基于Fenton氧化法的煤化工废水处理工艺优化实验  

Optimization experiment of coal chemical wastewater treatment process based on Fenton oxidation method

作　　者：赵晓艳 杨永林[1] ZHAO Xiao-yan;YANG Yong-lin(Yulin Vocational and Technical College,Yulin 719000,China)

机构地区：[1]榆林职业技术学院,陕西榆林719000

出　　处：《化学工程师》2025年第3期47-50,共4页Chemical Engineer

基　　金：陕西省教育厅青年创新团队项目(24JP219):煤气化渣负载纳米零价铁电芬顿强化处理兰炭废水研究;榆林市科技计划项目(2024-CXY-144):煤气化渣基复合碳材料制备及其电催化处理兰炭废水应用研究。

摘　　要：为提高水资源利用率,分别采用Fenton氧化法和颗粒活性炭吸附法处理煤化工废水,并以吡啶去除率为指标对工艺条件进行优化。结果表明,与颗粒活性炭吸附工艺相比,Fenton氧化法更适合去除煤化工废水中的吡啶。优化后的Fenton氧化法工艺条件为:n_(Fe SO_(4)·7H_(2)O∶nH_(2)O_(2))=1∶30,H_(2)O_(2)浓度为40mmol·L^(-1),反应时间为20min,初始pH值为3。在此工艺条件下,Fenton氧化法吡啶去除率高达93.4%,可提高煤化工废水回用性。Fenton氧化法可以快捷、高效地去除煤化工废水中的吡啶有机物,可为煤化工废水回用工艺的研究发展提供参考。To improve the utilization rate of water resources,Fenton oxidation method and granular activated carbon adsorption method were used to treat coal chemical wastewater,and the process conditions were optimized with pyridine removal rate as the indicator.The results indicated that compared with the granular activated carbon adsorption process,Fenton oxidation method was more suitable for removing pyridine from coal chemical wastewater.The optimized Fenton oxidation process conditions were:n_(FeSO_(4)·7H_(2)O:nH_(2)O_(2))=1∶30,H_(2)O_(2) concentration of 40mmol·L^(-1),reaction time of 20 minutes,and initial pH value of 3.Under these process conditions,the Fenton oxidation method had a pyridine removal rate of up to 93.4%,which could improve the reusability of coal chemical wastewater.Fenton oxidation method can quickly and efficiently remove pyridine organic compounds from coal chemical wastewater,providing a reference for the research and development of coal chemical wastewater reuse processes.

关 键 词：FENTON氧化法 颗粒活性炭 吡啶 煤化工 反应时间 

分 类 号：X703[环境科学与工程—环境工程]