微电解耦合Fenton氧化处理煤层气产出水实验研究  

Experimental study of microelectrolysis coupled with Fenton oxidation for treatment of coalbed methane produced water

作　　者：郑威城 汪清清 王忠泉 秦树林 ZHENG Weicheng;WANG Qingqing;WANG Zhongquan;QIN Shulin(Hangzhou Research Institute of China Coal Technology&Engineering Group,Hangzhou 311201,China;Deqing County Ecological Environment Monitoring Station,Deqing 313200,China)

机构地区：[1]中煤科工集团杭州研究院有限公司,浙江杭州311201 [2]德清县生态环境监测站,浙江德清313200

出　　处：《工业水处理》2023年第1期131-136,共6页Industrial Water Treatment

摘　　要：探究了破乳混凝沉淀预处理结合微电解耦合Fenton氧化工艺对煤层气产出水的降解效果。结果表明,微电解耦合Fenton氧化工艺,在微电解pH为3.0,曝气强度为150 L/h,Fenton氧化反应pH为3.5,H_(2)O_(2)投加量为800mg/L的条件下,微电解COD去除率为66.85%,Fenton氧化反应COD去除率为60.30%,综合COD去除率达86.84%,整体工艺最终出水COD为174.21 mg/L,悬浮物质量浓度为2.64 mg/L,石油类质量浓度为1.21 mg/L,整体工艺的悬浮物去除率为99.01%,石油类去除率为97.40%,COD去除率为93.14%,实现了煤层气产出废水的高效处理。The degradation effect of emulsion-breaking coagulation and precipitation pretreatment combined with micro-electrolysis coupled with Fenton oxidation process on coalbed methane produced water were investigated.The results showed that the micro-electrolysis coupled with Fenton oxidation process,under the conditions of microelectrolysis pH 3.0,aeration intensity 150 L/h,Fenton oxidation pH 3.5 and hydrogen peroxide dosage 800 mg/L,the removal rate of micro-electrolysis COD was 66.85%,the removal rate of Fenton COD was 60.30%and the overall COD removal rate reached 86.84%,the final effluent COD of the overall process was 174.21 mg/L.The suspended solids were 2.64 mg/L and the petroleum concentration was 1.21 mg/L.The overall process achieved 99.01% removal of suspended solids,97.40%removal of petroleum and 93.14%removal of COD,which realized the efficient treatment of coalbed methane output wastewater.

关 键 词：煤层气产出水 微电解 FENTON氧化 协同微曝气 

分 类 号：X703.1[环境科学与工程—环境工程] TE37[石油与天然气工程—油气田开发工程]