UASB预处理稀土废水高玲琴

20103291JournalofInnerMongoliaUniversityofScienceandTechnologyMarch,2010Vol.29,No.1　　:1004-9762(2010)01-0069-04UASB＊高玲琴1,韩剑宏1,樊布和2(1.,　014010;2.,　014030):UASB;NH+4-N;COD;:X703　　　:A　:UASBNH+4-N,C/N,NH+4-N.,75d,:20～30℃,pH7.0～8.0,C/N3.5～4.5.NH+4-N500mg/L,40%,,NH+4-N.ThepretreatmentofrareearthwastewaterbyUASBreactorGAOLing-qin,HANJian-hong,FANBu-he(1.EnergySorucesandEnvironmentSchool,InnerMongoliaUniversityofScienceandTechnology,Baotou014010,China;2.InnerMongoliaFirstMachineryEngineeringCo.,Ltd,Baotou014010,China)Keywords:UASBreactor;NH+4-N;COD;rearearthwastewaterAbstract:ThepretreatmentofhighconcentrationNH+4-NwastewaterwascarriedoutbyUASBreactorandalowerC/Nwasusedtore-ducetheNH+4-Nloadofthefollow-uptreatment.Byusingshortcutnitrification-denitrificationinthereactorfor75dexperimentalcy-cles,thebestcontrolconditionofreactorwereobtainedasfollows:temperaturewas20-30℃;pHwas7.0-8.0;C/Nwas3.5-4.5;theconcentrationofNH+4-Nwasabout500mg/L.Theremovalrateattained40%.Runningsteadily,thereactorcouldbeusedasthepre-treatmentofhighconcentrationNH+4-Nwastewater.　　NH+4-N,NH+4-N20000mg/L,,,.,,,,[1].UASB[2],COD/NH+4-N,,NH+4-N,,.,(),.1　1.1　1.1　Fig.1　Experimentalequipment1.;2.;3.UASB;4.;5.;6.;7.＊:2009-11-27:(1984-),,,.DOI:10.16559/j.cnki.2095-2295.2010.01.01720103　291　　UASB,45L,32L,13L,.1.2　.,:,,,MLSS4.603g/L.22L,50%.,15000～20000mg/L,COD,,NH+4-N300～500mg/L,,、、.1.3　(COD):();(NH+4-N):;pH::(T):;MLSS:.2　(,,,,,,NO2,N2),,,:,pH,C/N.2.1　[3],2,20～30℃NH+4-N30%～40%.UASB,,,,;,[4];50℃,NH+4-N,.3,COD20～30℃40%～80%,10℃40℃,,.,[5].10℃,,;,,,Svensson[6]20℃,H228℃.2　NH+4-NFig.2　TheinfluencesofdifferenttemperatureontheremovalrateofNH+4-N3　CODFig.3　TheinfluencesofdifferenttemperatureontheremovalrateofCOD,,20～30℃.2.2　pH4,pH7.0～8.0,NH+4-N19.8%～32.66%,pH7.0(8.5),pH7～8.5,7.0,,,NH+4-N,pH8.5,70:UASB,NO-2[3～7].4　pHNH+4-NFig.4　TheinfluencesofdifferentpHontheremovalrateofNH+4-N5,pH6.6～7.5,pH,,pH6.6～7.8,90%～96%;pH6.18.3,[8].,pH7.0～8.0.5　pHCODFig.5　TheinfluencesofdifferentpHontheremovalrateofCOD2.3　C/NC/N(COD/NH+4-N)[9],6,C/N2～5,NH+4-N26.4%～39.2%,C/N4,39.2%.1.5,,,NH+4-N;C/N6.5,,,,,UASB,NH+4-N.C/N[8],C/N4NH+4-N,C/N3.5～4.5.6　C/NNH+4-NFig.6　TheinfluencesofdifferentC/NontheremovalrateofNH+4-N3　,UASB,,(20～30℃,pH7.0～8.0,C/N3.5～4.5),7.7　NH+4-NFig.7　TheremovaleffectofNH+4-Ninthemoving7,1～15d,NH+4-N,;15d,15～7120103　29125d,NH+4-NNH+4-N,NH+4-N,.25～40d,NH+4-N,,,NH+4-N,,,,UASB.,NH+4-NNH+4-N,:(1),,,,UASB,,[10].(2),,.(3),.4　NH+4-N,COD,,,(、、、、、),,,NH+4-N,.5　(1),20～30℃,pH7.0～8.0,C/N3.5～4.5,,C/NNH+4-N.(2)UASB,,、.:[1]　　,.-[D].:,2004.[2]　,,.[J].,2000,26(1):33-38.[3]　,,.UASB()[J].,2008,30(4):15-18.[4]　,,.[J].,2006,27(2):68-71.[5]　YeeCJ,HsuY,ShiehWK.Effectsmicrocarrierporecharacteristicsonmethanogenicfluidizedbedperform-ance[J].WaterRes,1992,26(8):1119-1125.[6]　SvenssonBoH.Differenttemperatureoptimaformationwhenenrichmentsfromacidpeataresupplementedwithacetateofpydrogen[J].AEnvironMicrobiol,1984,48(2):389-394.[7]　　,,.UASB[J].,2002,18(8):13-15.[8]　　,,　.UASB[J].,2007,33(33):346-347.[9]　,,,.[J].,2008,30(1):44-47.[10]　.[M].:,2000.89-91.72