UBF反应器COD去除率下降原因分析和解决措施  

Reason analysis and countermeasures for the decreasing CODCr removal rate of UBF reactor

作　　者：浦江[1] 

机构地区：[1]中国石化仪征化纤股份有限公司水务中心,江苏仪征211900

出　　处：《工业用水与废水》2013年第4期46-50,共5页Industrial Water & Wastewater

摘　　要：针对PTA废水处理主体工艺中UBF反应器CODCr的去除率不断下降的问题,从UBF反应器的厌氧污泥活性、废水停留时间、重金属积累、进水ρ(VFA)/ρ(CODCr)值等方面进行原因分析,并从监测预判、运行控制、工艺改进等方面提出解决措施。截至2012年底所有UBF反应器CODCr的去除率均已恢复至80%以上。实践证明,各种解决措施具有针对性并且效果显著。In view of the fact that, the CODc~ removal efficiency of UBF reactor, the main process of PTA wastewater treatment, decreased continuously. The influencing factors includes： activity of anaerobic sludge sys- tem in UBF reactor, wastewater retention time, accumulation of heavy metals, and p（VFA）/p（CODcr） value in the influent water, were analyzed. And then, some relevant solving measures from aspects of monitoring pre-estima- tion, operation control, process modification, and so on, were put forward. By the end of 2012, the removal rates of CODCr in all UBF reactors were recovered to above 80%. The practice showed that, all the mentioned measures were targeted, essential and effective.

关 键 词：UBF反应器 COD去除率 厌氧污泥 废水停留时间 填料 

分 类 号：X703.3[环境科学与工程—环境工程]