电絮凝处理油田生化出水  

Electrocoagulation treatment of oilfield biochemical sewage

作　　者：陈斌[1,2] 王海峰[2] 吴明铂[1] 郑经堂[1] 

机构地区：[1]中国石油大学(华东)重质油国家重点实验室,东营257061 [2]胜利石油管理局,东营257000

出　　处：《环境工程学报》2012年第7期2154-2158,共5页Chinese Journal of Environmental Engineering

基　　金：教育部新世纪优秀人才支持计划项目(NCET-10-0768);教育部科学技术重点项目(109100);国家自然科学基金面上项目(20876176);中央高校基本科研业务费专项资金资助项目(09CX04037A);山东省博士基金(2008BS09013);山东省自然基金(Q2007B02)

摘　　要：为了减轻对后续处理中超滤膜的污染,采用电絮凝法处理油田生化出水,降低油田生化出水中的有机物含量。研究了电流强度、曝气时间和pH值对水中总有机碳(TOC)和浊度除去效果的影响以及pH值随曝气时间的变化趋势,通过红外光谱对絮凝处理前后水中总溶解固体进行了分析,优化了电絮凝的工艺条件。研究表明,当水流速度控制在50mL/s,电流强度为2 A,500 mL絮凝出水的曝气时间为30 min时,整套絮凝工艺对TOC的去除率为48%,浊度去除率为42.9%,COD去除率为44%。Oilfield biochemical sewage was treated by electrocoagulation to remove impurities and relieve subsequent ultrafiltration membrane fouling. Effects of current intensity, aeration time, and pH value on the re- moval efficiency of TOC and turbidity were investigated, and the change of pH value caused by aeration time was studied. FTIR was employed to analyze the sev^ages before and after electroeoagu[ation treatment. The operation conditions of electrocoagulation treatment for oilfield biochemical sewage were optimized. Results show that the removal efficiencies of TOG, turbidity and COD are 48% , 42.9% , and 44% for 500 niL of electrocoagulation sewage when flow speed, current intensity, and aeration time are 50 mL/s, 2 A and 30 min,respectively.

关 键 词：生化出水 电絮凝 曝气时间 总有机碳 浊度 

分 类 号：X703.1[环境科学与工程—环境工程]