固定化菌藻组合对含油污水的处理研究
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2020-03-07 10:33:56
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安徽农业科学,JournalofAnhuiAgri.Sci.2015,43(13):213—216责任编辑杨莹莹责任校对况玲玲固定化菌藻组合对含油污水的处理研究陈庆国,王杏娣,刘梅,孑j、静亚,穆军(1.浙江海洋学院海洋科学与技术学院,浙江舟山3l6o22;2.浙江国际海运职业技术学院,浙江舟山316000)摘要[目的]优化固定化茵藻对含油污水的降解条件。[方法]首先,研究了固定化菌藻组合对含油污水的处理效果,并对降解前后的原油进行红外光谱、GC.F1D及GC—MS分析,然后考察了原油浓度、降解温度、溶液pH、溶液盐度等条件对固定化菌藻降解原油效果的影响,最后对固定化茵藻的可重复利用性能进行研究。[结果]经过15d的降解,固定化茵藻对3g/L原油的降解率可达91.8%。固定化茵藻与固定化单菌、固定化单藻相比,茵藻组合表现出协同作用,对主要的正构烷烃及多环芳烃的去除效率增加。当原油浓度为1—7L,pH为6~8,温度为25~35℃,NaC1浓度<1.5%时,固定化茵藻具有较高的生物量,并对原油具有较高的去除率。固定化茵藻重复利用3次以内(每次5d),对其降解原油的性能影响不大。[结论]该研究为固定化茵藻组合对含油污水的处理提供了理论依据。关键词含油污水;固定化菌藻;降解中图分类号S182;X703.1文献标识码A文章编号0517—6611(2015)13—213—04StudyonOilWastewaterTreatmentbyImmobiiizedBacteria-AlgaeCHENQing-guo,WANGXing·di,LIUMei”etal(1.CollegeofMarineScience&Technology,ZhejiangOceanUniversity,Zhoush—an,Zhejiang316000;2.ZhejiangInternationalMaritimeCollege,Zhoushan,Zhejiang316000)Abstraet『Obiective]Thestudyaimedtooptimizetheconditionsforthedegradationofoilwastewaterbyimmobilizedbacteria.algae.IMeth。od]Firstly.theoilwastewatertreatmentbyimmobilizedbacteria—algaewasstudied,andtheinfraredspectrum.GC.FIDandGC.MSanalysisofcrudeoilbeforeandafterbiodegradationwereconducted.Afterwards,theefectsofvariousfactors(crudeoilcontent,mediapH,mediatemperature.andNaClcontentofmedia)oncrudeoilbiodegradationeficiencywereexplored.Finally,thereusablepropertyofimmobilizedbacteriaandalgaewasalsostudied.『Result1After15days’biodegradation,thedegradationrateof3g/Lcrudeoilbyimmobilizedbacteria—algaecouldreach91.8%.Bacteria—algaeperformedsynergisticeffect.whichenhancedtheremovalefficienciesofthemainn.alkanesandpo1.yaromatichydrocarbon.Theimmobilizedbacteria.algaegothighbiomassandcrudeoilremovalefficienciesundertheconditionsasfo1lows:thecrudeoilcontentwas1—7L:pHwas6—8;temperaturewas25—35cC;NaClcontentwasbelow1.5%.Within3times(5deverytime)。therewerenosignificantefectsontheperformanceofcrudeoilremovalbytheimmobilizedbacteriaandalgae.[Conclusion】111ere.searchcouldprovidetheoreticalrefereneesfortheoilwastewatertreatmentbyimmobilizedbacteria.algae.KeywordsOilw
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