活性污泥1号模型的水质特性参数测定研究

活性污泥系统的进水水质特性是活性污泥数学模型研究和应用的重要方面．采用OUR呼吸计量法对安庆城东污水厂的水质特性参数进行了测定。结果表明，污水厂进水中5s、Xs、S1,X1占总COD。的质量分数分别为4．2％、7．3％、17．0％、71．0％。生物池进水中Ss、互s、SI、XI占总CODcr的质量分数分别为4．8％、10．5％、21．5％、62．7％，该厂的Snxs浓度偏低，XI浓度偏高；生物池进水中SNH,SNO,SND、XND占总氮的质量分数分别为71．4％、11．7％、7．3％、12．4％，SNH的比例偏高，5ND、xNn的比例偏低。污水水质参数的测定值与国外推荐值相差较大．在利用模型进行模拟时建议实际测定水质特性参数。

Detection of influent water characteristic parameters of ASM1

The detection of influent water characteristic perameters of activated sludge system is important for the research and the application of activated sludge model. Using batch OUR respirometric method to detect the characteristic parameters of the influent water of Anqing Chengdong Wastewater Treatment Plant, the results showed that, the mass ratios of Ss, Xs, St, X~ to total CODcr in the influent water of the plant were 4.2%, 7.3%, 17.0% and 71.0% respectively, and the relevant ratios in the influent water of the biological tank were 4.8%, 10.5%, 21.5% and 62.7% respectively. It could be seen that, the concentrations of Ss and Xs of the said plant were relatively low, and the X~ concentration was relatively high; the ratios of SNn, SNo, SND, XN~ to TN in the influent water of the biological tank were 71.4%, 11.7%, 7.3% and 12.4% respectively. As the difference between the measured value and the recommended value of the wastewater characteristic parameters is significant, it is suggested to use actual measured value when using ASM1 to simulate water characteristics.