多孔颗粒载体_膜生物反应器脱氮效果研究_周利

多孔颗粒载体—膜生物反应器脱氮效果研究周　利,刘　凯,兰　星,董　洋(四川大学建筑与环境学院,四川成都610207)　　摘要:实验探索了高MLSS(溶液悬浮固体浓度)下多孔颗粒载体—膜生物反应器发生短程硝化、反硝化的可能性。研究了溶解氧(DO)、C/N、氨浓度及氨负荷、pH等因素对短程硝化、反硝化和TN去除的影响。实验发现,当控制pH=7.5、DO=1.0mg/L、C/N为6时,该反应器能同时达到较高的NH4+—N和TN出除率。关键词:多孔颗粒载体;MBR;短程硝化、反硝化中图分类号:X703.1　　文献标志码:A　　文章编号:1005-8141(2007)12-1061-03StudyonNitrogenRemovalofPorousGranulatedCarrier-membraneBioreactorZHOULi,LIUKai,LANXing,DONGYang(CollegeofArchitectureandEnvironment,SichuanUniversity,Chengdu610207,China)Abstract:Thepossibilityofshortcutnitrification-denitrificationinporousgranulatedcarrier-membranebioreactorunderhighMLSSwasex-plored.Thispaperstudiedontheinfluenceofdissolvedoxygen(DO),C/N,ammoniadensity,ammonialoadandpHonshortcutnitrification-denitri-ficationandtheremovalofnitrogen.TheexperimentalresultsshowedthattheNH4+—NandTNcouldberemovedeffectuallyatthesametimeiftheconditionswerecontrolledunderC/Nratioof6,DOof1.0mg/LandpHof7.5.Keywords:porousgranulatedcarrier;MBR;shortcutnitrification-denitrification　　收稿日期:2007-10-29;修订日期:2007