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1、第24卷第5期環(huán)境科學(xué)學(xué)報(bào)Vol.24,No.52004年9月ACTASCIENTIAECIRCUMSTANTIAESep.,2004文章編號(hào):0253-2468(2004)05-0769-07中圖分類號(hào):X703文獻(xiàn)標(biāo)識(shí)碼:A交替好氧P缺氧短程硝化反硝化生物脫氮ò.過程控制模式的確定11,22高大文,彭永臻,王淑瑩(1.哈爾濱工業(yè)大學(xué)市政環(huán)境工程學(xué)院,哈爾濱150090;21北京工業(yè)大學(xué)環(huán)境與能源工程學(xué)院,北京100022)摘要:對(duì)交替好氧P缺氧短程硝化反硝化生物脫氮工藝中曝氣和攪拌時(shí)間的控制模式進(jìn)一步研究.結(jié)果表明,O
2、RP(氧化還原電位)和pH的一階和二階導(dǎo)數(shù)變化可以作為控制交替好氧和缺氧運(yùn)行方式的過程控制參數(shù).在此基礎(chǔ)上,建立了控制交替好氧和缺氧時(shí)間的過程控制模式.按照所建立的過程控制模式對(duì)進(jìn)水COD、氨氮和總氮濃度分別為194155~924190mg#L-1,25168~81148mg#L-1和36146~90155mg#L-1.的廢水實(shí)施交替好氧P缺氧控制,經(jīng)過2個(gè)月的運(yùn)行,COD、氨氮和總氮的下降率和去除率仍然保持在90%,99%和92%.因此,交替好氧P缺氧短程硝化反硝化生物脫氮工藝控制模式是可行的,它不但科學(xué)地分配了好氧和缺
3、氧時(shí)間,提高了反應(yīng)速率,而且為最終實(shí)現(xiàn)該工藝的模糊控制奠定了理論基礎(chǔ).關(guān)鍵詞:交替好氧P缺氧;SBR;短程硝化反硝化;實(shí)時(shí)控制Alternatingoxic-anoxicShortcutNitrification-Denitrificationò.Studyoncontrolmode11,22GAODawen,PENGYongzhen,WANGShuying(11SchoolofMunicipal&EnvironmentalEngineering,HarbinInstituteofTechnology,Harbin1500
4、90;2.SchoolofEnvironmentalandEnergyEngineering,BeijingUniversityofTechnology,Beijing100022)Abstract:Onthebasisofpreviouspaper,thispaperfurtherstudiesthecontrolmodeforaerationandmixingtimeinbiologicalnitrogenremovalprocessviashortcutnitrification-denitrificationund
5、eralternatingoxicPanoxicconditions.TheresultsshowedthatthevariationofthefirstandthesecondderivativeinORPandpHcurvecouldcontrolalternatingoxicPanoxicshortcutnitrification-denitrification.Therefore,therea-ltimecon-trolmodeofalternatingoxicPanoxicshortcutnitrificatio
6、n-denitrificationisdeveloped.ThecontrolmodecouldmakeefficientalternatingoxicPan-oxicshortcutnitrification-denitrificationwheninfluentCOD,NH+-NandTNwereat194155~924190mg1L-1,25168~81148mg#L-1and436146~90155mg#L-1.Duringtheexperimentalperiodoftwomonths,theremovalrat
7、eofCOD,NH+4-NandTNweremorethan90%,99%and92%respectively.Conclusion,therea-ltimecontrolmodeofalternatingoxicPanoxicshortcutnitrification-denitrificationisfeasible.Itnotonlycontroloxicandanoxictimeaccurately,andimprovesreactionrates,butalsobuildsfoundationforfuzzyco
8、ntrol.Keywords:alternatingoxic-anoxic;SBR;shortcutnitrification-denitrification;rea-ltimecontrol[1]前文已經(jīng)研究了實(shí)現(xiàn)交替好氧P缺氧短程硝化反硝化生物脫氮工藝的方法與控制技術(shù),該方法不僅提高了處理效率、減少
