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芬顿试剂处理煤矿矿井水中硫化氢技术
引用本文:林海,王亚楠,韦威,余玉江.芬顿试剂处理煤矿矿井水中硫化氢技术[J].煤炭学报,2012,37(10):1760-1764.
作者姓名:林海  王亚楠  韦威  余玉江
作者单位:1.北京科技大学 土木与环境工程学院,北京 100083;
2.金属矿山高效开采与安全教育部重点实验室,北京 100083
基金项目:国家安全生产监督管理总局2010年度安全生产重大事故防治关键技术重点科技资助项目
摘    要:为了消除煤矿矿井下硫化氢所造成的安全隐患,使用芬顿试剂对矿井水中硫化氢进行了处理,主要考察了过氧化氢的投加量、FeSO4 ·7H2 O的投加量、pH值、反应时间、摇床转速及反应温度等对处理效果的影响,并讨论了Fenton试剂高级氧化技术除硫化氢的反应动力学。结果表明:Fenton试剂的最佳用量为0.67 g/L FeSO4 ·7H2 O+0.67 mL/L H2 O2 ,反应适应pH值为6~10,最适水流扰动强度为160 r/min的摇床转速,最佳反应温度25 ℃,最佳反应时间10 min。在最佳条件下,Fenton试剂处理初始浓度为140 mg/L的硫化氢水溶液时去除率达到93.14%,水中剩余硫化氢浓度仅为2.381 mg/L,有效防止了硫化氢的溢出。Fenton试剂处理水中硫化氢的过程可以用准二级动力学来描述。

关 键 词:矿井水  硫化氢  芬顿试剂  动力学
收稿时间:2011-09-15

Treatment of H2S in mine water using Fenton reagent
LIN Hai,WANG Ya-nan,WEI Wei,YU Yu-jiang.Treatment of H2S in mine water using Fenton reagent[J].Journal of China Coal Society,2012,37(10):1760-1764.
Authors:LIN Hai  WANG Ya-nan  WEI Wei  YU Yu-jiang
Institution:1.School of Civil and Environmental Engineering,University of Science and Technology Beijing,Beijing 100083,China;2.Key Laboratory of the Ministry of Education of China for High-Efficient Mining and Safety of Metal Mines,Beijing 100083,China;3.Technical Center,Sichuan Coal Industry Group Limited Liability Company,Chengdu 610091,China)
Abstract:In order to eliminate hidden danger caused by H2S in the coal mine,Fenton reagent was used to treat H2S in the mine water.In this study,the effects of H2 O2 dosage,FeSO4 ·7H2 O dosage,pH,reaction time,rotation speed,reaction temperature on the treatment efficiency were researched.In addition,the study investigated the kinetics of removing hydrogen sulfide using Fenton reagent.The results show that the optimum dosage of Fenton reagent is 0.67 g/L FeSO4 ·7H2 O+0.67 mL/L H2 O2 ,the suitable pH is 6-10,the optimum flow disturbance intensity is 160 r/min of bed rotation speed,and 25 ℃ for 10 min.Under optimal conditions,when the initial concentration of hydrogen sulfide is140 mg/ L,the removal rate of hydrogen sulfide can reach 93.14% and the concentration of residual hydrogen sulfide in water is only 2.381 mg/L.The process of the removing reaction of H2S by Fenton reagent can be described to be the quasi second order kinetics.
Keywords:mine water  H2S  Fenton reagent  kinetics
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