Treatment of Wastewater from Refinery Production
Using BAF

ZHONG Hua-wen,LI
Xiao-ming,HE Dong-sheng
(1. Department of Environmental
Engineering,Maoming College,Maoming 525000,China;
2.Maoming
Petrochemical Company,Maoming 525000,China)

　　Abstract: The mass concentration of phenol in the
effluent water from the hydrocraking,hydrofining and platforming
units of a refinery was over 100mg/L.This effuent water was
pre-treated using BAF and the strain cultivated in domestic sludge.
The results obtained were as follows:under the conditions that the
hydraulic retention time was 2.0h,the aerating capacity was
0.25m/h,the pHwas 7.0-8.0,the temperature was 25-40℃,and the mass
concentration of DO was higher than 2.5mg/L,the axerage mass
concentrations of phenol and COD in the effuent water were 8.5mg/L
and 140mg/L respectively,and the average removal rates of them
exceeded 90% and 70% respectively.
　　Key words: wastewater
form refinery production;phenol:BAF (Biological Aerated Filter)

　　炼油厂加氢裂化、加氢精制和铂重整等装置所排废水排放量约70t／h，酚类污染物在100～160mg／L，这股高酚废水未作任何处理直接排至污水处理场，本实验采用上向流曝气生物滤池(Biological
Aerated Filter,简称BAF)对含酚废水的处理进行了研究。

1 实验部分

1.1
含酚废水水质分析
　　课题组对含酚废水水质进行了分析，监测方法[1]：，及测试结果的统计见表1。
　　由表1可见，该废水的COD，BODs，硫化物，石油类和氨氮等污染物均处于常见水平，而酚污染则处于较高状态，是这股废水的主要污染物；由于酚类物质易为微生物降解[1]，因此废水的可生化性较好，结果也表明m(BOD5)／m(COD)值较高，平均为0.56。