CAST工艺在大连老虎滩污水处理厂的应用房安富

CAST房安富,王旭,王文光(大连清华紫光水务有限公司,辽宁大连116015):介绍了大连老虎滩污水处理厂循环活性污泥工艺(CAST)的设计参数及运行情况,并分析了冬季启动和运行变周期运行曝气沉砂池配水方式和鼓风机设计风量对实际运行效果的影响:污水处理厂;循环活性污泥法;冬季启动;变周期运行:X703.1:C:1000-4602(2007)04-0061-04ApplicationofCASTinLaohutanWastewaterTreatmentPlantofDalianCityFANGAnfu,WANGXu,WANGWenguang(DalianTsinghuaUnisplendourWaterSupplyCo.Ltd.,Dalian116015,China)Abstract:ThedesignparametersandoperationstatusofCyclicActivatedSludgeTechnology(CAST)inLaohutanWastewaterTreatmentPlantofDalianCitywereintroduced,andtheimpactsofwinterstartupandoperation,operationwithchangedcycles,aeratedgritchamber,wastewaterdistributionmethodanddesigncapacityofbloweronpracticaloperationresultwereanalyzed.Keywords:WWTP;CAST;winterstartup;operationwithchangedcycles,,8104m3/d,BOT(),,20046,200510,,1设计进出水水质,10,K=1.3COD350mg/LBOD5150mg/LSS240mg/LNH3-N26mg/LTP3mg/L,(GB189182002)B,COD60mg/LBOD520mg/LSS20mg/LNH3-N8mg/LTP1.5mg/L(CAST),2主要构筑物及设计参数,15~20mm0.2mm,,21800mm,3mm,2(1800mm1000mm),1;61第23卷第4期2007年2月中国给水排水CHINAWATER&WASTEWATERVo.l23No.4Feb.2007,3min,18.5m,CAST2,,4,50m20m,8,8,,4(1100mm1100mm),:/2h;1h;1h;4h;6/d(),,20%,,,10%~15%6300,1.1m31185m3/h35kPa,160m3/h140kPa,28m,2166m3/h,2.3m,37.6L/s,:8104m3/d;6000m3;600m3;0.075kgBOD5/(kgMLSSd)();21d;10.5d;6.0m;3.84m;2.16m;MLSS5730mg/L;MLSS3670mg/L27600m3/h,2,2,3(1),115m3/min,0.69MPa,,,45%~100%4,31:Q=1420m3/h,H=240kPa,11,,10h,,3,21,35~50m3/h,20%,3,1,2~4kg/,t0.5%;13实际运行情况分析,20051028,20061(8.2~8.7)104m3/d,,,,,,200646,11Tab.1InfluentandeffluentqualityandremovalefficiencyCODBOD5SSNH3-NTNTP4/(mgL-1)202.9094.7818017.3024.402.59/(mgL-1)34.1011.9017.91.9314.250.88/%83.2087.4490.0188.8441.6066.025/(mgL-1)202.3096.22151.0017.3422.402.61/(mgL-1)27.508.1113.000.2613.191.11/%86.4091.5791.409941.1157.506/(mgL-1)175.6970.52136.0018.4422.762.54/(mgL-1)28.337.808.760.211.921.121/%83.8888.9493.5699.947.6355.87,,,62第23卷第4期中国给水排水~25.60mg/L,,,5611~15,,60%~99%;17~27mg/L,15mg/L,25%~50%;0.98~4.09mg/L,1.0mg/L,40%~60%pH7.5~7.9,pH6.90~7.50,,pH7.5~7.9,,;20061,BOD5/NH3-N4~6,BOD5/TP30,,;,,(4~6mg/L),,31,,20~30,3510,22006132Tab.2ParametersofoperatingWWTPinwinterandinfluentandeffluentquality123COD/(mgL-1)134.3931.41137.0925.7323027.51BOD5/(mgL-1)45.349.2368.5911.92110.610.19SS/(mgL-1)69.4514.6576.5617.16176.809.40NH3-N/(mgL-1)15.907.0014.742.5718.222.25TN/(mgL-1)18.2314.3619.9915.1424.2014.13TP/(mgL-1)3.350.931.590.903.301.07/4.50~8.736.91~8.276.99~9.632,CAST,10(5.0)2500~3500mg/L11d,CODBOD5SSB,COD60mg/LBOD520mg/LSS20mg/L,,;NH3-NTN,3200646,,,CAST,:,,20%,286~330t,,COD,400~500mg/L,;,,200~300mg/L,,;,8d,2d,,,,3220064,,,,7,,CASTCAST,CAST:103min60min45min,208min,30min,,3,,,3,,,,,1200063房安富,等:CAST工艺在大连老虎滩污水处理厂的应用第23卷第4期m3/d,,CAST,2~43CASTTab.3InfluentandeffluentqualitybeforeandafterchangingtheoperationcyclesCOD/(mgL-1)198.6031.70225.6032.90BOD5/(mgL-1)95.5212.00103.9813.20SS/(mgL-1)130.0015.40261.0014.40NH3-N/(mgL-1)16.951.4219.221.93TN/(mgL-1)23.8013.8227.4016.02TP/(mgL-1)2.570.852.850.96/9.57~10.4010.38~11.6833,,,CAST,,,4,,,CAST0.5mg/L,0.5mg/L,30min2.5mg/L,CAST,CAST,1~2.5mg/L,CAST,CAST1~2mg/L,(0.5mg/L),,,;,50%~60%,40%,,34,50%,30%,42,2,50%,,,2~6mg/L,9mg/L,,,,,,,4结语CAST,,CAST,,CAST,,CAST,;,CAST,,,,,:[1]GoronszyC,,WutscherK.(CAST)[J].,1996,12(5):4-10.:[phone]E-mail:[e-mail]:2006-08-1564第23卷第4期中国给水排水