改良型DE氧化沟工艺的除磷脱氮分析

DE唐敏康　许建红(,341000)　曾　严(,610500)　新都污水处理厂所采取的改良型DE氧化沟经工程实践证明效果较好,针对该处理工艺流程和DE氧化沟自身的改进进行了分析,总结了为强化脱氮除磷进行改良的经验。　DE氧化沟　脱氮除磷　工艺流程　污水处理0　,。,《》GB3838Ⅲ()GB3097,,:(P)0.5mgL,15mgL。,DE,。1　DE,DE,。DEDE,。,,,20%,80%,1。1　1.1　缺氧区,1,-,。DE1(DO0.2～0.5mgL),1,20%2,,,,,P。20%,80%,DO,,(DO0.2mgL)。,,,。,20%,,,,。1.2　厌氧区20%,(DO0.2mgL)。,,,,,。1.3　生物选择区DE1,80%,,,DO,。,,,9　　　20064242,。1.4　改良型DE氧化沟1.4.1　DE,4,4h。1　Ⅰ,Ⅰ,Ⅱ,Ⅰ,Ⅱ,Ⅰ,,Ⅱ,1.5h。2　Ⅰ,Ⅰ,Ⅱ,ⅠⅡ,,0.5h。3　Ⅱ,Ⅱ,Ⅰ,Ⅰ,Ⅱ,Ⅱ,Ⅰ,1.5h。4　Ⅱ,Ⅱ,Ⅰ,Ⅰ、Ⅱ,,0.5h。1.4.2　DEDE,,,,,。,,PHB,,,,,,(2～3mgL),,。,,。,,62.5%。2　GB3838Ⅲ,《》。20049,,、、、、。,,。,。1。1　(mg·L-1)(mg·L-1)%CODCrSSNH3-N　TPCODCr　SSNH3-N　TPCODCr　SSNH3-N　TP2004-0982.0　12913.80.7327.8　14.36.810.1766.1　88.950.776.72004-1070.1　12912.50.7327.8　14.36.810.1760.3　87.667.375.02004-1177.6　14314.80.6927.1　16.45.420.2965.1　87.768.862.32004-1288.5　13418.11.0327.1　16.45.420.2969.4　87.870.171.82005-0179.0　16314.11.1022.4　16.94.560.3271.6　89.667.770.92005-0281.7　15813.10.9425.4　15.64.660.3468.9　90.164.463.82005-0397.9　12617.21.1433.8　16.53.620.4265.5　86.979.063.22005-0497.7　14115.11.0326.8　14.42.020.3572.6　89.886.666.03　DE,DE,。:(1),1,。(2),DO。(3),,,。(4)DE,,。,,:BOD5　0.05～0.15kg(kg·d);　13～26h;　12～18d;　90%;　2000～4000mgL;　0.3～0.5ms;　2～3mgL(),0.2～0.5mgL(),0.2mgL()。DE,,,,。10　　　20064242[1]　.Carrousel.,2003,19:12.[2]　,.Carrousel.,2002,18:1.[3]　,.Carrousel.,2004,17:3.[4]　,..,2004,17:1.[5]　,..:,2004.　　341000　　2005-05-23UASB＊邓黛青1　夏凤毅2　李光明1　周仰原1　赵修华1(1.,200092;2.,325027)　垃圾焚烧场的渗滤液具有pH低、污染成分复杂、CODCr浓度高、可生化性好等特点。本研究探索了UASB法处理焚烧场渗滤液时的快速启动方法,考察了水力停留时间、容积负荷对CODCr去除率的影响及产气量与CODCr去除率的关系,结果表明,在水力停留时间6d、容积负荷5kg(m3·d)的情况下,CODCr去除率可达到93%,每升原水产气量可达22.5L,折合热值492.7kJ。　UASB　垃圾焚烧场　渗滤液0　。1,,CODCr,BOD5CODCr0.6～0.8,,[1-3]。UASB。1　,1。,MLSS64.68gL,VSSSS70.3%。1　mgL(pH)pHTSNH3-NBOD5BMPCODCrVFA3.92～5.81018500～26875380～65629635～3800035000～4500039400～591509230～11221HgZnCrCuCaFePbCl-0.013150.150.329771930.19890　　　　　　　　＊“863”(2003AA644030)　　UASB。150mm,1700mm,30L,150mm;230mm,150mm,6.23L。,(30±1)℃。,20～35℃。2　2.1　UASB的启动与运行,,[4];,、、。11　　　20064242BIO-TREATMENTOFAMMONIA-CONTAININGWASTEWATERFROMCHEMICALFERTILIZERINDUSTRYWITHAMULTIPLEAIRLIFTLOOPREACTORMaoGuozhu　WenJianping　JiaXiaoqiangetal(7)……………………………………………………………………………………………………………………………Abstract　A80m3gas-liquid-solidthree-phaseflowmultipleairliftloopbioreactor(ALR)withalowratioofheighttodiameter(s)hasbeenputintopracticeinnitrifyingtheeffluentinonechemicalfertilizerplantinChina.Theinfluencesoftheair-to-waterflowratioandhydraulicresidencetimeonammonianitrogenreductionareinvestigatedanddiscussed.Theoptimumoperatingconditionssuchasair-to-waterflowratioof50andHRTof5hoursarefound.Inaddition,theaverageremovalratesofCODCrandNH+4-Narerespectivelyhigherthan75%and98%.ThetreatmentresultsoftheeffluentCODCr50mgLandNH+4-N10mgL,whicharesatisfactory.Keywords　ammonianitrogen,bio-treatment,multipleairliftloopreactorandlowratioofheighttodiameterANALYSISOFPHOSPHOROUSANDNITROGENREMOVALBYIMPROVEDDEOXIDATIONDITCHPROCESSTangMinkang　XuJianhong　ZengYan(9)…………………………………………………………Abstract　BasedonthegoodeffectofXindouWastewaterTreatmentPlantforselectingimprovedDEoxidationditchprocess,itisanalysedtheimprovedprocessandtheimprovedDEoxidationditchitself.Finallytheimprovedexperimentsforstrengtheningphosphorousandnitrogenremovalaresummarized.Keywords　DEoxidationditch,phosphorousandnitrogenremoval,processflowandwastewatertreatmentTREATMENTOFLEACHATEFROMMUNICIPALSOLIDWASTEININCINERATORWITHUASBDengDaiqing　XiaFengyi　LiGuangmingetal(11)……………………………………………………………………………Abstract　Leachatefromsolidwastestore-tankinmunicipalsolidwasteincineratorsfactoryhasthecharacterofhighorganiccontaminationandlowpH.Thestart-upperformanceofcommercial-scaleUASBreactorstotreatleachateatambienttemperaturewasinvestigated.TheexperimentwasalsodesignedtoinvestigatetheeffectsofCODCrdegradingefficientonHRTandVLD.TheresultsindicatethatataHRTof6dandtheVLDof5kg(m3·d),theCODCrdegradingefficiencyisabove85%,andthegasproducedfromtheorganiccontaminationofeachrawleachateis22.5L.Keywords　UASB,municipalsolidwaste,incineratorandleachateEXPERIMENTALSTUDYONRESIDENTIALSEWAGETREATMENTBYMEMBRANE-SEQUENCINGBIOREACTORGaoYulan　FengXudong　WangPing(14)…………………………………………Abstract　Membrane-sequencingbioreactorwasusedtotreatresidentialsewage.Thestabilityofsystemwasinvestigatedwithoutsludgedischarge.TheresultshowsthattheaverageremovalefficiencyofCODCr,ammonianitrogenandturbidityhasreached89.8%,99.3%and99.6%respectivelyundertheconditionsofair-waterratio35∶1,operationperiod5.75h.ThemembranehasacontributiontotheremovalefficiencyofCODCr,ammonianitrogenandturbidityrespectivelywith10.2%,0.1%and9.5%.Themembraneseparationprocesscanenhancethewastewatertreatmenteffectandtrans-membranepressure(TMP)risesslowly.Theeffluentqualitywassuperiortothestandardsforwaterreuse.Keywords　membrane-sequencingbioreactor,residentialsewageandammonianitrogenTREATMENTOFLEACHATEFROMMUNICIPALSOLIDWASTELANDFILLSBYEVAPORATIONINVACUUMYangQi　HePinjing　ShaoLiming(17)………………………………………………Abstract　Evaporationhasbeenusedfortreatmentoflandfillleachateatacertainextent.Afterabriefsummaryofdevelopmentofevaporationtechnology