METHOD FOR THE BIOLOGICAL ANAEROBIC TREATMENT AND REDUCTION OF EXCESS SLUDGES
Kind Code:
A1
Abstract not available for EP1280737
Abstract of corresponding document: DE10021632
The invention relates to a method for the biological anaerobic treatment and reduction of excess sludges in sewerage plants with an activation stage and a secondary sedimentation stage, wherein at least a part of the excess sludge of the activation stage is digested by reacting it with ozone and is then subjected to an aerobic treatment. The inventive method is further characterized in that the digestion of the excess sludge by reaction with ozone is a least partially carried out in the activation stage simultaneously with the aerobic treatment of the sewage.
Abstract of corresponding document: DE10021632
The invention relates to a method for the biological anaerobic treatment and reduction of excess sludges in sewerage plants with an activation stage and a secondary sedimentation stage, wherein at least a part of the excess sludge of the activation stage is digested by reacting it with ozone and is then subjected to an aerobic treatment. The inventive method is further characterized in that the digestion of the excess sludge by reaction with ozone is a least partially carried out in the activation stage simultaneously with the aerobic treatment of the sewage.
Inventors:
Leitzke, Ortwin (DE)
Bidinger, Stefan (DE)
Dzedzig, Bernd (DE)
Geiger, Markus (DE)
Heckmann, Frank (DE)
Hoelter, Heinz (DE)
Rauch, Bernd (DE)
Wohlfeil, Stefan (DE)
Bidinger, Stefan (DE)
Dzedzig, Bernd (DE)
Geiger, Markus (DE)
Heckmann, Frank (DE)
Hoelter, Heinz (DE)
Rauch, Bernd (DE)
Wohlfeil, Stefan (DE)
Application Number:
EP20010943019
Publication Date:
02/05/2003
Filing Date:
05/04/2001
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Export Citation:
Assignee:
Philaqua, Aufbereitungstechnik (DE)
International Classes:
C02F1/34; C02F1/36; C02F1/78; C02F1/78; C02F3/12; C02F3/12; C02F3/30; C02F3/30; C02F11/04; C02F11/04; (IPC1-7): C02F3/12; C02F1/78
European Classes:
C02F1/78; C02F3/12S; C02F3/30D
Other References:
See references of WO 0183382A1