206200712POLLUTIONCONTROLTECHNOLOGYVol.20,No.6Dec.,2007·工程实例·MIC500m3/d* , , , , , (苏州科技学院环保应用技术研究所,江苏苏州 215011) :、、500m3/dMIC,,,20h、COD8kg/(m3·d),COD92%,。:MIC;;;:X703.3 :AApplicationofMICReactorin500m3/dCitricAcidWastewaterTreatmentLIUFeng, FENGJun-qiang, WUJian-hua, SONGWei, JIANGJing-dong, MASan-jian(InstituteofEnvironmentalProtectionApplicationTechnology,SicenceandTechnologyCollegeofSuzhou,Suzhou,Jiangsu215011,China)Abstract:AprivatelydesignedandtestedMICreactorwitha500m3/dofloadwasusedinthetreatmentofwastewaterwithhighconcentrationofcitricacid.After2-monthexperimentrunning,thereactorpromisedaCODremovalrateof92%whentheHRTwas20handthevolumeloadofCODwas8kg/(m3·d).Keywords:MICanaerobicreactor;citricacidwastewater;particlesludge;sludgequality:2007-07-12*:(JH01-084):(1983—),,,,。 200112“”,IC,1000m3/dMIC(),[1],,2002。、、500m3/dMIC,2,MIC,。1 MIC、1.1 MIC反应器的结构和工作原理MIC1。,6m,18m,500m3,。,1m,,MIC,,:(1)、;(2);(3);(4)pH。3m,85m3,17%;3~11m。,,,,,COD。:(1),;(2),,。。,,,:(1)。,,200712 .MIC500m3/d·107 ·1 MIC,,。(2)。,,。(3)。,。(4),。,11~15m,85m3,17%;,15~18m,85m3,17%,。,。:(1)、、,;(2)、;(3)。,,。MICIC,,,。、、、。,,,,。1.2 MIC反应器试验的水质和水量,,,5000t/a,500m3/d,COD10~13(g·L-1)。。1。1 CODcr/(g·L-1)BOD/(g·L-1)pH/℃≤13≤9.83~535~371.3 MIC反应器运行的温度选择35℃,45℃,55~65℃。,,,、、[2],。1.4 工艺流程:※(MIC)※()※(),,2。2 2 MIC2.1 MIC反应器污泥接种MIC,、。,。MIC“”,2,MIC1/3。2 /%800.40~0.45、,,。(35±1)℃,,,。·108 · 2062.2 MIC反应器的启动MICCODcr0.5kg/(m3·d),COD80%。,,CODcr0.5kg/(m3·d),。,,。CODcr5kg/(m3·d),0.2~0.4mm,,5。MICCOD3,MIC4。3 MICCOD4 MIC,MIC13d,,,。,,,。3,13d,MIC,,,COD100~300mg/L,COD90%,CODcr0.33kg/(m3·d)5.68kg/(m3·d)。2.3 MIC反应器运行研究MIC,,,。,MIC35~37℃,COD2、VFA、pH4。5、6。5 MICCOD6 MIC5、6,,20m3/h,CODcr10.4kg/(m3·d),20h,CODcr90%,COD500mg/L,pH7,VFA3~5mmol,。3 (1)MIC,(下转第111页)200712.A2/O·111 ·2 、 /(mg·L-1) /(mg·L-1) /% CODBOD5SSNH3-NTNTPCODBOD5SSNH3-NTNTPCODBOD5SSNH3-NTNTP836514025133352.140.74.025.10.47.70.0888.5196.9887.7898.6878.8496.19955322353424345.037.04.223.00.687.90.0792.8498.1094.7297.0176.2798.621071428166627357.843.54.418.40.716.80.0893.3998.3896.7697.3380.2798.861152625246828357.542.64.715.290.577.80.0891.6097.8995.8997.9377.2398.954.3 泡沫问题,A2/O。,,,[1]。,,,,SVSVI,。C、N、P,。4.4 污泥上浮,,,。,,,,。5 ,,、[2],、(8h),A2/ODO(2h)、MLSS()、SV(2h)SVI(),DO。。6 A2/O,、,,,,。,,4.5m3/d,,BOD56.19mg/L,CODcr38.5mg/L,SS12.16mg/L,NH3-N2.33mg/L,TP0.15mg/L。,。[][1] ,,.[M].:,1999.[2] .AO[J].,2004,8:x.(上接第108页)MICCOD8kg/(m3·d),COD90%。(2),MIC,,,pH,pH,pH7.0。(3)MIC,,。(4)MIC,、UASB,,、。[][1] ,, ,.(MIC)[J].,2002,20(4):24-27.[2] ,,,.[M].:,2003.121-127.