活性污泥1号模型模拟糖厂废水处理关键参数测定

Measurement of Key Parameters in ASM1 to Simulate Sugar Refinery Wastewater

关键词:  废水  糖厂  呼吸计量法  参数  测定

Key words:  wastewater  sugar making industry  respirometric method  para meters  measurement

摘要:

采用呼吸计量法测定钦州某糖厂废水的异氧菌产率系数Y_H、异氧菌衰减系数b_H和异氧菌最大比增长速率系数_{_m.H}3个活性污泥1号模型(ASM1)模型参数,并与国际水质协会给出的ASM1模型中20℃时城市生活污水的参数推荐值进行比较。结果显示,Y_H为0.700,比推荐值(0.67)略高,说明对糖厂废水的处理,较之生活污水处理难度要大;b_H为0.56,比推荐值(0.62)略低,说明微生物在处理糖厂废水时自生生长的速度不及处理生活污水的快;_{_m.H}为5.71,比推荐值(6.0)略低,说明微生物在糖厂废水中的生存难度大于城市生活污水。

Abstract:

One of Qinzhou sugar refinery wastewater Y_H、b_H and _{_m.H} in Activated Sludge Model 1 (ASM1) were measured by respirometric method and compared with the recommended value by IAWQ for urban residential waste water at the temperature of 20℃.The conclusion is drawn than Y_H is 0.700, a bit higher than the recommended value (0.67), it shows that, compared with urban residential wastewater treatment, the degradation rate is relatively lower, the experiment draws a conclusion that, it is more difficult to treat industry wastewater than residential wastewater;b_H is 0.56, a bit lower than the recommended value (0.62), this shows that, when treating sugar refinery waste water, microorganism grows faster than the speed at which it treats the waste water;_{_m.H} is 5.71, a bit lower than the recommended value (6.0), this shows that, for microorganism, it is more difficult for microorganism to live in industry wastewater than in residential wastewater.