METHOD FOR TREATING ORGANIC WASTE WATER AND ITS TREATMENT APPARATUS,申请号JP20040070701-传众专利搜索

METHOD FOR TREATING ORGANIC WASTE WATER AND ITS TREATMENT APPARATUS

申请公布号：JP2005254165(A)

申请号：JP20040070701

申请日期：2004.03.12

申请公布日期：2005.09.22

申请人：

MITSUBISHI HEAVY IND LTD

发明人：HORIZOE KOJI;HORIZOE HIROTOSHI;OMURA TOMOAKI;SATO JUN;UKAI NOBUYUKI

分类号：F23G7/04;B01D53/38;B01D53/77;C02F3/12;C02F11/04;C02F11/06;C02F11/08;(IPC1-7):C02F11/08

主分类号：F23G7/04

摘要：PROBLEM TO BE SOLVED: To provide a method for treating organic waste water capable of effectively utilizing an existing facility to remove an odor component in a hydrothermally treated gas and reducing an equipment cost and an operation cost, and its treating apparatus. SOLUTION: In a system for treating the organic waste water comprising the steps of introducing hardly decomposable sludge obtained by biologically treating the organic waste water 21 in an aeration tank 2 into a hydrothermal solubilization device 5, introducing solubilized sludge 27 discharged from the apparatus into an anaerobic treatment tank 8 and carrying out incineration of digested sludge 28 from the anaerobic treatment tank 8 by a sludge incinerator 9, at least a part of the hydrothermally treated gas 34 from the solubilization device 5 is introduced into the anaerobic treatment tank 8, a gas amount is adjusted such that a digested gas generation amount in the anaerobic treatment tank 8 becomes a hydrothermally treated gas amount containing an oxygen amount to be maintained, and an excess hydrothermally treated gas 34 is introduced into the sludge incinerator 9. COPYRIGHT: (C)2005,JPO&NCIPI