A2O底部鼓风曝气工艺应用于污水厂改造工程段跟定

A2/O1211．7100772．710000、。A2/O4×104m3/d《》GB18918—2002B。0．121/m3。A2/OTU992．3C1000－4602201722－0063－04ApplicationofA2/OwithBottomBlowingAerationtoＲeconstructionofWastewaterTreatmentPlantDUANGen-ding1HEFeng2YANGShao-bin11．SchoolofEnergyandArchitectureEngineeringXi’anAeronauticalUniversityXi’an710077China2．Xi’anＲesearchInstituteofThermalEngineeringXi’an710000ChinaAbstractWithregardtotheproblemsincludingthepoorperformanceoftheoriginalprocessef-fluentnitrogenandphosphorusexceedingthestandardsinthesecondwastewatertreatmentplantofShi-zuishantheplantprocesswasrenovated．TheoriginalOrbaloxidationditchprocesswastransformedintoA2/Owithbottomblowingaerationthetreatmentcapacitywasstill4×104m3/dafterrenovation．Thefi-naleffluentqualityreachedthefirstclasslevelBemissionstandardsofDischargeStandardofPollutantsforMunicipalWastewaterTreatmentPlantGB18918－2002．Thetotaloperationcostoftherenovationprocesswasincreasedonly0．121yuan/m3relativetotheoriginalprocess．KeywordsrenovationprojectA2/Owithbottomblowingaerationnitrogenandphosphorusremoval14×104m3/d2．8×104m3/d1．2×104m3/d。200410。20144852．48A2/O4×104m3/d。20155。2、。①·36·3322201711CHINAWATEＲ＆WASTEWATEＲVol．33No．22Nov．2017。②、。③。④。⑤。⑥、TN、TPB。33.1。《》GB18918—2002B、1。1、Tab．1Designinfluentandeffluentqualitymg·L－1CODBOD5SSNH3－NTNTP180～45050～16080～15024～3238～581．89～8．745016015032588．76020208152013.2A2/O。。A2/O①②③④、。《》10×104m3/dA/O、A/A/O1～3、《》ⅡA2/O。3.3A2/O。1。厂外提升泵房粗格栅进水提升泵房细格栅旋流沉砂池配水井厌氧池改造后氧化沟终沉池鼓风机房暂存于厂区预留用地内晾晒污水进水栅渣栅渣沉砂外运至惠农垃圾填埋场送至石嘴山市然尔特实业有限公司，掺煤后送入该公司锅炉燃烧PAC紫外线消毒间中水厂回流及剩余污泥泵房回流污泥污泥脱水机房泥饼1Fig．1Flowchartofwastewatertreatmentprocessaftertransformation·46·3322．watergasheat．com3.4、、、、、、、。3.4.1、、、、、。3.4.2①16、4。②4、2。③2、28m3230m33。3.4.3①2。、。－。。6000、、24、、6。15．84h。②2。124h。③2。41．5h。④、。⑤。31。⑥。4。⑦。42。⑧2。21。2。2Tab．2MainequipmentQ=1600m3/dH=200kPaN=160kW3Q=1440m3/hH=150kPaN=90kW4318m1．2m22．8m1．35m2Q=120m3/hN=54kPa211Q=20m3/h1N=5kW8215mm6000N=160kW24Q=3000m3/hH=40kPaN=55kW642Q=1400m3/hH=60kPaN=37kW431=45mH=40kPaN=1．5kW1—16Q=1800m3/hN=0．12kW4Q=180Nm3/minH=50kPaN=180kW431Q=9900m3/h2、—2Q=1000L/hH=1．0MPaP=1．1kW330m344201663。·56·．watergasheat．comA2/O3322TP、。TP95%。B。TP。3Tab．3Actualoperationeffectofrenovationproject/mg·L－1/mg·L－1/mg·L－1/%/%COD4061324588．8984．0BOD5128431293．7585．63SS121961290．079．33NH3－N31．9618．740．7297．8182．5TN43．3126．178．3479．3143．1TP8．701．770．3995．479．3154852．48。4418。343．43/m30．121/m3。4。4Tab．4Maintechnicalandeconomicindexes/%6．34/a12．22/2633．29/%7．59/%4．62/%5．146A2/O。。。。。。7①A2/O、TP95%。②A2/O。0．121/m3。1．A2/OJ．201632652－55．2．A2/OJ．2016327117－120．3．4M．2000．1974－。[e-mail]2017－05－03·66·3322．watergasheat．com