高氮豆制品废水的短程硝化反硝化脱氮技术及其过程控制_高大文

高氮豆制品废水的短程硝化反硝化脱氮技术及其过程控制高大文1,2彭永臻1,3王庆1王淑莹3王鹏1(1.哈尔滨工业大学市政环境工程学院,黑龙江哈尔滨150090;2.东北林业大学森林资源与环境学院,黑龙江哈尔滨150040;3.北京工业大学环境与能源工程学院,北京100022)摘要:采用交替好氧/缺氧运行方式和适时过程控制策略开发了一种生物脱氮新工艺,该工艺结合了短程硝化反硝化脱氮技术。试验过程中选择了3种不同运行模式去实现短程硝化反硝化脱氮技术,即传统的序批式活性污泥法(SBR)运行模式、固定时间控制交替好氧/缺氧运行模式和适时过程控制交替好氧/缺氧运行模式。结果显示,适时过程控制交替好氧/缺氧运行模式效果最佳,它不但能提高硝化、反硝化速率和减少总反应时间,而且可以节省硝化过程中碱度的投加和反硝化过程碳源的投加量,降低了运行成本。关键词:序批式活性污泥法(SBR);过程控制;短程硝化与反硝化;豆制品废水中图分类号:X799文献标识码:A文章编号:0253-4320(2003)06-0028-04Nitrogenremovalfromsoybeanwastewaterbyshortcutnitrification-denitrificationanditsprocesscontrolGAODa-wen1,2,PENGYong-zhen1,3,WANGQing1,WANGShu-ying3,WANGPeng1(1.SchoolofMunicipal&EnvironmentalEngineering,HarbinInstituteofTechnology,Harbin150090,China;2.CollegeofForestResourcesandEnvironment,NortheastForestryUniversity,Harbin150040,China;3.SchoolofEnvironmentalandEnergyEngineering,BeijingPolytechnicUniversity,Beijing100022,China)Abstract:Aninnovativetechnologyfornutrientremovalfromsoybeanwastewaterwasdevelopedbyusingalternatingoxic/anoxicoperationandthereal-timeprocesscontrol,anditwascombinedwithshortcutnitrification-denitrification.Theshortcutni-trification-denitrificationwasperformedinthreekindsofoperationmodes:shortcutnitrification-denitrificationbytraditionalse-quencingbatchreactor(SBR)operation,shortcutnitrification-denitrificationbyalternatingoxic/anoxicoperationunderthefixed-timecontrolandshortcutnitrification-denitrificationbyalternatingoxic/anoxicoperationundertheon-linefuzzycontrol.Resultsshowthattheshortcutnitrification-denitrificationbyalternatingoxic/anoxicoperationundertheon-lineprocesscontrolisthebest.Itnotonlycanimprovebothnitrificationanddenitrificationratesanddecreasethetotalreactiontime,savethecar-bonsourceandalkalinity,butalsocanshortenthereactiontimeandsavetheoperationcost.Keywords:sequencingbatchreactor(SBR);processcontrol;shortcutnitrification-denitrification;soybeanwastewater收稿日期:2003-03-16基金项目:国家自然科学基金资助项目(50138010)和黑龙江省自然科学基金资助项目(E0230)作者简介:高大文(1967-),男,博士生;彭永臻(1949-),男,博士,教授,博导,主要从事污水生物处理及其智能控制的研