畜禽养殖废水的混合处理工艺邓仕槐

邓仕槐　李远伟　郑仁宏　周　鹏　张小平(,625014)　针对畜禽养殖场废水的“三高”特点,即CODCr高、氨氮高、SS高,应用气浮-ABR-CASS-湿地及生态塘为主体的废水处理工艺。结果证明,该工艺处理后的废水CODCr、氨氮、SS等指标都能达到(GB8978-1996)一级排放标准。　畜禽养殖场　废水　工艺　排放标准0　、[1]。、,、、、。××,,,ABR-CASS,,CODCr、、SS。1　1.1　废水水质,1。1　mgL(pH)CODCrBOD5SSNH3-NpH4500～70003000～45001500～2000300～4007～8.51003070156～9　　:(GB8978-1996)1.2　工艺流程1。1　,、,,。,,,。,,CODCrBOD5。ABR[2](,AnaerobicBaffledReactor,ABR)。ABR2,,,UASB,UASB,ABR[3]。2　ABRABR5,,,,。CODCr,。,,。。ABRCODCr0.7kg(m3·d),HRT=3.5d。ABR,,CASS。ABRCASS[4]。CASS--,3。CASS2。3,31,29　　　20068244DOI:10.13205/j.hjgc.2006.04.0103　CASS,。CASS:,25%,;,,;,,;,,,。CASS,12,,,,。[5,6]。()———()———()。CASS300m3,HRT=8h。12h,2h,6h,2h,1h,1h。。BOD50.15kg(m3·d),BOD50.15kg(kg·d),MLSS1000mgL。CASS[7]。300m2,,、,、。、,、[8]。。,,,,。、,。2　,,,CODCr、、SS,。2。pH7～8.5,。98%,。2　CODCrBOD5SS　(mg·L-1)4000～70003000～45001500～2000300～400(mg·L-1)3000～40002000～30001000～1500250～300%2323254　(mg·L-1)3000～40002000～30001000～1500250～300(mg·L-1)680～700350～370120～140120～140%81859160ABR(mg·L-1)680～700350～370120～140120～140(mg·L-1)240～250120～12560～7040～45%65665061CASS(mg·L-1)240～250120～12560～7040～45(mg·L-1)150～16070～8045～559.5～10%35372877(mg·L-1)150～16070～8045～559.5～10(mg·L-1)45～5520～2525～304～5%69684253%999999983　(1)-ABR-CASS-:,,,。(2),,。1.17m3。(3)。(4),。,;ABR,。(5),;,。[1]　,..,2003(5):67-72.[2]　..:,2003:183.[3]　,.ABR.,2003.19(11):1-3.[4]　M.C.Goronszy.Cyclic.TechnologyReachesNewHeights.WQIMarchApril.1996:18-20.(33)30　　　2006824457.9mgL,DATCODCr75.39%,IATCODCr31.3～77.3mgL,47mgL,DAT-IATCODCr80.01%。BOD5,DAT-IATBOD596.85%,DATBOD596.41%。DATDAT-IAT。DAT,IAT。DAT-IAT,DAT,,。IAT,、、,CODCr、BOD5、SS,,IAT。DAT,,[6],,DAT-IAT,DATIATBOD5,、[7],。2　(1),BOD5,96%;CODCr,75%,。DAT-IAT。(2)BOD5CODCr,0.3,,,。(3)SS,,。,SS,,,IAT,,SS。(4)DAT-IATBOD5,DATBOD5,DAT,DAT,,,。[1]　IrvineR.L.,BuschA.W..SequencingBatchBiologicalReactors-AnOverview.JWPCF,1979,51:235.[2]　,,.SBRDAT-IAT..,2001.[3]　,.SBRDAT-IAT.:,1996.[4]　..:,2002.[5]　,.DAT-IAT.:,2003.[6]　.SBR.,1996,18(5):39-41.[7]　ArdernE.,LockettW.T..ExperimentsontheOxidatioonofSweageWithouttheAidofFilter.Soc.Chem.Ind.,1914,33:523.　　212013　　775#2005-09-27(30)[5]　SlaterNJ,GoronskyMC.TheCyclicActivatedSludgeSystem:AWaytoAchieveDischargeStandards.NewWordWater,1994:81-83.[6]　TranscenviroInc.WastewaterTreatmentSpecialists,CASSTM(CyclicActivatedSludgeSystem).GeneralProcessDescription(TechnicalReport),1996.[7]　,.———、、.:,2004:200-206.[8]　..,2002,11(3):279-283.　　625014　　　[phone]E-mail　[e-mail]2005-09-1933　　　20068244standards,theditchcannotoperateregularly.Accordingtothecondition,theworkingparametersoftheditchareadjustedtothepatternundertheloworganicloadingandtheoperationalpatternunderthissituationisalsofoundout.Keywords　wastewatertreatment,organicloading,three-tankoxidationditch,aeration,sludgeloadingandsludgeresidencetimeTREATMENTOFLEACHATEBYIMMOBILIZEDMICROORGANISMSTECHNOLOGYXiaoMeilan　YeZhengfang　NiJinrenetal(25)…………………………………………………………………………………………Abstract　Afull-scaleplantofleachatetreatmentbyimmobilizedmicroorganismstechnologywasbuiltwithacapacityof60m3d.TherunningresultsshowedthatwhenCODCrandammonia-nitrogenoftheinfluentwereabout1980mgLand820mgLrespectively,theeffluentCODCrandammonia-nitrogenwere130mgLand0.80mgL.Theresultsalsoindicatedthatthistechnologyhadanablitytoresistloadsfluctuating.Microorgannismespeciallythenitrobacteriawasneverrestrainedbythevariationoftheinfluentquality.Keywords　immobilizedmicroorganisms,biologicalaerobicfilterbed(BAFsystem),leachateandhighammonia-nitrogenAPPLICATIONOFPROCESSOFUSR&IODINTREATMENTOFPIGFARMWASTEWATERZhengYuyi(27)………………………………………………………………………………………………………………………Abstract　TheprocessofUSRandIODwasusedtotreatthepigfarmwastewaterinanengineeringexample.Itsdesignparametersandoperationwereintroduced.ThemonitoringresultsofcompletedengineeringapprovalshowthatalleffluentpollutantindicescanmeettherequirementsoftheProfessionalDischargeStandard.Keywords　USR,IODandlivestockwastewaterMIXINGTREATMENTTECHNOLOGYFORLIVESTOCKANDPOULTRYCULTIVATIONWASTEWATERDengShihuai　LiYuanwei　ZhengRenhongetal(29)…………………………………………………Abstract　AimingattheproblemofhighcontentsofCODCr,NH3-NandSSinwastewater,acombinedprocessofairfloat-ABR-CASS-constructedwetlandandecologicalpondwasused.ResultshowedthatthecontentsofCODCr,NH3-N,SSoftreatedwastewatercouldmeetthefirst-leveldischargecriteriainGB8978-1996.Keywords　livestockandpoultrycultivationwastewater,techniqueanddischargestandardEFFECTANALYSISOFOPERATIONPRACTICEINTHESEWAGETREATMENTPLANTUSINGDAT-IATPROCESSSuQingyong　ChuJinyu(31)…………………………………………………………………………Abstract　DAT-IATprocessisusedinasewagetreatmentplantofTianjinEconomicandTechnicalDevelopmentZone.TheoperatingeffectinbothsummerandwinterwascomparedandtheremovaleffectoforganicmatterinbothDATtankandIATtankwasanalysed.ThediscoveryshowsthattheremovaleffectofCODCrandBOD5wasalmostthesameinsummerandwinter.TheremovaleffectofBOD5wasmuchmorecomplete.TheremovalrateofBOD5inDATtankwouldmakeanunfavorableinfluencetowardsremovingphosphorusandnitrogen.Keywords　DAT-IAT,sewagetreatmentplantandremovaleffectINVESTIGATIONONPURIFYINGTOLUENEWASTEGASINBIOTRICKLINGFILTERSUNDERTHERMOPHILICCON