稠油污水外排处理工艺提标改造技术研究与应用  

Research and Application of Upgrading Technology of Heavy Oil Sewage Effluent Treatment Process

作　　者：张杨 姚晓林 ZHANG Yang;YAO Xiaolin(ZhongyuanPetroleum Engineering Design Co.,Ltd,Sinopec)

机构地区：[1]中国石化中原石油工程设计有限公司

出　　处：《石油石化节能》2019年第2期30-33,I0003,共5页Energy Conservation in Petroleum & PetroChemical Industry

摘　　要：针对目前稠油污水的水质特性以及超滤膜技术在水处理中的广泛应用,选择合适的超滤工艺对稠油污水进行深度处理。基于"生物膜水解酸化+生物膜接触氧化"的稠油污水处理工艺,采用增加"两级过滤+一级超滤"的工艺方法对稠油污水进行深度处理。监测数据表明:经深度处理后的稠油污水,平均COD的质量浓度由148 mg/L下降到105 mg/L,平均含油量为0.19 mg/L,平均悬浮物的质量浓度为0.25 mg/L,外排水质连续稳定实现COD小于120 mg/L的要求。该过滤系统具有良好的COD去除效果,处理后的水质达到污水外排的水质要求,适用于稠油污水的深度处理。In view of the water quality characteristics of heavy oil wastewater and the wide application of ultrafiltration membrane technology in water treatment,a suitable ultrafiltration process was selected for advanced treatment of heavy oil wastewater.After the biochemical system of"biofilm hydrolysis acidification+biofilm contact oxidation",the two-stage filtration+ultrafiltration system was added to the sewage treatment process.The monitoring data showed that the average COD convent of heavy oil wastewater after deep treatment was decreased from 148 mg/L to 105 mg/L,continuously and stably met the water effluent standard(COD<120 mg/L).The average content of oil and suspended substance was only 0.19 mg/L,0.25 mg/L.It can be seen that this ultrafiltration process can significantly reduce the COD content in the heavy oil wastewater treatment system and the treated water quality meet the requirements of sewage discharge,which is suitable for the advanced treatment of heavy oil sewage.

关 键 词：稠油污水 超滤工艺 去除COD 超滤膜 

分 类 号：X741[环境科学与工程—环境工程]