改进型Orbal氧化沟在污水处理厂的应用7607b562caaedd3383c4d387

Orbal1231.3100582.3241003.310014。4.0m3/d。“+”45%～100%5.5m。CODNH3-NOrbal。。。OrbalAPPLICATIONOFMODIFIEDORBALOXIDATIONDITCHINAWASTEWATERTREATMENTPLANTSongRuiping1JinJian2TaoRujun31.CollegeofCivilEngineeringZhejiangUniversityHangzhou310058China2.LuxiWastewaterTreatmentPlantinJiangshanJiangshan324100China3.EastChinaInvestigationandDesignInstituteHangzhou310014ChinaAbstractItwaspresentedthatthedesignconditionsandfeaturesofLuxiWastewaterTreatmentPlantinJiangshanCitywhosetreatingcapacityphase-Ⅰwas40000m3/d.Amicroporeaeration-flowpusherprocesswasusedwithaeration-regula-tingrangeof45%～100%inthemeantimethedesignedwaterdepthwasincreasedto5.5mthusreducingthelandfortheoxidationditchandsavingtheoperationcost.ThemainindexoftheinfluentwasCODandNH3-NandthemainprocesswasthemodifiedOrbaloxidationditch.Besidesflexibleinfluentfacilitieswereusedtoadapttowaterimpactinrainyseasonandthewastewaterentereddirectlyintothemediumditchsothelossofsludgewasdecreased.Itwasshownbyatwo-yearopera-tionthatthisprocesshadexcellentenvironmentalandeconomicbenefits.KeywordsOrbaloxidationditchwastewatertreatmentplantmicro-poreaeration1。。20053。22.12020。、。20104.0m3/d20208.0m3/d。4.24×107m242.5。2.21∶1。、、CODNH3-N。CJ3082－1999《》。1。。0320104282GB18918－2002《》B。1mg/LpHρBOD5ρSSρCODρTNρTPpH1802204204046～9≤20≤20≤60≤20≤16～92.3Orbal1。1Orbal。、、012mg/L、。2.4、8m3/d4m3/d、4m3/d2。34。3.1、。。0.3m/s。。29.9m×4.4m2Qmax=2333m3/hQ′max=3420m3/h0.5～0.8m/s。12.6m×6.84m1Qmax=2333m3/hQ′max=3420m3/h。26.85m×5.0m2Qmax=2333m3/hQ′max=3420m3/h0.5～0.8m/s。4870mm2125m3/m2·h34.5s。35m×6.8m×6.4m2Q=1667m3/hMLSS=3000～4000mg/L1.5h。Orbal65m×46m×6.4m2Fw=0.070kg/kg·dθ=20dMLSS=3000～4000mg/LYd=0.88g/kg15.6h、、52∶33∶15、、00.52mg/L240m3/min。40m2qmax=0.93m3/m2·hqave=0.66m3/m2·h。8.04m×7.2m13min4s30000μW/cm2。8.1m×7.1m1R=100%Q=1667m3/hQ=720m3/d99.2%。5.0m×5.0m1W=5760kg/d99.2%720m32.9h。24m×9.9m1W=5760kg/d≤80%≤28.8m316h3～5g/kg。FeCl3。FeCl3TP。3.2OrbalOrbal。NH3-NTN。NH3-NTN1320104282。3.3Orbal。。。。。3.4Orbal“+”Orbal、、。、。“+”45%～100%、。5.5m6050m24920m2。530kW440kW20%。3.5240m7000mg/L。4200762GB18918－2002B。320085—10。3mg/LpHρCODρBOD5ρSSpHρNH3-N524357991565177.326.5524.05.9623654871469187.506.7122.34.2723351841161157.537.1219.24.7823051781271167.536.5120.23.5923852851366137.226.3521.33.71024153931469147.356.3718.24.331。。。。515942。Orabl。。[e-mail]2009－04－24櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅。155430～596。40“”3～4。。《·》2320104282