Factors Analysis on Ultrasonic Sludge Reduction in Continuous Flow System

摘要：

In stable continuous flow system (CFS), excess sludge with ultrasonic treatment was returned. The effect of ultrasonic density, ultrasonic time, ultrasonic pulse and recycled ratio of ultrasonic sludge on excess sludge reduction was studied, and effluent water quality and sludge settling ability were determined. Results showed that under ultrasonic density 0.4W/mL, ultrasonic time 5min, recycled ratio of ultrasonic sludge 1:24, excess sludge reduction ratio was above 90％, effluent water quality could achieve Ⅱ-class criteria specified in the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002), SVI was about 100mL/gMLSS, sludge settled properly. Ultrasonic pulse had hardly any effect on excess sludge reduction.

关键词： ultrasound ezcess sludge reduction continuous flow system

作者: Liu Yongde Liu Jun Zhao Jihong

作者单位: Department of Environmental Engineering,School of Chemistry and Chemical Engineering,Henan University of Technology,Zhengzhou,Henan,P.R.China

会议类型: 国际会议

会议名称: The 3rd International Conference on Bioinformatics and Biomedical Engineering(iCBBE 2009)(第三届生物信息与生物医学工程国际会议)

会议地点: 北京

会议语种:英文

页码: 1-4

在线出版日期: 2009-06-11（万方平台首次上网日期，不代表论文的发表时间）