摘要：
以活性污泥为研究对象, 分别测定了内源呼吸速率及最大呼吸速率同污泥浓度的关系, 并进行了比较。得到内源呼吸速率同污泥浓度的关系曲线为:y=0.004 7 x-0.011 3, 对应的比呼吸速率约为5 mg/(g.h), 最大呼吸速率与污泥浓度的关系曲线为:y=0.0232x-0.082 1, 最大比呼吸速率约为23 mg/(g.h)。利用上述关系可以通过在线测量呼吸速率求得混合液污泥浓度。其计算结果与普通测量方法具有很好的相关性, 可以用来动态监测曝气池混合液的污泥浓度。
关键词:
活性污泥,
呼吸速率,
内源呼吸
Abstract:
The relation of MLSS between the endogenous respiration rate and the maximum respiration rate are investigated and compared respectively based on activated sludge process. The expression of the plot of MLSS and the endogenous respiration rate is y=0.004 7 x- 0.011 3, and of the maximumrespiration rate is y=0.023 2 x- 0.082 1.The specific endogenous respiration rate is about 5 mg/(g·h), and the maximum specific respiration rate is about 23 mg/(g·h). Making use of the expressions above, the MLSS can be obtained by on-line measurement of the respiration rate, because the calculated value is correlative with that from the usual method. It can be used in measuring the MLSS of the aeration tank in dynamic state.
Key words:
activated sludge,
respiration rate,
endogenous respiration
中图分类号:
刘昕, 张继伟, 朱书全, 杨云程, 杨丽丽. 利用呼吸速率在线测定活性污泥浓度[J]. 工业水处理, 2007, 27(11): 62-64.
Liu Xin, Zhang Jiwei, Zhu Shuquan, Yang Yuncheng, Yang Lili. On-line measurement of activated sludge concentration making use of the respiration rate[J]. INDUSTRIAL WATER TREATMENT, 2007, 27(11): 62-64.