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A/O 刘旭东 杨正松 张健 ( 518048) () 1.1m/h,2,—4∶1、5∶16∶1。,,。,COD、BOD5,—、。,45cm。 — Astudyonsewagetreatmentwithanoxic-aerobicaeratedintegrativebiologicalfilter LiuXudong YangZhengsong ZhangJian (YueZhongGroupCompanyLtd. Shenzhen518048) (EnvironmentEngineeringDept.ofQinghuaUniversity)Abstract Anoxic-aerobicaeratedintegrativebiologicalfilterisstudiedtotreatsewagewhenhydraulicloadis1.1m/h,recirculationratiois2,ratioofairandwateris4,5,6to1.TheresultsshowthattheprocesscantreatsewageeffectivelyandtheeffluentCOD,SS,BOD5,NH3-Ncanmeetthenationaldischargestandards.Theremovalratecanbeenhancedwithin-creaseofrationofairandwater.Theprocesshasgoodnitrificationanddenitrificationresults.Nitrificationmainlyoccurrsinaerobicareaanddenitrificationprimarilyoccurrsinanoxicarea.Keywords anoxic-aerobicaeratedintegrativebiologicalfilter floatingmedia nitrification denitrificaton1 (BiologicalAeratedFilter,BAF),2070,,,。,,2080,2090,2090,BAF,,、。—,,,、、。—,。2 BAF,,(0.02m2)。,186cm,0.027m2,2.85m,1.95m,0.9m。,0.906～0.966g/cm3。3.5～6mm。1。,,,。,,。,,·14· IndustrialSafetyandEnvironmentalProtection 2002285 May2002,。。1。1 1;2;3;4;5;6;7;8;9;10;11;12;131 4∶15∶16∶12.1～3.83.9～4.104.11～5.16COD/(mg·l-1)215.2232.3193.5BOD5/(mg·l-1)113141.395SS/(mg·l-1)4139.835.4/(mg·l-1)33.237.333.4/℃12～1417～1417～21:1.1m/h;2∶1,2090,。3 3.1 SS2SS。SS5mg/l,,SS,,,SS。3SS94.4%、89.9%、88.4%。,SS,,SSSS。,SS,SS,。2 SS3SS。,,SS;,。,SS,,。,,。,,。,SS,SS,SS。3 SS3.2 CODSS4。COD,COD。3,COD:215.2、232.3、193.5mg/l,52.0、41.7、30.3mg/l,75.1%、81.6%、83.6%。5COD,,COD。。,,、,,COD·15·。,;,,,COD。6∶1,COD,COD,COD,。4 COD5 COD3.3 BOD5BOD56。,BOD5,BOD5,。,BOD5,。5∶16∶1,BOD5。3,BOD5:113、141.3、95mg/l,7.5、5.5、3.5mg/l,93.3%、96.1%、96.3%。7。BOD5COD,,4∶1BOD5,。,BOD5。,,,。,。6 BOD57 BOD53.4 ,。,,。8。8,SS、COD,,。3,,:33.2、37.7、33.4mg/l,18.5、16、8.8mg/l,44.3%、57.9%、78.4%。9。COD、BOD5,,,,20mg/l10mg/l,。6∶1,(SS、COD、BOD5,5,),,·16·。8 9 3.5 、、。10。 10,,,,,,,。,,45cm0,100%。,,10 6∶1。,。4 (1)—。1.1m/h、2,4∶1、5∶16∶13SS88%,COD75%,BOD590%,,。(2),COD、BOD5,4∶144.3%6∶178.4%。(3)—、。,45cm。(:20011129) 《》2002520《》,,;64,96。、、、E-mail、、《》200242·17·