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时间:2020-03-26
《Fenton氧化与活性炭吸附深度处理高含盐难降解海上采油废水的研究.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第43卷第11期应用化工Vo1.43No.1】2014年11月AppliedChemicalIndustryNov.2014Fenton氧化与活性炭吸附深度处理高含盐难降解海上采油废水的研究杨伟。,袁珊珊’,宋震宇,,李野卫,张景辉(j.天津大学环境科学与工程学院,天津300072;2.天滓生态城环保有限公司,天津300467;3.天津市污染场地治理修复技术工程中心,天津300467;4,天津生态城环境检测中心有限公司,天津300467)摘要:采用Fenton高级氧化和活性炭吸附法处理经自然沉降、粗粒化高效聚结、分离工艺、气浮工艺、混凝沉降工艺处理后的
2、高含盐难降解的采油废水中的COD和油污,考察了Fenton试剂的配比和活性炭吸附时间等因素的影响。结果表明,废水pH=3,Fenton试剂配比C(H202)/c(COD)=2,(H202)/n(Fe)=10,氧化40min时,Fenton高级氧化对废水中COD、含油量去除效果最佳。氧化对活性炭吸附具有促进作用,吸附时间45min,COD去除率达75%,出水COD为48.31m#L,含油量为1.76mg/L,达到《辽宁省地方标准污水综合排放标准(DB21/l627—2008)》要求。关键词:采油废水;Fenton氧化;活性炭吸附;COD;含油量;氧化促进
3、作用中图分类号:TQ085文献标识码:A文章编号:1671—3206(2014)I1—2060—05Studyonadvancedtreatmentofhard—biodegradableandhypersalineoffshoreoilwastewaterbyFentonoxidationcooperatedthactivatedcarbonadsorptionYANGWei,,。YUANShan—shan,,¨SONGZhen—yu',。,,,Ye,。,.ZHANG,ling—hui’’(1.SchoolofEnvironmentalScience
4、andEngineering,TianjinUniversity,Tianjin300072,China;2.TianjinEco·cityEnvironmentalProtectionCo.,Ltd.,Tianjin300467,China;3.TianjinContaminatedSiteRemediationTechnologyEngineeringCenter,Tianjin300467,China;4.TianjinEco—cityEnvironmentalTestCenterCo.,Ltd.,Tianjin300467,China)Abst
5、ract:Thehard—biodegradableandhypersalineoffsboreoilwastewatertreatedbynaturalsedimenta—tion,coalescence,separation,airflotationandcoagulationwouldbetreatedbyFentonoxidationandactiva.tedcarbonadsorptiontoreducethecontentofCODandoil.TheproportionanddosageofFentonreagentandthebesta
6、bsorptiontimeofactivecarbonwerestudied.TheresultsshowedthatattheconditionofPH=3,C(H202)/c(COD)=2,n(H202)/n(Fe)=10,oxidationtimewas40min,thebestremovalrateofCODandoilcontentwouldbeobtained.theoxidationofactivatedcarbonadsorptionhasapromotingeffect.Thebestadsorptiontimewas45rain.a
7、ndCODremovalratereached75%.theresidualconcentra.tionofCODandoilcontentwere48.31mg/L,1.76mg/L.respectively.WastewatertreatmentwithFen—tonoxidationandactivatedcarbonadsorptioncanmeetthefirstleveloftheLiaoningIntegratedWastewaterDischargeStandard(DB21/1627~2008).Keywords:oilproduci
8、ngwastewater;Fentonoxidation;activatedcarbonads
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