基于流态改进的仓式微电解反应器处理油田废水研究  

Research on a honeycombed micro-electrolysis reactor based on flow improvement and its application in oil field wastewater treatment

作　　者：韩本利 李甲亮 周春海 王杰 田晨 王桂祥 Han Benli;Li Jialiang;Zhou Chunhai;Wang Jie;Tian Chen;Wang Guixiang(Binzhou Environmental Protection Agency,Binzhou,Shandong,China;College of Biological and Environmental Engineering,Binzhou University,Binzhou,Shandong,China;College of Environment and Safety Engineering,Qingdao University of Science and Technology,Qingdao,Shandong,China)

机构地区：[1]滨州市环境保护局 [2]滨州学院生物与环境工程学院 [3]青岛科技大学环境与安全工程学院

出　　处：《石油与天然气化工》2018年第5期100-105,共6页Chemical engineering of oil & gas

基　　金：国家大学生创新创业训练计划项目"一种用于油田废水处理的仓式微电解反应器研发"(201610449058)

摘　　要：针对传统型Fe-C微电解反应器(1~#)易堵塞、易短流的缺点,设计了改进型仓式微电解反应器(2~#),并比较了两种反应器对胜利油田某采油厂废水的处理效果。结果表明,在pH值为4、进水流速为0.2m/s、反应区高度为40cm、进水COD值为480mg/L的条件下,2#和1#最佳反应时间分别为30min和60min,COD去除率分别为86%和70%,浊度去除率分别为98.4%和94%。2~#反应器通过改善流态,增大了废水与电解质材料的接触面积,缩短了水力停留时间,提高了COD和浊度的去除率。某油田的中试结果表明,2#反应器对高浓措施废液悬浮物、黏度、总铁、总硬度平均去除率分别为38.78%～42.31%、12.54%～32.38%、69.23%～71.17%和37.29%～61.76%,较改进前均有较大提高,处理后水质达到该油田采出水回注技术指标要求。Aiming at the shortcome of traditional Fe-C micro-electrolysis reactor(1#),which was easy to be blocked and short-circuiting current,an improved honeycombed micro-electrolysis reactor(2#)was designed.The effects of two kinds of reactors on the wastewater treatment from an oil production plant in Shengli Oilfield were compared.The results showed that:under the conditions of pH 4,inlet velocity 0.2 m/s,reaction height 40 cm,and influent COD 480 mg/L,the 2#and 1#reactors’reaction time were 30 min and 60 min,the removal rate of COD were 86%and 70%,and the turbidity removal rate were 98.4%and 94%respectively.It can be seen that the improved flow state of 2#reactor increased the contact area between wastewater and electrolytes,reduced the hydraulic retention time,and improved the removal rate of COD and turbidity.The pilot-scale application results in Changqing Oilfield showed that the average removal rate of suspension,viscosity,total iron and total hardness in 2#reactor for different concentration wastewaters were 38.78%-42.31%,12.54%-32.38%,69.23%-71.17%and 37.29%-61.76%respectively,which were greatly improved,compared with 1#,and the treated water could meet the technological indices set by the oilfield produced water reinjection regulation.

关 键 词：油田废水 流态改进 仓式微电解反应器 中试 

分 类 号：X741[环境科学与工程—环境工程]