石化废水生化处理工艺优化及提标改造  

Optimization and upgrading of biochemical treatment process for petrochemical wastewater

作　　者：陈燕斌 CHEN Yanbin(Sinopec Zhenhai Refining and Chemical Conpany,Ningbo 315000,China)

机构地区：[1]中国石化镇海炼化分公司,浙江宁波315000

出　　处：《化工环保》2020年第3期342-346,共5页Environmental Protection of Chemical Industry

摘　　要：针对已建炼化污水处理装置提质达标的需求,采用旋流强化工艺对缺氧-好氧(A/O)池进行改造,生化出水TN由(32.8±8.9)mg/L降至(25.6±5.7)mg/L,TN平均去除率提高了约10百分点,且出水TN达标率达到100%,出水水质稳定达到GB 31570—2015《石油炼制行业污染物排放标准》的TN排放限值要求。旋流强化工艺技术先进,便于实施,适用于石化行业污水处理装置的改造升级,具有广泛的应用前景。In order to meet the demand of improving the effluent quality of the established refinery sewage treatment plant,the anoxic-aerobic(A/O)pool was retrofitted with the cyclone strengthening process.TN of the effluent after biochemical treatment was reduced from(32.8±8.9)mg/L to(25.6±5.7)mg/L,the average TN removal rate increased by about 10 percentage points,and the standard-meeting rate of effluent TN reached 100%.The water quality of the effluent reached the TN emission limit of GB 31570-2015.The advanced and convenient cyclone strengthening technology is suitable for upgrading of petrochemical sewage treatment plant and has a wide application prospect.

关 键 词：缺氧-好氧过程 旋流强化 炼油污水 深度脱氮 

分 类 号：X78[环境科学与工程—环境工程]