1. Occurrence and control of filamentous bulking in aerated wastewater treatment plants of the French paper industry.
- Author
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Fourest, E., Craperi, D., Deschamps-Roupert, C., Pisicchio, J.-L., and Lenon, G.
- Subjects
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WATER quality management , *SEWAGE disposal plants , *WASTEWATER treatment , *PAPER industry , *SLUDGE bulking , *SEWAGE purification , *INDUSTRIAL wastes , *PROKARYOTES , *BACTERIA - Abstract
The occurrence of filamentous bacteria was investigated in 15 French pulp and paper activated sludge wastewater treatment plant (WWTP). Large filamentous populations were present in most of the plants. Identification carried out with conventional methods based on morphological features and staining techniques showed that the four main filamentous bacteria encountered in these industrial WWTP and responsible for bulking belong to the genera Thiothrix sp., Type 021N, Haliscomenobacter hydrossis and Type 0092. During two years a specific survey was performed for three of these WWTP showing recurrent bulking phenomena. Data from WWTP performance, chemical data and filaments characterization were compared to correlate the presence of specific filaments with process operating conditions. [ABSTRACT FROM AUTHOR]
- Published
- 2004
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