Cyclic activated sludge technology was selected for the Potsdam Wastewater Treatment Plant (90,000 p.e.). The cyclic activated sludge facility comprises four modules integrated into two circular basins. Construction was commenced in February 1998 with seeding of the plant for start up taking place in October 1998. Process performance has been met since Spring 1999 at 80-90% of design load. In order to optimize start-up procedures, respiration rates were used as a guidance for process stabilization and online process optimization during normal operation. Operation for co-current nitrification denitirification provided an ammonia removal of 1.1 mg NH4-N/gMLSS · h (15°C) and a corresponding nitrate respiration rate of 0.85 mg NO3-N/gMLSS · h under aerated conditions. Enhanced biological phosphorus removal generated an effluent mean total phosphorus concentration of 0.38 mg/L without precipitant addition.
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Research Article|
February 01 2001
Cyclic activated sludge technology - recent operating experience with a 90,000 p.e. plant in Germany
G. Demoulin;
G. Demoulin
1SFC Umwelttechnik, Julius Welser Str. 15, A-5020 Salzburg
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A. Rüdiger;
A. Rüdiger
2Philipp Müller H+E GmbH, Münchstr. 11, D-70191 Stuttgart
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M. C. Goronszy
M. C. Goronszy
3Tri Tech Inc., P.O. Box 189, Lake Forest, CA 92630, USA
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Water Sci Technol (2001) 43 (3): 331–337.
Citation
G. Demoulin, A. Rüdiger, M. C. Goronszy; Cyclic activated sludge technology - recent operating experience with a 90,000 p.e. plant in Germany. Water Sci Technol 1 February 2001; 43 (3): 331–337. doi: https://doi.org/10.2166/wst.2001.0154
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