BOD5污泥负荷对多段多级AO工艺处理效果的影响邹仲勋

星辰幻龙
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2020-07-16

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AOAAO、++/AOAO、。1。AO、/、、、。AO。11.11131.3m3、12.2m、、、、。AO4、4AO++/。。1.2COD200～400mg/LBOD590～200mg/LSS、NH4+-N、TN、TP70～150、30～50、40～60、4～6mg/L。3.0m3/h10.43h1.03h11.70h10.87h21.70h20.87h31.70h30.87h41.70h30%、30%、30%、10%80%300381BOD5AO。BOD5AOCODBOD50.02～0.15d-1CODBOD50.02～0.15d-1BOD5AOBOD50.05～0.10d-1TN。BOD50.1d-1。AOX703.1A1000-3770(2016)10-0089-0032015-12-21CSCEC-2015-Z-251985－022-88239188xbyzzxx@163.com1AOFig.1Theflowdiagramformulti-segmentmulti-stepAOappliance4210201610Vol.42No.10Oct.,2016DOI:10.16796/j.cnki.1000-3770.2016.10.02089DO2.0～3.0mg/L。BOD5COD、TN、TP。1.3COD、BOD5SS、NH4+-N、TN、TP、[1]。DO、、、DO、。22.1CODAOBOD5LsCOD2。2AOBOD5COD90%CODGB18918－2002ACOD≤50mg/L[2]。AO、BOD5。2.2TNAOBOD5TN3。3BOD5Ls=0.02、0.05、0.10、0.15d-1TN14、7、8.6、14.7mg/LBOD50.05～0.10d-1TNGB18918－2002ATN≤15mg/L。BOD5。BOD5。。BOD5DO。2.3TPAOBOD5TP4。4BOD5Ls=0.02、0.05、0.10、0.15d-1TP0.96、0.71、0.52、0.32mg/LBOD5。TP。TP70%TPGB18918－2002ATP≤0.5mg/L。3、、、4AO1。3.140×103m3/d2BOD5CODFig.2CODremovaleficiencyunderdifferentsludgeload010203040506070800100200300400500600700020406080100/%t/dCOD/mgL3BOD5TNFig.3TNremovaleficiencyunderdifferentsludgeloadρ(TN)ρ(TN)ρ(TN)/(mg·L-1)01020304050607080010203040506070020406080100/%t/d4BOD5TPFig.4TPremovaleficiencyunderdifferentsludgeloadρ(TP)/(mg·L-1)ρ(TP)ρ(TP)0102030405060708001234567020406080100/%t/d4210904AOAO13.16h5.2g/LBOD50.083d-1。COD、BOD5NH4+-N、TNGB18918－2002ATPTP1.0mg/L。3.230×103m3/d4AOAO15.97h6.1g/LBOD50.014d-1。COD、BOD5、NH4+-NGB18918－2002ATN10～20mg/LC/NTNTP1.2～2.0mg/L。3.380×103m3/d4AOAO11.97h6g/LBOD50.029d-1。COD、BOD5NH4+-N、TNGB18918－2002ATPTP1.0mg/L。3.450×103m3/d4AOAO10.92h5g/LBOD50.057d-1。COD、BOD5、NH4+-NGB18918－2002ATN18～20mg/LDOTP1.0mg/L。4BOD5AOCODBOD50.02～0.15d-1CODBOD50.02～0.15d-1BOD5AOBOD50.05～0.10d-1TN。AOBOD50.1d-1。BOD5。TNTN。[1]《》.[M].4.:,2002.[2]GB18918－2002[S].TheInfluenceofBOD5SludgeLoadingsforAMAOProcessZouZhongxun,LiZupeng,LiuShengjun,ShiFeng,ChenYang,HuangYu(CSCECAecomConsultantsCo.,Ltd,Tianjin300381,China)Abstract:Thisworkhadinvestigatedthetreatmentefficiencyofthemulti-segment/multi-stepAOprocesstopollutantsunderdifferentBOD5loadings.Theresultsindicatedthat,theCODachievedgoodtreatmentefficiencywhenBOD5sludgeloadingwasinrangefrom0.02~0.15d-1,andBOD5loadingsinthisrangeshowedlittleinfluenceonremovalrateofmulti-segment/multi-stepAOprocesstoCOD.BetterdephosphorizationefficiencyhadbeenachievedathigherBOD5sludgeloadingswhenBOD5rangedfrom0.02~0.15d-1.Atmeanwhile,betterTNtreatmentefficiencyhadbeenobtainedataBOD5sludgeloadingsof0.05~0.1d-1.Inengineeringapplications,theBOD5sludgeloadingsisgenerallylessthan0.10d-1.Keywords:sewagetreatment;AMAOprocess;sludgeloadingsNH4+-NTNTP200～500100～200160～350200～450130～32050～9050～14080～190100～20070～15080～350250～50030～5020～3015～2525～3540～6025～5020～3535～504～83～52～53～51Tab.1EnterqualityofBiologicaltankCOD/(mg·L-1)BOD5/(mg·L-1)ρ/(mg·L-1)SSBOD5AO91