微电解-Fenton联合工艺处理酸化压裂废水  

The Disposal of Acidizing and Fracturing Wastewater by process integration of Microeletrolysis-Fenton

作　　者：蒋宝云[1] 李浩[2] 董国如[2] 王宗廷[2] 俞然刚[2] 

机构地区：[1]胜利油田鲁明油气勘探开发公司,山东东营257060 [2]中国石油大学(华东),山东青岛266555

出　　处：《环境科学与技术》2010年第S1期327-331,共5页Environmental Science & Technology

摘　　要：采用微电解-Fenton氧化法对酸化压裂模拟废水进行处理,有效地降低了废水的COD,试验中考察了微电解反应进水pH值、铁碳质量比、反应时间以及联合Fenton工艺中废水的pH值、H2O2加入量、反应时间对COD去除率的影响。结果表明,微电解法工艺的优化条件:pH2.5左右,反应停留时间120min,铁碳质量比5∶1;Fenton反应的优化条件:微电解出水调pH4.0左右,反应时间75min,H2O(2质量分数为10%)加入量7.5ml/L,最终处理的出水COD去除率达64.8%,联合工艺的COD去除率比单一的微电解法提高了26.3%,为后续的处理创造了有利的条件。Microelectrolysis method and microelectrolysis-Fenton method,microelectrolysis enhanced by addition with H2O2,were investigated for the acidizing and fracturing wastewater treatment.The influence of pH,the Fe/C weight ratio,reaction time to Microelectrolysis and the influence of pH value,the dosage of H2O2,reaction time to Fenton reaction are considered. The optimal conditions of the treatment were determined as follows:pH is about 4.0,the Fe/C weight ratio is 5∶1 and reaction time 120min for microe1ectrolysis method,while the dosage of H2O2 7.5ml/L,pH4.0,and reaction time 75min for the microelectrolysis-Fenton method.Under the above-mentioned conditions for the microelectrolysis-Fenton method,about 64.8% removal were obtained for COD,its removal rate of COD than microelectrolysis is higher by 26.3%. The method of microelectrolysis-Fenton created an advantageous condition for the following trectment.

关 键 词：微电解 FENTON COD 酸化压裂废水 

分 类 号：X703.1[环境科学与工程—环境工程]