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1、第32卷第3期環(huán)境科學(xué)學(xué)報(bào)V01.32.No.32012年3月ActaScientiaeCircumstantiaeMar..2O12蘭善紅,武秀文,藍(lán)惠霞。2012.pH沖擊對(duì)降解五氯酚(PCP)微氧顆粒污泥產(chǎn)氣及代謝能力的影響[J].環(huán)境科學(xué)學(xué)報(bào),32(3):595.599LanSH,WuXW,LanHX.2012.EffectofpHshockongasproductionandmetabolismperformanceofmicroaerobicgranularsludgeforPCPdegradatio
2、n[J].ActaScientiaeCircumstantiae,32(3):595—599pH沖擊對(duì)降解五氯酚(PCP)微氧顆粒污泥產(chǎn)氣及代謝能力的影響蘭善紅,武秀文,藍(lán)惠霞1東莞理工學(xué)院化學(xué)與環(huán)境工程學(xué)院,東莞5238082.青島科技大學(xué)環(huán)境與安全S-程學(xué)院,青島266042收稿日期:2011—05·25修回日期:2011—08.08錄用日期:2011.08.12摘要:分別在pH為6.0和9.0的沖擊條件下,對(duì)降解五氯酚(PCP)微氧顆粒污泥系統(tǒng)的產(chǎn)氣及代謝能力進(jìn)行了研究.結(jié)果發(fā)現(xiàn),在pH=6.0的條件下沖擊
3、8d,污泥系統(tǒng)的產(chǎn)氣量降至400mL·d以下,甲烷含量為0.而后將pH調(diào)至7.0并經(jīng)過6d的恢復(fù)實(shí)驗(yàn),產(chǎn)氣情況基本恢復(fù)正常.而在pH=9.0的沖擊下,污泥系統(tǒng)的產(chǎn)氣量及甲烷含量急劇下降至0,經(jīng)過6d的恢復(fù)過程仍然沒有達(dá)到正常水平.在不同pH沖擊的第8d,對(duì)PCP和COD去除率及脫氯中間產(chǎn)物進(jìn)行了研究,結(jié)果表明,PCP及COD降解率均在較低的水平,且發(fā)生了PCP及其脫氯中間產(chǎn)物的嚴(yán)重積累.與pH=9.0相比,pH=6.0的沖擊對(duì)系統(tǒng)代謝的影響要小得多.關(guān)鍵詞:pH沖擊;五氯酚(PCP);微氧顆粒污泥;產(chǎn)氣;代謝文章
4、編號(hào):0253-2468(2012)03—595—05中圖分類號(hào):X703文獻(xiàn)標(biāo)識(shí)碼:AEffectofpHshockongasproductionandmetabolismperformanceofmicroaerobicgranularsludgeforPCPdegradationLANShanhong一,WUXiuwen,LANHuixia1.CollegeofChemist~andEnvironmentalEngineering,DongguanUniversityofTechnology,Donggua
5、n5238082.CollegeofEnvironmentandSafeEngineering,QingdaoUniversityofScienceandTechnology,Qingdao266042Received25May2011;receivedinrevisedform8August2011:accepted12August2011Abstract:GasproductionandmetabolicperformanceofmicroaerobicgranularsludgesystemforPCPde
6、gradationwerestudiedundertheshockofpH6.0and9.0,respectively.AtpH6.0,witheightdaysofshock,thegasproductionratewaslowerthan400mL·d‘。,andthemethanecontentdecreasedtozero.Thenthesystemrecoveryexperimentwasca~iedoutbyadjustingpHto7.0,andaftersixdaysofrecovery,thes
7、ystemoperatednormally.WhileatpH9.0,boththegasproductionrateandthemethanecontentsharplydecreasedtozeroandthesystemwasunabletorecoveraftersixdays.TheremovalefficienciesofPCPandCODaswellasthedechlorinatedintermediateswerestudiedonthe8dayofpHshock.Theresultsshowe
8、dthattheremovalefficienciesofPCPandCODwerebothlowandtheaccumulationofdechlorinatedintermediateswashigh.ComparingtopH9.0.theeffectonthemetabolismofthesystemismuchlessthanthatatpH60.Keyword