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
中图分类号:
郑威城,汪清清,王忠泉,秦树林. 微电解耦合Fenton氧化处理煤层气产出水实验研究[J]. 工业水处理, 2023, 43(1): 131-136.
Weicheng ZHENG,Qingqing WANG,Zhongquan WANG,Shulin QIN. Experimental study of microelectrolysis coupled with Fenton oxidation for treatment of coalbed methane produced water[J]. Industrial Water Treatment, 2023, 43(1): 131-136.