发明名称 SLUDGE DIGESTION METHOD
摘要 PROBLEM TO BE SOLVED: To solubilize digested sludge at low cost while stably maintaining microorganism reaction in a digestion tank. SOLUTION: In a sludge digestion method for anaerobically digesting organic sludge 10 to be treated, in the digestion tank 12, a part of the digested sludge is pulled out from the digestion tank 12, and the pull-out digested sludge 18 is preliminarily oxidized in an oxidation tank 20 in a first process. The digested sludge 18 after the first process is introduced into a solubilization tank 24 in a second process, and chlorine dioxide 26 is added to the solubilization tank 24 to solubilize the digested sludge 18. The digested sludge 18A after being solubilized is returned to the digestion tank 12. COPYRIGHT: (C)2007,JPO&INPIT
申请公布号 JP2006272234(A) 申请公布日期 2006.10.12
申请号 JP20050097986 申请日期 2005.03.30
申请人 HITACHI PLANT TECHNOLOGIES LTD 发明人 YOSHIKAWA SHINICHI;TERUI SHIGEKI;RI GYOKUYU
分类号 C02F11/04;C02F11/00;C02F11/06 主分类号 C02F11/04
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