微 电解 -Fenton 氧化 法 处理炼化企业二级出水研究
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2020-04-22 19:29:41
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第40卷张国珍,孙加辉,武福平.微电解-Fenton氧化法处理炼化企业二级出水研究[J].环境科学与技术,2017,40(9):148-152.ZhangGuozhen,SunJiahui,WuFuping.Studyontreatmentofsecondaryeffluentfrompetroleumrefiningindustryusingmicroelectrolysis-Fentonoxidationprocess[J].Environ-mentalScience&Technology,2017,40(9):148-152.微电解-Fenton氧化法处理炼化企业二级出水研究张国珍,孙加辉*,武福平(兰州交通大学环境与市政工程学院,甘肃兰州730070)摘要:利用Fenton强化微电解工艺对炼化企业二级出水展开处理研究,以出水有机物(COD)为考察指标,通过单因素分析法研究确定了2种微电解-Fenton氧化组合工艺:微电解-Fenton联合工艺和微电解-Fenton耦合工艺的最佳工艺参数。实验结果表明,微电解-Fenton联合工艺的最佳工艺参数为:铁炭微电解单元进水pH=3,Fe/C=3/2,Fe投加量为150g/L,反应时间为2.5h,海绵铁粒径为2~3mm,曝气量为5L/min,Fenton氧化单元H2O2投加量为0.4mL/L,反应时间为60min;微电解-Fenton耦合工艺的最佳工艺参数为:进水pH=3,Fe/C=3/2,Fe投加量为150g/L,海绵铁粒径为2~3mm,曝气量为5L/min,H2O2投加量为0.3mL/L,反应时间为90min。对2个组合工艺进行对比分析,结果显示微电解-Fenton耦合工艺的处理效果较佳,对炼化企业二级出水有机物处理率达89.30%,可生化性可达到38.2%。关键词:二级出水;微电解法;Fenton氧化法;单因素分析;对比分析中图分类号:X506文献标志码:Adoi:10.3969/j.issn.1003-6504.2017.09.024文章编号:1003-6504(2017)09-0148-05StudyonTreatmentofSecondaryEffluentfromPetroleumRefiningIndustryUsingMicroElectrolysis-FentonOxidationProcessZHANGGuozhen,SUNJiahui*,WUFuping(SchoolofEnvironmentalandMunicipalEngineering,LanzhouJiaotongUniversity,Lanzhou730070,China)Abstract:ThetreatmentofsecondaryeffluentofrefiningenterprisesbyFentonenhancedmicro-electrolysisprocesswasstudied.Takingremovalefficiencyofchemicaloxygendemand(COD)astheindex,theoptimumparametersoftwocombinedprocessesofmicroelectrolysisprocessandFentonoxidationprocessincludingmicroelectrolysis-Fentoncombinedprocessandmicroelectrolysis-Fentoncouplingprocessweredeterminedbysinglefactoranalysis.Theresultsshowedthattheopti-mumparametersofmicroelectrolysis-FentonprocessarepHof3,Fe/Cmassratioof1.5,Feof150g/Landreactiontimeof2.5hinmicroelectrolysisunit;andspongeironparticlesizeof2~3mm,theaerationrateof5L/min,H2O2of0.4mL/L,andreactiontimeof1hintheFentonoxidationunit;theoptimumparametersofmicroelectrolysis-FentoncouplingprocessarepHof3,Fe/Cmassratioof1.5,Feof150g/L,spongeironparticlesizeof2~3mm,aerationrateof5L/min,H2O2of0.3mL/L,reactiontimeof90min.Itisprovedbythecomparativea
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