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《Environmental Science & Technology》 2009-01
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Effect of Different BOD/N on Property of Activated Sludge Settling

SUN Tian-ran, CHENG Jie-min, WANG Han-wei(School of Population,Resource and Environment,Shandong Normal University,Jinan 250014,China)  
Effect of different nitrogen content on settling property of activated sludge was investigated specially in some experiments carried on a sequencing batch reactor(SBR)fed with domestic wastewater.Experimental results showed that sludge settled properly at an influent value of BOD/N 100/5 and 100/3.When value of BOD/N was 100/1,non-filamentous activated sludge bulking caused by an excessive growth of viscous zoogloea with high moisture content occurred lightly.Effect of various nitrogen contents on COD removal efficiency and changes of mixed liquor suspended solids were studied in the experiment.
【Fund】: 山东省环境保护科技项目资助(200408)
【CateGory Index】: X703
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