Fenton试剂氧化深度处理食品添加剂废水_许金花

Fenton试剂氧化深度处理食品添加剂废水_许金花食品工业科技ScienceandTechnologyofFoodIndustry研究与探讨2008年第09期Fenton试剂氧化深度处理食品添加剂废水许金花,汪晓军＊,陈志伟(华南理工大学环境科学与工程学院,广东广州510006)摘要:采用Fenton氧化法深度处理食品添加剂经常规二级处理后的废水。研究了H2O2/CODcr投加量比、Fe2+/H2O2投加量比、反应pH和反应时间对废水CODcr去除效果的影响。结果表明,通过Fenton氧化,可使废水中CODcr由393.2mg/L降到64.3mg/L,去除率达83.6%;处理该废水的最适条件为:H2O2/CODcr=3,Fe2+/H2O2=1,pH4,反应时间60min。关键词:Fenton试剂,化学氧化,食品添加剂,食品废水AdvancedtreatmentoffoodadditiveswastewaterbyFentonreagentoxidationXUJin-hua,WANGXiao-jun＊,CHENZhi-wei(SchoolofEnvironmentalScience＆Engineering,SouthChinaUniversityofTechnology,Guangzhou510006,China)Abstract:TheadvancedwastewatertreatmentoffoodadditiveswasstudiedbyFentonoxidation.TheeffectsofH2O2/CODcr,Fe2+/H2O2,pHandreactiontimeontheremovalofCODcrwerestudied.TheresultsshowedthatCODcrcouldbereducedfrom393.2mg/Lto64.3mg/L,theremovalofCODcrwas83.6%,byFentonoxidation.Forthiswastewater,theoptimumreactionconditionwere:H2O2/CODcr=3,Fe2+/H2O2=1,pH4,reactiontime60min.Keywords:Fenton;chemicaloxidation;foodadditives;wastewater中图分类号:TS2