資源描述:
《溫度對水解反硝化脫氮的影響_熊婭.pdf》由會員上傳分享,免費(fèi)在線閱讀,更多相關(guān)內(nèi)容在行業(yè)資料-天天文庫。
1、第36卷第4期土木建筑與環(huán)境工程Vol.36No.42014年8月JournalofCivil,Architectural&EnvironmentalEngineeringAug.2014doi:10.11835/j.issn.1674-4764.2014.04.018溫度對水解反硝化脫氮的影響熊婭1,2,賈立敏3,張煥禎1,王敏3,宋英豪3(1.中國地質(zhì)大學(xué)水資源與環(huán)境學(xué)院,北京100083;2.北京市環(huán)境保護(hù)科學(xué)研究院,北京100037;3.北京化工大學(xué)工程技術(shù)研究院,北京100029)摘要:采用水解反硝化脫氮工藝,將水解酸化與反硝化脫氮過程相結(jié)合,取
2、代缺氧反硝化,解決城鎮(zhèn)污水冬季脫氮效果差的問題。在水解反硝化工藝的中試系統(tǒng)中,氨氮和總氮的去除效果受溫度的影響較小,冬季和夏季氨氮去除率分別達(dá)到98.3%和98.4%,總氮去除率分別為65.2%和68.0%。以水解反硝化污泥與AAO工藝中的缺氧池污泥為研究對象,對比分析溫度對兩種污泥比反硝化速率和耗碳率的影響。結(jié)果顯示:溫度對水解池污泥的影響顯著小于缺氧池污泥,在25、30℃兩者反硝化速率相當(dāng),但是當(dāng)溫度為8、15和20℃下,水解池污泥的最大比反硝化脫氮速率分別為缺氧池污泥的1.7倍、1.3倍和1.4倍;同時(shí),在各溫度條件下,水解池污泥的耗碳率基本為缺氧池
3、污泥的51.2%~81.7%。關(guān)鍵詞:水解;反硝化;低溫;反硝化速率;耗碳率中圖分類號:X703.1文獻(xiàn)標(biāo)志碼:A文章編號:1674-4764(2014)04-0109-06EffectofTemperatureonHydrolysis-DenitrificationProcess1,2,JiaLimin3,ZhangHuanzhen1,WangMin3,SongYinghao3*XiongYa(1.SchoolofWaterResource&Environment,ChinaUniversityofGeosciences,Beijing100083,P.
4、R.China;2.BeijingMunicipalResearchInstituteofEnvironmentalProtection,Beijing100037,P.R.China;3.HighTechnologyResearchInstituteofBeijingUniversityofChemicalTechnology,Beijing100029,P.R.China)Abstract:Tosolvetheproblemofpoornitrogenremovalcapacityinwinter,thehydrolysis-denitrificati
5、onprocesscombininghydrolyticacidificationanddenitrificationprocesswithinsinglereactorwasinducedtotreatmunicipalwastewater.Thepilottestshowedthattheaverageremovalratesofammonianitrogenofhydrolysis-denitrificationprocesswere98.3%and98.4%inwinterandsummer,respectively.Andtheaveragere
6、movalratesoftotalnitrogenwere65.2%and68.0%,respectively.Accordingtothenitrogenremovalofpilottest,theactivatedsludgeinhydrolysis-denitrificationprocessandAAOprocesswerestudiedtoinvestigatetheeffectoftemperatureonspecificdenitrificationrateandcarbonsourceconsumptionrate.Itisfoundtha
7、tthetemperatureonactivatedsludgeinhydrolysis-denitrificationprocesshadsmallereffectsthanthatinAAOprocess.Inthetwocases,namelythetemperatureare25℃,30℃,respectively,bothdenitrificationratesofthemwassimilar.However,whenthetemperaturewere8℃、15℃and20℃,thespecificdenitrificationrateofhy
8、drolysis-denitrificationsludgewas