摘要
针对某城市污水处理厂在冬季运行过程中发生的二沉池突发性漂泥现象,测试并分析了其进水量、进水水质、pH值、微生的含量、水温等.结果表明,由于进水水量波动较大、进水水质异常及控制运行不当,引起了二沉池污泥反硝化.通过调整进水水量、氧化沟曝气量、回流量、剩余量等措施,有效抑制了二沉池污泥的上浮.以期为城市污水处理厂的实际运行管理提供技术参考.
Based on the phenomenon of the secondary settling tank burst drift mud in the winter running in a municipal sewage treatment plant,the reasons of the phenomenton were analyzed. The results show that the secondary settling tank sludge denitrification was caused by water fluctuations,abnormal influent water quality and improper control operation. The sludge floating can be effectively inhibited by regulating the water volume, regulating aeration of oxidation ditch, regulating amount of returned sludge, regulating amount of excessed sludge and so on.
出处
《西安工程大学学报》
CAS
2013年第2期240-244,共5页
Journal of Xi’an Polytechnic University
基金
西安工程大学博士科研启动基金(BS0715)
留学回国人员科研启动基金(教外司留[2010]1561号)
关键词
DE型氧化沟
二沉池污泥上浮
反硝化
DE type oxidation diteh
sludge floating in secondary sedimentation tank
denitrifieation
