Title:
余剰汚泥引き抜きの少ない排水処理方法
Document Type and Number:
Japanese Patent JP4958551
Kind Code:
B2
Abstract:
A method of wastewater treatment that reduced equipment cost and running cost and realizes high efficiency implementation and further tank miniaturization, and that reduces excess sludge withdrawal. There is provided a method of wastewater treatment with excess sludge withdrawal reduced, characterized in that there are installed an aeration tank wherein wastewater is brought into contact with carrier particles under aerobic conditions, a total oxidization tank and a sedimentation tank, and that operation is made while maintaining the BOD sludge load in the total oxidization tank at 0.08 kg-BOD/Kg-MLSS*day or smaller, and that a coagulant is charged in the complete oxidization tank in order to improve the setting in the sedimentation tank.
Inventors:
Yasuhiro Baba
Hiroaki Fujii
Okabe Hidehiko
Goro Kobayashi
Hiroaki Fujii
Okabe Hidehiko
Goro Kobayashi
Application Number:
JP2006529201A
Publication Date:
June 20, 2012
Filing Date:
July 15, 2005
Export Citation:
Assignee:
KURARAY CO.,LTD.
International Classes:
C02F3/12; B01D63/02; C02F1/44; C02F3/08; C02F3/10; C02F3/34
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Attorney, Agent or Firm:
Shuji Sugimoto