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FND-CASS杨爽1 赵鹏程2(1. 455000; 2. 221000) (CASS),,,-(FND-CASS)。,FND-CASSCASS,,。DO,FND-CASSTNTP80.52%、80.44%,CASSTNTP73.51%、67.00%。 FND-CASS ExperimentalStudyonMunicipalSewageTreatmentbyFND-CASSYANGShuang1 ZHAOPengcheng2(1.Dept.ofChemicalandEnvironmentalEngineering,AnyangInstituteofTechnology Anyang,Henan455000)Abstract ForfurtherenhancingnitrogenandphosphorusremovalratebyCyclicActivatedSludgeSystem(CASS),thispaperstudiesthetreatedeffectofFrequentNitrificationandDenitrificationCyclicActivatedSludgeSystem(FND-CASS)processonnitrogenandphosphorusremovalbyalteringtheperformancewayofCASSprocess.ComparedtoCASS,FND-CASSprocessislowerthantheCASSprocessinorganicsubstanceremovalandammoniacalnitrification,butitisadvantageousinnitrogenandphosphorusremoval.Underthesameconditionofin-flowandlowerDOconcentration,theratiosofnitrogenandphosphorusremovalbytheFND-CASSprocesscanreach80.52%and80.44%respectively,buttheratiosofthosebyCASSprocesscanonlyreach73.51%and67%respectively.KeyWords frequentnitrificationanddenitrificationcyclicactivatedsludgesystem(FND-CASS) aerobicpulse simultaneousnitrifica-tionanddenitrification(SND) nitrogenandphosphorusremoval0 CASS。,、。、、,,。,,,,。CASS,-CASS,FND-CASS(FrequentNitrificationandDenitrificationCyclicActivatedSludgeSystem)。CASS,:①,DO≤0.5mg/L。,,;[1]。②,、。,n()、,nA/O,;,,。1 1.1 ,:64.5cm,25cm,41cm,60L,6L,54L。1。1—;2—;3—;4—5—;6—;7—;8—1 、,。,,DO≤0.5mg/L,,、,-。,,+,,,。1.2 (1):。·13·20113710October2011 IndustrialSafetyandEnvironmentalProtection(2):,1,2。1 (1L)/g/g0.10NaHCO30.300.25CaSO4·2H2O0.020.03FeSO4·7H2O0.02NH4Cl0.10MnSO4·H2O0.02KH2PO40.022 /(mg·L-1)/(mg·L-1)CODNH3-NTN240~31530~4035~45TPCOD/TNCOD/TP3~56~963~801.3 3。2 3 [2]12345678CODNH3-NTNTPMLSSDO-105℃DXI340XDS-1B ,FND-CASS4,。2.1 COD2。2,,COD240~315mg/L,,COD29~33mg/L,88%~91%,。4 FND-CASS/(L·d-1)MLSS/(mg·L-1)DO/(mg·L-1)/℃/d/%/h/h/min/min/min/min603500~40001.0~2.025~3015~2020655305301/32 COD2.2 3:(1):,。(2):。(3):,。2.2.1 NH3-N3。,NH3-N32~34mg/L,NH3-N5~6mg/L,81%~84%,。3 NH3-NFND-CASSCASSNH3-N,DO。CASSDO3.0~5.0mg/L,FND-CASSDO1.0~2.0mg/L。,FND-CASS,。,FND-CASS。2.2.2 TN4。4,TN40~44mg/L,TN7~10mg/L,78%~82%,。4 TNFND-CASS。DO,;FND-CASS,、(),、,nA/O,。,FND-CASS,A/O+A。[3],“”,·14·,“”,、。,,,“”“”。FND-CASS,“”“”(),,。2.3 TP5。5,TP3~4mg/L,TP0.6~0.8mg/L,78%~83%,。5 5TP,FND-CASSCASS。CASSTP1.0~2.0mg/L,,:CASS,,,,1.0mg/L。FND-CASS,-,,。,,,。3 (1)FND-CASS,6h,COD29~33mg/L,88%~91%;5.3~6.1mg/L,82%;7.2~9.5mg/L,80%;0.8mg/L,82%。(2),,,CASS。[1].[M].:,2002:2-4.[2].[M].3.:,1989.[3].MSBRAAO[D].:,2000:12. 杨爽,女,1980年生,河北辛集人,硕士学位,现为安阳工学院化学与环境工程系讲师,研究方向为城市污水处理。(:2010-09-13)(12) (1)。1%,;1%(),。,pHpH。(2)。1000mL,15.2mg/L,100mL,pH6~71%,5min50mL2mL,,。,7.5mL,。20mL6h8h;。pH3~4,6.5mL1%,,。,1%,pH2.5mL。5 (1)pH,,,。,。(2)pH3~4,,。(3)pH,,。(4)pH3~4,,,GB21900—20080.2mg/L,。[1],,.[M].:,2003:39-48.[2],,.[M].:,2007. 李国会,男,1973年生,硕士,研究方向:水处理技术和大气污染控制技术。(:2010-09-19)·15·
本文标题:FNDCASS工艺处理城市污水的试验研究杨爽
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