好氧脉冲曝气对FNDCASS工艺脱氮除磷效果的影响杨爽

35620106ENVIRONMENTALSCIENCEANDMANAGEMENTVol.35No.6June2010:2009-10-27:(1980-),,,,。:1674-6139(2010)06-0111-05FND-CASS杨爽1,阎冬1,郭常颖2(1.,455000;2.,221000)　:通过改变CASS工艺的运行方式,采用好氧脉冲曝气,研究FND-CASS工艺对城市生活污水脱氮除磷效果的影响。试验结果表明:好氧脉冲曝气对系统的脱氮除磷有显著影响,通过改变好氧脉冲曝气方式,发现好氧脉冲曝气对COD和NH3-N的去除有一定影响,对TN和TP的去除有显著影响。试验表明,本工艺的最佳好氧脉冲曝气方式为5-5(min),COD、NH3-N、TN和TP的去除率分别为89.32%、82.43%、80.52%和80.44%。:FND-CASS工艺;脱氮除磷;好氧脉冲曝气:X703.1:AEffectofPulsantAerationonNitrogenandPhosphorusRemovalofFND-CASSYangShuang1,YanDong1,GuoChangying2(1.AnyangInstituteofTechnology,Anyang455000,China;2.DepartmentofAirfieldEngineering,XuzhouAirforceCollege,Xuzhou221000,China)Abstract:ThispaperstudiesthetreatedeffectofFND-CASSprocessonnitrogenandphosphorusremovalbyalteringtheperformancewayofCASSprocess.Thetestresultsareshowedasfollows:Pulsantaerationhasmuchimpactonnitrogenandphos-phorusremoval.Whenchangingthetypeofpulsantaeration,wefoundthatpulsantaerationhassomeeffectonorganicsubstanceremovalandammoniacalnitrificationwhileithasmucheffectonnitrogenandphosphorusremoval.Theoptimalpulsantaerationis5-5(minutes),theremovalratioofCOD,NH3-N,TNandTPare89.32%,82.43%,80.52%and80.44%respectively.Keywords:frequentnitrificationanddenitrificationcyclicactivatedsludgesystem(FND-CASS);pulsantaeration;nitro-genandphosphorusremoval　　CASS。,、。、、,,。:,,,,。CASS,-CASS,FND-CASS(FrequentNitrificationandDenitrificationCyclicActi-vatedSludgeSystem)。CASS,:(1),DO≤0.5mg/L。,,;[1]。(2),、。,n()、,nA/O,;,,。1　1.1　FND-CASS,:L=64.5cm,B=25cm,L=41cm,60L,6L,54L。1。·111·35620106·FND-CASSVol.35No.6June20101.;2.;3.;4.;5.;6.;7.;8.1　、,。,,DO≤0.5mg/L,,、,-。,,+,,,。1.2　1.2.1　接种颗粒污泥1.2.2　试验用水,1,2。1　(1L)(g)NH4ClKH2PO4NaHCO3CaSO4·2H2OFeSO4·7H2OMnSO4·H2O0.100.250.030.100.020.300.020.020.022　(mg/L)CODNH3-NTNTPCOD/TNCOD/TP240～31530～4035～453～56～963～801.3　3。3　[2]12345689CODNH3-NTNTPMLSSDO-105℃DXI340XDS-1B2　CASS,。,,。,,。DO1.0mg/L～2.0mg/L。,FND-CASS。:(1)15-5(min);(2)10-5(min);(3)5-5(min);(4)10-10(min);(5)15-15(min)。1,4。4　(L/d)MLSS(mg/L)DO(mg/L)T(℃)SRT(d)%603500～40001.0～2.025～3015～2020(h)(h)(min)(min)(min)(min)65/305301/3　　,,、。52、3、4、5、6,7。·112·35620106·FND-CASSVol.35No.6June20105　(mg/L)115-5(min)210-5(min)35-5(min)410-10(min)515-15(min)COD%272.7721.8392.00275.9524.8890.98289.6530.9489.32290.4232.7088.74297.6437.7287.33NH3-N%34.232.8591.6735.744.4587.5532.845.7782.4333.315.7882.6532.075.0784.19TN%41.2514.0066.0642.1911.7372.2042.158.2180.5242.1910.3875.4041.6712.6069.76TP%3.591.5157.943.541.3861.073.630.7180.443.561.2864.043.701.5657.842　13　2·113·35620106·FND-CASSVol.35No.6June20104　35　4　　57,CODNH3-N。,,CODNH3-N85.00%80.00%,,1,92.00%90.98%。TNTP,3,80.52%80.44%,。TN,3,80.00%。0.5mg/L≤DO≤2.0mg/L,,TN,(SND)。DO1.0～2.0mg/L,,5minDO0.5mg/L。,DO,,,TN。:,,,。,,TN。DO,,,,NH3-NTN。,123,1,·114·35620106·FND-CASSVol.35No.6June20106　57　3-NTN。57,1NH3-N,91.67%,TN66.06%;3,NH3-N82.43%,TN80.52%。1、23,,DO,DO,,,NH3-N,TN;,。,3、45,,5min、10min15min,TN。,4TN75.40%,35%,5TN,69.76%。,NH3-N,TN。:(1)DO。,DO,DO,,。(2)。35h,35-5(min),30()、,30A/O;410-10(min),15A/O,15、。515-15(min),10A/O,10、。,、;(3)DO。R=KLa(CS-C)-dC/dt,DO,,。35-5(min)30,DO,,TN;(4)。130,231510,3,。,3,、、、,,TN。(下转第118页)·115·35620106·4-GC/MSVol.35No.6June20106　4-ng/L4-4-4-4-222192111912219263192121720232934213　　4-6,4-,4-[6]。4-0.006μg/L,4-0.032μg/L,4-0.005μg/L,4-0.0019μg/L,4-4-。[7]。4-1.6μg/L0.99μg/L[8]。3　/4-、,,。4-,,,4-,,。:[1]王红秋.壬基酚的生产与应用[J].广州化工,2001,29(1):37-38.[2]邓茂先,陈祥贵.环境内分泌干扰物研究进展[J].国外医学卫生学分册,2000,27(2):65-68.[3]李佳圆,栾蒙生.环境内分泌干扰物与人群健康的关系[J].国外医学卫生学分册,2001,28(4):193-196.[4]袁理,曾光明,张长,等.痕量壬基酚及相关化合物的样品预处理和测定[J].环境污染与防治,2004,26(6):475-478.[5]赵美萍,李元宗,常文保.酚类环境雌激素的分析研究进展[J].分析化学,2003,31(1):103-109.[6]周鸿,张晓健,胡建英,等.饮用水中壬基酚及前体物的分布特性[J].环境与健康杂志,2004,21(5):288-290.[7]侯绍刚,徐建,汪磊,等.黄河(兰州段)水环境中壬基酚及壬基酚聚氧乙烯醚污染的初步研究[J].环境化学,2005,24(3):250-254.[8]范奇元,金泰,蒋学之,等.中国部分地区中壬基酚的检测[J].中国公共卫生,2002,18(11):1372-1373.(上接第115页)　　TP,,(VFA),。[3],1mg7.5mgVFA。T=6h,1、2315min、10min5min5min,,,123,3,,,,TP。,45,3、4523,5h,、,,,,,,,。,,3COD、NH3-N、TNTP,,,。3　。T=6h,5h,30min,5min,25min,。,35-5(min),CODNH3-N,,TNTP,80.52%80.44%,。:[1]张统主编.间歇式活性污泥法污水处理技术及工程实例[M].北京:化学工业出版社,2002.[2]国家环保局《水和废水分析监测方法》编委会编;魏复盛主编.水和废水分析监测方法(第三版)[M].北京:中国环境科学出版社,1989.[3]冯生华.污水生物除磷的糖控制(CHC)工艺[J].中国给水排水,1999,15(3):2-21.·118·