含盐生活污水处理中的硝化菌种群优化_英文_叶柳

北京大学学报(自然科学版)，第46卷，第3期，2010年5月ActaScientiarumNaturaliumUniversitatisPekinensis，Vol.46，No.3(May2010)“十一五”国家科技支撑计划重点项目(2006BAC19B03)和北京市高校人才强教深化计划高层次人才资助项目(PHR20090502)资助收稿日期:2009-10-20;修回日期:2009-12-14NitrifyingPopulationOptimizationinMunicipalSalineWastewaterTreatmentYELiu，WANGShuying，ZHAOKaifeng，PENGYongzhenCollegeofEnvironmentalandEnergyEngineering，BeijingUniversityofTechnology，Beijing100124;CorrespondingAuthor，E-mail:louisaye2004@yahoo.com.cn，wsy@bjut.edu.cnAbstractAsludgepopulationoptimizationstrategyaimstoselecttheammoniaoxidationbacteria(AOB)byusingsodiumchloride(NaCl)asaselectiveinhibitortonitriteoxidationbacteria(NOB)isappliedinbiologicalnitrogenremovalprocessduringmunicipalwastewatertreatmentusingasequencingbatchreactor(SBR).Differentsalinitytestscontributedtothebestinhibitionsalinitychosenwereapplied.Inordertooptimizenitrifyingmicrobialcommunitiestogetsteadynitritepathway，7.6g/Lsalinityand4monthsaltinhibitionperiodwereapplied.FISHanalysisindicatedthatAOB(Nitrosospira)became