期刊论文

Impact of Ultrasonic Cavitation Technology on the Remaining Sludge Supernatant

中文

市政技术

1009-7767

2016

34

3

135-137

10.3969/j.issn.1009-7767.2016.03.042

国家级大学生创新创业训练计划项目（201311527001）；

本校为第一机构

以益阳市团洲污水处理厂氧化沟与二沉池之间的回流污泥为研究对象,研究超声处理对剩余污泥上清液的影响。结果表明,上清液中COD及TN的含量随超声时间的延长成线性增加,在超声处理15 min后增加率开始减小;SS随超声时间的延长先减少后增加,在超声处理15 min时达到最小;随超声时间的延长,上清液的温度持续上升,p H值变化很小。

This paper focuses on the returned sludge between oxidation ditch and secondary settling tank of Tuanzhou sewage treatment plant in Yiyang and studies the influence of ultrasonic treatment on the supernatant of excess sludge. The results have showed that the COD and TN content in the supernatant linearly increase as ultrasonic time increases, and the increasing rate starts to decrease after ultrasonic treatment for 15 minutes; the SS content is reduced first and increased later as ultrasonic time increases, and it reaches the minimum value in the 15 minutes after ultrasonic treatment; as ultra...