工业水处理 ›› 2023, Vol. 43 ›› Issue (1): 131-136. doi: 10.19965/j.cnki.iwt.2022-0212

• 试验研究 • 上一篇    下一篇

微电解耦合Fenton氧化处理煤层气产出水实验研究

郑威城1(),汪清清2,王忠泉1,秦树林1   

  1. 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
  • 收稿日期:2022-11-10 出版日期:2023-01-20 发布日期:2023-01-16
  • 作者简介:郑威城(1995— ),硕士,助理工程师。电话:0571-82728709,E-mail:1398872103@qq.com

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

Weicheng ZHENG1(),Qingqing WANG2,Zhongquan WANG1,Shulin QIN1   

  1. 1.Hangzhou Research Institute of China Coal Technology & Engineering Group, Hangzhou 311201, China
    2.Deqing County Ecological Environment Monitoring Station, Deqing 313200, China
  • Received:2022-11-10 Online:2023-01-20 Published:2023-01-16

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,H2O2投加量为800 mg/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。

关键词: 煤层气产出水, 微电解, Fenton氧化, 协同微曝气

Abstract:

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 micro-electrolysis 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.

Key words: coalbed methane produced water, micro-electrolysis, Fenton oxidation, collaborative micro-aeration

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