Fe/C微电解耦合H_2O_2氧化处理页岩气钻井废水  

Oxidation treatment of shale gas drilling wastewater by Fe/C micro-electrolysis combined with H_2O_2

作　　者：杨德敏[1,2,3] 夏宏[1,2,3] 程方平[1,2,3] 袁建梅[1,2,3] YANG Demin XIA Hong CHENG Fangping YUAN Jianmei(Key Laboratory for Shale Gas Resource ＆ Exploration, Ministry of Land and Resources, Chongqing Institute of Geology and Mineral Resources, Chongqing 400042, China Chongqing Engineering Research Center for Shale Gas Resource ＆ Exploration, Chongqing Institute of Geology and Mineral Resources, Chongqing 400042, China Chongqing ShaIe Gas Research Center of State Key Laboratory of Petroleum Resource and Prospecting, Chongqing 400042, China)

机构地区：[1]国土资源部页岩气资源勘查重点实验室(重庆地质矿产研究院),重庆400042 [2]重庆市页岩气资源与勘查工程技术研究中心(重庆地质矿产研究院),重庆400042 [3]油气资源与探测国家重点实验室重庆页岩气研究中心,重庆400042

出　　处：《环境工程学报》2016年第11期6473-6478,共6页Chinese Journal of Environmental Engineering

基　　金：重庆市科学技术委员会资助项目(cstc2015shmszx20018;cstc2013yykf A20002);重庆市科委首批"三高合一"专项资助项目

摘　　要：采用Fe/C微电解耦合H_2O_2工艺对经复合混凝处理后的某页岩气井钻井废水进行处理,考察了Fe/C质量比、Fe/C投加量、溶液pH值、气水比、H_2O_2(30%)投加量和反应时间对COD去除率的影响。结果表明,耦合工艺最佳实验条件为Fe/C质量比1∶1、Fe/C投加量500 g·L-1、溶液pH值2.5、气水比20∶1、H_2O_2(30%)投加量6 m L·L-1、反应时间120 min。最佳工艺条件下,页岩气钻井废水经处理后,出水COD质量浓度为89.54 mg·L^(-1),去除率达到81.60%。Effluent of shale gas drilling wastewater from coagulation treatment was treated by Fe / C micro-electrolysis combined with H_2O_2 method. The effects of Fe / C mass ratio,Fe / C dosage,solution pH,air / water ratio,H_2O_2（ 30%） dosage,and reaction time were investigated for their effects on COD removal rate. Optimum conditions were as follows： Fe / C mass ratio 1 ∶ 1,Fe / C dosage 500 g·L-1,solution pH 2. 5,air/water ratio20 ∶ 1,H_2O_2（ 30%） dosage 6 m L·L^（-1）,and reaction time 120 min. Under these conditions,the effluent concentration of COD reduced to 89. 54 mg·L-1and COD removal rate reached 81. 60%.

关 键 词：FE/C微电解 H2O2 页岩气钻井废水 耦合工艺 

分 类 号：X703[环境科学与工程—环境工程]