Carrousel马迎霞, 张全森, 许爱红(焦作市污水处理厂,河南焦作454000) : 改良型Carrousel氧化沟在实际运行过程中存在污泥沉积严重、脱氮除磷效果不佳、污泥回流比的控制不够灵活等问题,采用扩容选择池、氧化沟内增加潜水推流器、安装回流污泥计量装置等方式进行技术改造,彻底解决了积泥问题,提高了脱氮除磷效率,并节省了大量能源,降低了生产成本,使系统实现良好的运行状态。 : 改良型Carrousel氧化沟; 污泥沉积; 脱氮除磷; 技术改造:X703.1 :C :1000-4602(2007)04-0029-03OperationandReconstructionofImprovedCarrouselOxidationDitchMAYing-xia, ZHANGQuan-sen, XUAi-hong(JiaozuoWastewaterTreatmentPlant,Jiaozuo454000,China) Abstract: DuringtheoperationofimprovedCarrouseloxidationditch,thereexistproblemsinclu-dingsludgedeposit,lowefficiencyofnitrogenandphosphorusremoval,inflexiblecontrolofsludgereturnratio.Thetechnicalreconstructionwasconductedbyenlargingselecttank,addingsubmergedpropellersinoxidationditch,andinstallingreturnsludgemeteringdevices.Thereconstructedoxidationditchhasnosludgedeposit,improvestheefficiencyofnitrogenandphosphorusremoval,savesaremarkableenergysource,reducestheproductioncost,andmakesthesysteminbetteroperatingstatus. Keywords: improvedCarrouseloxidationditch; sludgedeposit; nitrogenandphosphorusre-moval; technicalreconstruction :(0624440037)1 污水厂概况10×104m3/d,25×104m3/d。,,Carrousel,、、。《》(GB18918—2002),。1。1 Fig.1 Flowchartofwastewatertreatmentprocess29第23卷 第4期2007年2月 中国给水排水CHINAWATERWASTEWATER Vo.l23No.4Feb.20072 运行中存在的缺陷20032,3,BOD5、COD、NH3-N、SS、TP《》(GB18918—2002),。2.1 ,960.4m3,10×104m3/d,13.8min,,1.5~2h,,,。,,。2.2 200512,1#、2#,,,,2m(2)。2 2#Fig.2 DistributionofsludgedepositinNo.2oxidationditch,8000m3,23100m3,5.5h,,3.5h,2h,,。0.3m/s。,0.3~0.5m/s,BOD5,0.3~0.5m/s。,,。,,,0.3m/s,。,SS280mg/L,SS500~600mg/L,SS2000mg/L,,。2.3 、Carrousel,[2]。,。BOD5,SS,C/N,,。,DO5.5~6.5mg/L,ORP60~80mV,,。NH3-NNH3-N。2.4 。,,,;,,,。,,、,,;,,,;,,,,。3 改造方案① 。,3360m3(60m×14m×30第23卷 第4期 中国给水排水 ),4320.4m3;DN1000;4。② 。7,2。2m,4.3kW,41r/min。③ 。a.、,,。b.N3、N4,1,2m,4.3kW,41r/min。c.DN1400(3)。3 Fig.3 Installingsubmergedpropellersandmakinginnercirculatoryaerainoxidationditch④ 、。4 改造后的效果分析① ,30min,1.5~2h,,,BOD5。② ,0.3m/s,,,,。③ ,,。,245kW,,,12204h,2,5120h,,。④ 、,,,。,,、,。,,。,、,。5 结语,、、、,、,,,、、,,。:[1] ,.[J].,2001,17(2):16-18.[2] ,.Carrousel[J].,2002,18(1):67-70.E-mail:mayingxia@sina.com:2006-10-2731马迎霞,等:改良型Carrousel氧化沟的运行与改造第23卷 第4期