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(,,730060) A/O、,,,A/O,。 :2007-11-22;:2008-01-24。:,,1968,,,。:0931-7989899。 、CO2、、4,、、,,—A/O。,,、,A/O,,。1 1.1 、、、CO2,、、。1.2 ,(Ni),。V5+、Ni2+,NaOHpH9.5～11.0。FeSO4,:Fe2++V5+=V4++Fe3+2V4++4OH-+O2=2VO(OH)2↑Ni2++2OH-=Ni(OH)2↑Fe3++3OH-=Fe(OH)3↑1.3 —(A/O)A/O,(BOD5),、,。A/O。,,。①1NH+4—NNO-32,;②HNO3,。pH7.5～9.2;③,。,NO-3—N,,。①,NO-2、NO-3;②,NO-3,,NO-320084312LargeScaleNitrogenousFertilizerIndustryApr.2008Vol.31No.2。,C/N;③pH,pH7.5～9.2。1 A/OA/O,BOD5,。NH+4—NNO-3—N,,,。A/O1。2 2.1 ,A/O。,,,。,。1,2。1 ,,10～15d;,,8～10d1.5～2.0h,8hA/O,。,,NO-3—N;NO-3—N;,,0.2mg/L,2.0～3.0mg/L,16～30℃,37～43℃pHpH7.0,pH6.58,。pH6.5～8.0、,,,BOD5:TKNBOD5:TPBOD5:TKN(),2～3。BOD5:TP()。,BOD5:TP,BOD5:TKN,,。,BOD5:TKN,,BOD5:TP,。,2 200718mg/LpHCODpHSVMLSSSVIpHCOD18.95398.2125.77.2893.74553207.47.2829.468.5528.65389.885.127.2882.43755220.37.426.147.3638.3341.666.57.490.74110221.97.418.92048.226282.57.194.43993237.57.123.813.858.6690.2205.27.188.43946226.17.236.87368.5549.91767.2781.64265191.77.3729.815.178.3631.9133.77.457.53778152.27.427.13.388.32327.61157.3153.84198127.47.318.24.5 ,,,,,。2,,,,,。2.2 (A-DA103),(390#),2,,。,,892.,COD,,。,20046,3。①622,,,COD;②,,;③,,;④,,,;⑤622,,,。3 mg/L17181920212223242526pH10.1810.010.110.29.9910.28.7810.359.249.40COD12.36.514.816.818.351.0351.5361.5207.5194.58.421.841411.219.619.978.960.7659.3666.1V0.210.170.110.210.080.270.350.330.210.29Ni0.1700.2450.060.080.170.060.270.1950.1450.22pH7.407.227.117.237.137.247.787.757.517.51COD12.97.38.611.313.913.923.511.518.811.22.82.82.80.8411.27.08.45.60.848.4 ,。,,,,,,,,。。MLSS,,C/N,:①,;②,。,,,,,C/N,。3 、3.1 ,,,“”。3.2 ,,,,。WASTEWATERTREATMENTMETHODFORLARGECHEMICALFERTILIZERANDRECYCLINGOFOPTIMIZEDWATERLiangZongzhong,ZhangYufangandZhangGuangke(ChemicalPlantofLanzhouBranchCo.,PetroChina,Lanzhou,730060)Abstract ByanalyzingtheA/Oprocessprinciple,operationandthefactorsaffectingtheef-fectofactivatedsludgemethod,inlightoftheactualoperatingconditionsbasedonbiologicaltreat-mentprocessandtheaffectingfactors,discussedtheoperatingmanagementandoptimizationofA/Oprocesstosaveenergy,reduceemissionsandrecyclewastewater.Keywords:activatedsludge,optimizedwaterquality,operatingmanagement,energy-savingandemissionreduction902008 31