CASS工艺中曝气系统节能技术探讨

Vol.35200967CASS工艺中曝气系统节能技术探讨宋桂杰张韵(,100082)随着城市污水处理率的提高,污水处理的能耗问题越来越受到人们的重视,研究污水处理厂的节能问题是节能减排的重要工作CASS工艺运行能耗分布与传统活性污泥法有所不同,其中曝气能耗占总运行能耗的比例大探讨了CASS工艺中曝气系统的节能技术,说明了通过在工程中采取相应技术措施可以获得节能效果CASS曝气系统节能技术污水处理厂,,CASS,CASSCASS,50%CASS,CASS1CASS(),1,21CASS,,,CASSCASSCASS,323CASS4CASS424,CASS,CASS(1)CASSCASS,,(2)CASS,68Vol.352009,(3)CASS,,,20%,,50%~100%,,100%~300%(4)CASS,,,,,,CASS,10%~20%[1],CASS,50%~65%,CASS2CASS,,CASSCASS,,,,,,2.1CASSCASSDO,DOORPpH2.1.1DOCASS,,CO2H2O,,,,CASSDO,DO,CASSDO,DODO,DO,55DO,CASSDO,DO,DO,DODO,DO,,DODO,,,DO,,DO,DO,10%2.1.2DOORPpHDOCASS,,ORPpH,CASS,DOORPpH,[2]DOORPpHVol.35200969,,,,ORPpH,,ORPpH,,,,25%[3]DOORPpHCASSDOORPpH,DOORPpHCASS,,,DOORPpHDOCASSDOORPpH,ORPpH,DOCASSORPpH,DOORPpH,DOORPpH2.1.3DODOORPpH,,CASS,,,,,;,;,DO,,DO,,;,,;,,DO(AVS)2006,0.38kW!h/m30.25kW!h/m3,1[4]20077~9[4],30%,6VACOMASS,DO∀0.2~∀0.5mg/L,23.8%[5],,2.2CASS,,,CASS,CASS120063~82005()3456782005/m3/d54774552385291157976668925205456640/kW!h/d23653271742048219482193611545320029/kW!h/m30.450.410.4030.350.3540.3420.382006/m3/d63106576255366960553538614896456296/kW!h/d1230713830133781411840041375613565/kW!h/m30.210.250.260.2430.2710.2930.2570Vol.3520096GH(AVS)2.2.1CASS,,3kgO2/(kW!h),,,,,,,,,25%,4kgO2/(kW!h),,,,2kgO2/(kW!h)CASS,7100,75,5072.2.2,,,,2[6]2,,1mm2mm,,1mm2mm30%~60%,,,8[6]2/mm11641642884324641161682.2.3CASS,215(EDPM)2356m,,3,,,,CASS3215EDPM235/mm0.9~21~3/Nm3/h2~62~8/%5243/kgO2/(kW!h)5.35.25/Pa320036002.2.4,,Vol.35200971,,CASS,,,,,,,25%,,,,,CASS,,,,,2.3CASSCASS,;50%,CASS2.3.1,CASSDO,DO,,,,,-,50%~100%,,,,,CASS,,CASS,,DO,,,2.3.2,CASS4,,4CASS,4CASS4h4CASS/hCASS0~11~22~33~41122344,,CASS,2,CASS42,1,50%~100%,12,21,CASSDO,12,12h2,22h1DO,CASS,CASS4,212,21,CASSDO,,,,CASS3(1)CASS,50%~65%72Vol352009张莉1吕鑑1KenjiFurukawa2(1,100022;2GraduateSchoolofScienceandTechnology,KumamotoUniversity,Japan860-8555)为了研究以海绵作填料利用半硝化(PN)#厌氧氨氧化(ANAMMOX)联合工艺对实际废水进行脱氮处理的可行性,在一上流式厌氧固定床反应器中,利用熊本东部的某污水处理厂的污泥脱滤液进行了试验研究运行结果表明,联合工艺运行时,控制亚硝化反应器温度为(30∀1)∃pH为7.5溶解氧为1mg/L时,亚硝化的活性比较稳定,出水NO-2#N/NH3#N为1左右对于ANAMMOX反应阶段,在较高的总氮负荷3.6kgN/(m3!d)下,TNNH3#N和NO-2#N的去除率分别达到70%72%和91%,反应器处理效果较好此外ANAMMOX反应器在(17∀2)∃时NO-2#N去除率低于(25∀1)∃时6%;但当环境温度升高时,ANAMMOX菌的活性可以迅速地从低温操作条件下恢复(2~3d)ANAMMOX半硝化脱氮高浓度氨氮亚硝氮硝氮总氮(SHARON)#(ANAMMOX)ANAMMOX,,,50%O2100%,,[1~3]ANAMMOX,PNANAMMOX,11.1(1)PN(1a),,5.3L,(2)DO,DOORPpH,,20%(3)CASSCASS,,(4)CASS,21,,,,(5),,参考文献1..:,20022,,,.DOORPpHSBR.,2001,17(4):6~113.#.:,200645VACOMASSR6&:100082323:2008-06-30