城镇污水处理厂氧化沟工艺节能技术措施探讨杨根权

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(,230041):,。:、、、65%~80%、10%~25%、5%~8%1%~3%。,。:;;;。:X703:A:1006-8759(2018)06-0044-06DISCUSSIONONENERGY-SAVINGTECHNICALMEASURESFOROXIDATIONDITCHPROCESSINURBANSEWAGETREATMENTPLANTYANGGen-quan(HefeiDesignandResearchInstituteofCoalIndustry,Hefei230041,China)Abstract:Basedonthemonitoreddataofenergyconsumption,theenergy-savingpotentialsandproblemsduringtheoperationofoxidationditchprocesswerestudied.Solutionswereproposedandtestedthroughfieldtests.TheresultsshowedTheenergyconsumptionofbiochemicalprocess,sewagepumping,sewagerecirculation,sludgedisposalwas65%~80%,10%~25%,5%~8%and1%~3%ofthetotalenergyconsumptionofoxidationditch,respectively.Combinedwithsomespecificcases,theapplicablemeasuresforenergysavingandconsumptionreductionoftheoxidationditchprocessandthecorrespondingeffectsweresystematicallyexpounded.Keywords:Oxidationditchprocess;Energyconsumption;Energysaving;Technicalmeasures.:2018-10-11:,,47,19937,,,()、、,。EnergyEnvironmentalProtection326201812Vol.32.No.6Dec.,2018,,,60%~90%。,,0.3%[1]。,,。,,,;,,,。,,10,,。201531,《》(DB/T1118-2014),,。,,,、。1。,、、、、、。[2]559,,、SBRA2/O,32.1%、20.2%14.7%;,、A2/OA/O,26.2%、19.1%17.1%,。,,0.302kWh/m3,A2/O(0.267kWh/m3)A/O(0.283kWh/m3),0.290kWh/m3,。22.1,6(3),,,,,。2.2,()、()、、(,),61。2.3,:,65%~80%;,10%~25%;5%~8%;,1%~3%。,[3]、[4]。1、,,。,BA,25%~35%[3][5]。1,、;,1。2.46,:2.4.10.302Kwh/m3,61(m3)2.52.53.06.018.02.5(m3)2.01.52.15.415.01.82008.122008.32009.22002.92004.12009.10BBABABCOD(mg/L)200-350150~250150~180150~300150~400100~200COD(mg/L)25~4520~4020~3020~4510~4015~40NH3-N(mg/L)0.5~2.50.5~2.00.8~2.00.5~3.00.2~2.00.8~3.5(Kwh/d)51216950818613828420485996(%)24.911.714.924.65.113.7(%)65.677.779.866.692.176.0(%)6.68.34.47.81.97.0(%)2.92.30.91.00.93.3(Kwh/m3)0.260.460.390.260.280.33COD(Kwh/Kg)1.072.732.781.241.122.72·45·3(COD)。3,3m3/d,,。[3]5m3/d;[5]0.5m3/d10m3/d。(5m3/d),,,。2.4.26(DO)。,2mg/L,,7mg/L。,DO,;,,,,,,、,。2.4.3,、、,。(),,。1400mm,400~530mm,510mm。,,,,,,500mm,,,480mm。2.4.4,,,,,,63.0~4.0m,2.0m,、。、,(0.7m),,,。2.4.5,,2010《》,,、、、,、,。,,。3,,65%~80%,,、。3.1,,,。,,0.17Kwh/m3,。,,,,;,,,;,,,,326·46·4kgO2/Kwh,(EA)35%~60%[6]。,,、,。、、、,,65。,,,2~3kgO2/Kwh,,。3.2(DO),DO,,,,10%~30%[7]。,DO,。,,,,。,,,1,,,66Kw49.5Kw。3.3,,0.17Kwh/m3,6。,DO0.3mg/L,。DO0.1mg/L~0.3mg/L,(),,COD,,,。,,,。,/,(NO2-N),NO2-N,NO2-NNO3-N,,//0.5,25%,/NO2-NN2,[6]。3.4,、,。,,。,,,,,1.2m[8]。3.5,、、、,,,、+。,,,。,。,,,,·47·,。,(DO),。,,(),,,、、,,15%~30%,。3.625%~100%(,,),,,。,、,。,,、,,60%,,80%。3.7,,,、。、、,,、、、。,,,,,。,。,,,15%[6]。3.8、,,,3%,、、、,2%,,。。,;,,、。3.9,,,30%。,2.5m3/d,,1.5m3/d,0.46Kwh/m3,,、,+,,,,,0.26Kwh/m3,43%(,2.1m3/d,,)。3.10,、、。,,,;,,,、、。,,,。、、、。326·48·,,、,;,,、。,,,、、。40.302Kwh/m3,0.290kWh/m3,,。:,65%~80%;,10%~25%;5%~8%;,1%~3%。,、。、、、、、,,,,30%。[1].[J],,2018,(6),110-112[2],,,,.[J],,2008,34(10):42-45[3],,,,,,,.[J],,2011,37(8):31-34[4],,,,.[J],,2011,25(6):12-16[5],,,.[J],,2012,38(3):48-51[6].[J],,2010,24(2):22-26[7],,.[J],,1999,15(1):21-23[8],,.[J],,2009,35(5):155-158·49·

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