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Analysis of the Activated Sludge of a Municipal WWTP by Several Bio-Parameters
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 Title & Authors
Analysis of the Activated Sludge of a Municipal WWTP by Several Bio-Parameters
Cho Sun-Ja; Jung Yong-Ju; Park Tae-Joo; Lee Sang-Joon;
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The activated sludge from the aeration basin of the Su-yeong municipal wastewater treatment plant which has operated by a standard activated sludge process in Busan, Korea was investigated during April 2004 and January 2005 with several bio-indicators. The number of bacteria and fungi per gram of dry weight of MLSS were estimated to be colony forming units, respectively, by the plate agar method. By cultivation-independent methods, such as 4',6-diamidino-2-phenylindole stain and fluorescence in situ hybridization, the ratio of eubacteria to the entire biomass was evaluated by more than (v/v). The ratio of ammonia-oxidizing bacteria and nitrite-oxidizing bacteria to the total eubacteria was detennined to be without heavy variation in spite of a period of relatively low temperature in the basin. It would be expected that the nitrification would occur or at least co-exist throughout the year in the sludge of many municipal WWTP with influents that contain the sufficient nitrogen sources although the WWTP does not have any specialized processes for the removal of nitrogen.
Activated sludge;Wastewater treatment plant (WWTP);Cultivation independent method;
 Cited by
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