改良型A2O工艺处理城市污水的中试研究任洁

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A2/O任 洁 顾国维 杨海真   介绍了A2/O脱氮除磷工艺的机理、特点及存在的问题,对A2/O工艺进行了取消混合液回流的改良型试验研究。试验结果表明,取消混合液回流后,有机物和氮的去除效果同传统型的相当,而在同样条件下除磷效果较优。这表明将A2/O工艺污泥回流系统和内循环系统合并为一个回流系统是可行的。 改良型A2/O工艺 脱氮除磷 混合液回流  A2/OBardenpho,,。A2/O,,(VFA),PHB,,,;,,;,,PHB,,,,。,。,,,(3~4),:,,,。:η=R/(1+R),η,R。:η=0.2+0.8R/(1+R)。,,,。COD/TKN,NO-3-N。,,,。,:,,。,,,,,。。1 1 1。。A/A4.00m×2.70m×3.00m=32.40m3,6,1.35m×1.33m×3.00m=5.39m3,1.35m×1.33m×2.70m=4.85m3。A2/O,,,。,。 Vol.26 No.6 20007    DOI:10.13789/j.cnki.wwe1964.2000.06.0038.60m×2.70m×3.00m=69.66m3,8.60m×2.70m×2.60m=60.37m3。,。,,2.70m×2.70m×1.70m=12.39m3,9m3,,,。MSBR,,,20d,MLSS3000mg/L,19988。2 、,1。A2/O,,A2/O(19988~9)。A2/O。A2/O,。,,,,A/A,,--。,8。(1)19989151999113,A2/O,,,。(2)11336,6/3,。3761,(3),(1),CODTP,100mgCOD/L1mgPO3-4/L。23。3 3.1 ()2。2,,COD、BODSS,、。,,,。,。2 3.2 ,A2/O、,。1,、34。3 NH3-N4 PO3-420℃,,20℃,NH3-N8     Vol.26 No.6 20001 COD/mg/LBOD5/mg/LTP/mg/LPO3-4/mg/LNH3-N/mg/LTKN/mg/LSS/mg/LpH130~27242~1141.0~6.80.6~2.413~2418~6552~3206.8~7.818070.42.41.217.728.61127.32    123/m3/d1502502502502.0+3.01.51.51.5/h/4.82.831.422.839.75.805.805.8014.58.637.228.63/mg/L/2000~37602010~30202170~43062000~40601990~37301600~4090V/∶V1∶2.11∶2.11∶4.11∶4.1COD/TKN4.7~9.02.8~6.96.2~7.15.2~19.5COD/TP41~5230~11790~10829~113/d25~3025~3025~3025~30/℃27~2911~2811~1311~253  CODCrBOD5SSTKNNH3-NTPPO3-4/mg/L90~169(130)50~78(60)68~112(98)15~28(22)11~18(15)1.4~3.4(2.7)1.0~2.2(1.3)/mg/L32~51(46)9~17(11)10~50(18)2.5~12(6.5)0.4~3.2(2.6)0.4~1.8(0.9)0.1~0.8(0.4)/%52~78(64)74~85(81)40~90(82)48~86(70)70~98(82)46~74(63)44~88(69)1/mg/L98~245(142)40~112(58)50~182(90)15~48(29)11~26(20)1.9~6.6(2.7)0.8~3.2(1.4)/mg/L31~68(47)7~17(12)14~38(20)4~38(13)0.2~21(7.4)0.2~2.7(1.2)0.1~1.4(0.66)/%53~83(65)74~85(82)46~96(77)18~86(55)11~99(63)32~90(58)29~98(59)2/mg/L98~210(178)53~82(68)86~154(113)16~53(30)15~34(22)1.8~2.6(2.1)0.8~1.4(1.1)/mg/L32~66(46)8~25(15)11~27(20)13~35(23)12~26(18)0.3~1.0(0.5)0.1~0.7(0.3)/%71~76(74)73~77(76)76~92(83)14~29(24)12~29(19)71~88(77)67~85(74)3/mg/L127~481(233)58~150(98)74~442(161)14~53(26)12~25(18)2~7.6(4.2)1.0~4.9(2.4)/mg/L29~103(67)7~44(25)10~66(36)3~32(10)0~19(3)0.4~2.6(1.9)0.2~2.1(1.1)/%44~86(71)54~95(78)56~96(77)14~87(62)16~99(73)28~94(62)31~96(59) :。,13℃,NH3-N18%,,,NH3-N。,,。3.3 A2/O,、,,。,,。,、,,。NO-x-N,1mg/L, Vol.26 No.6 20009    。,,。,,,。4 (1),,。。(2)A2/O,,,,,。,13℃,。(3),NO-x-N,,,。(4),。参考文献1 ..:,19892 ..,19953 NazihKHShamas.InteractionofTemperature,pHandBiomassontheNitrificationProcess.JWPCF,1989,58(1):52~594 RSorm,GBortone,JWannerandATilche.BehaviorofActivatedSludgefromASystemwithAnoxicPhosphateUptake.WatSciTech,1998,37(4~5):563~5665 ..:,19926 MHenze.CapabilitiesofBiologicalandNitrogenRemovalProcessesfromWastewater.WatSciTech,1991,23,669~6797 ..:,1996⊙:200092 :(021)65984829 :2000-3-10     SHANXINEWFRIENDSUNIONCO.,LTD.———,。400,12000m2,,,199510。:、、、、、、,200t。20000t,50%,。,,,。,CJ24·2,,JWWA-A-103,。:      :(0356)2059739      ::(0356)4851019:(0356)2055722ADD::(0356)4851090E-mail:nfu@public.jc.sx.cn  5-23-10BLDG: (): ::048102 :0645FAX:81-3-3433-673510    Vol.26 No.6 2000WATER&WASTEWATERENGINEERINGVol.26No.6June2000CONTENTSSludgeDischargeinBiologicalTreatmentofSlightlyPollutedRawWaterMeiXiangetal(1…………………………………)Abstract:Byapilotplantresearchonthesludgedischargepatternofbiologicalcontactoxidationprocesstreatinghighca-pacityofslightlypollutedrawwaterincanal,ithasbeenconfirmedthatunderwherethevelocitynearthebottomofthebiologi-caltankisover0.2m/s,nosedimentwillbeaccumulatedatthebottomandthesludgedischargedevicesarenotnecessary.En-gineeringpracticealsoshowsthatwhenthetankwithoutsludgefunnelisoperatinginhighaveragesectionalvelocity,nosedimentaccumulationatthebottomandundernormalaerationcondition,noevidenteffectsonN-removalcausedbytheun-uniformdistri-butionofvelocitythroughthesectionofthetankhavebeenobserved.KineticMechanismandDesignonPipelineCoagulationofHighTurbidityWaterWuDaojietal(4…………………………)Abstract:Thepipelinecoagulationprocess(PCP)issuitabletothehighturbiditywaterpurification.Thekineticmecha-nismofPCPwasresearchedexperimentallyanddiscusseddeeply,finallytheoptimalindicatorsoncomprehensivecontrolofPCParerecommended.PilotPlantResearchonImprovedA2/OProcessTreatingUrbanWastewaterRenJieetal(7………………………………)Abstract:Themechanism,featureandexistingproblemsofA2/OprocessforPandNremovalarepresentedandanim-provedprocessforwhichtherecyclingofmixedliquidwasleftoutwasresearchedexperimentally.Theresultsshowthatthere-movalofNandorganicsubstancesoftheimprovedprocessaresameastheformerandtheP-removalofthenewprocessisbetterundersameoperatingcircumstance.ThesemeanthatincorporationofthesludgecirculationandtheinnerrecyclingoftheA2/Oprocessintooneexclusiverecyclingsystemwillbefeasible.ResearchonBiologicalCHCProcessforPRemovalFengShenghuaetal(11…………………………………………………)Abstract:Itwasconfirmedexperimentallythatunderanaerobicconditionthemicroorganismstrendtosurviveontheenergysustainedbyendotrophicdegradationofthecarbon-hydrates(CH).AlsotheinfluenceoftheCHcontentonthebiologicalPre-movalwasdiscussedandsoabiologicalPremovaltechnologycalledCHcontro

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