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):/,。3,(SBR)、//。,/,、,,。:(SBR);;;:X799　:A　: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　:2003-03-16　:(50138010)(E0230)　:(1967-),,;(1949-),,,,,,,0451-2291734。　　“”,、。,,,。,。。[1],。·28·　Jun.2003现代化工236ModernChemicalIndustry20036DOI:10.16606/j.cnki.issn0253-4320.2003.06.008[2-7],,,。。1　,。,,。COD350～400mg/L55～57mg/L,90mg/L,2mg/L,pH7.5,(MLSS)3.5g/L。(SBR),,,700mm,300mm,38L,1。0.6m3/h,(28±1)℃。pH(pH211)Ag/AgCl(ORP)pHORP,pHORPCOD、NH3-N、NO2-N、NO3-N、MLSS。,[8]。1—;2—;3—pH;4—pH;5—ORP;6—ORP;7—;8—;9—;10—;11—;12—图1　SBR试验系统与控制示意图2　,3,SBR;/;ORPpH/。3,1。1　3　SBR　※11h※1h※0.5h※0.5h/　　※4h※0.5h※3.5h※1h※0.5h※0.5h/　　※ORPpH/2.1　SBRSBR,COD、NH3-N、NO2-NNO3-N2。1h,;,,50%,,,。,COD。60min,720min。,550min,,NH3-N,NO2-NNO3-N。110min。,,,。1—NH3-N;2—COD;3—NO2-N;4—NO3-N图2　传统SBR法运行方式下的脱氮过程·29·20036:2.2　/,1/,3。2,SBR。1—NH3-N;2—COD;3—NO2-N;4—NO3-N图3　固定时间控制交替好氧/缺氧运行方式下的脱氮过程,NH3-NCOD,,,,,,。,,,,。2.3　/,,ORPpH,[9-10]。ORPpH,,,,4。/,ORP,。ORP,ORP;pH,,ORP,/。,pH,。,ORPpH,。ORPpH,/,,460min。1—pH;2—NH3-N;3—ORP;4—NO2-N;5—NO3-N图4　适时过程控制交替好氧/缺氧运行方式下的脱氮过程2.4　33,3,2。,/。SBR1.29,/1.23,,。,,SBR/190min60min。,ORPpH/。,,。2　3　/mg·g-1·min-1/min/mg·g-1·min-1/minSBR0.02685600.245760　0.02824350.243250　　0.03463700.141990　　　:NOx-N。·30·　现代化工236,。。[11],,,。1—SBR;2—/;3—/图5　不同运行模式对污泥沉降性能的影响,3。,ORPpH/,(SVI)70g/mL,,SVI;SBR,SVI110g/mL,,SVI(5)。SVI,,。/。3　3,,/。ORPpH/,。/,。[1],,.[J].,2000,16(2):29-31.[2]Surmacz-GorskaJ,CichonA,MikschK.[J].WatSciTech,1997,36(10):73-78.[3]HellingaC,SchellenAAJC,MulderJW,etal.[J].WatSciTech,1998,37(9):135-142.[4]MulderJW,vanLoosdrechtMCM,HellingaC,etal.[J].WatSciTech,2001,43(11):127-134.[5]vanKempenR,MulderJW,UijterlindeCA,etal.[J].WatSciTech,2001,44(1):145-152.[6]vanDongenU,JettenMSM,vanLoosdrechtMCM.[J].WatSciTech,2001,44(1):153-160.[7],.[J].,2001,21(1):79-83.[8].[M].:,1989.[9],,.[J].,2002,18(11):13-18.[10],,,.[J].,2003,24(1):63-69.[11],,,.[J].,2000,20(2):129-133.□　　,、、———()。、。“”“”“XJF”,60～200;、、、、。(吴宏富)·31·20036: