APPARATUS AND ACTIVATED SLUDGE TREATMENT METHOD

摘要

PROBLEM TO BE SOLVED: To provide an activated sludge tank or the like capable of activating activated sludge and performing efficient treatment.;SOLUTION: In the activated sludge tank 12 for nitrifying and denitrifying organic matters and nitrogen inside one tank, calcium carbonate is supplied into the tank 12. The calcium carbonate is supplied as a carrier. In the activated sludge treatment apparatus B, an initial sedimentation basin 9, a coagulating sedimentation tank 10, an ammonia stripping portion 11, the activated sludge tank 12, and a final sedimentation tank 13 are serially connected.;COPYRIGHT: (C)2011,JPO&INPIT