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1、2第01345年卷第1月1期環(huán)境科學(xué)VOl_35.No.1Jan.,2014ENVIR0NMENTALSCIENCE同步脫氮除磷顆粒污泥硝化反硝化特性試驗研究劉小英,林慧,馬兆瑞,王磊,劉靜偉,郭超。,姜應(yīng)和(1.武漢理工大學(xué)土木工程與建筑學(xué)院,武漢430070;2.武漢市城市排水發(fā)展有限公司,武漢430060;3.武漢科技大學(xué)城市建設(shè)學(xué)院,武漢430065;4.武漢理_T大學(xué)城鎮(zhèn)供水與水污染控制技術(shù)研究中心,武漢430070)摘要:在厭氧/好氧交替運(yùn)行的SBR反應(yīng)器中,以成熟的脫氮除磷顆粒污泥為研究對象,對其硝化及反硝化特性進(jìn)行研究.結(jié)果表明,靜態(tài)試驗中顆
2、粒污泥的最大硝化速率為14.13mg·(g·h)~,最大反硝化速率為34.89mg·(g·h)~,最大缺氧吸磷反硝化速率為l3.11mg·(g·h)‘。,污泥具有較好的硝化、反硝化性能;反應(yīng)器中污泥最大硝化速率為4.60mg·(g·h)~,最大反硝化速率為1.43mg·(g·h);通過N的物料平衡得到,同步硝化反硝化反應(yīng)去除N約為232.5mg·d一,占N去除總量的54.3%;另外,顆粒污泥對P和N的去除率分別在95%和90%左右,反應(yīng)器具有較好的同步脫氮除磷效果.關(guān)鍵詞:顆粒污泥;硝化;反硝化;同步硝化反硝化;脫氮中圖分類號:X703.1文獻(xiàn)標(biāo)識碼:A文章
3、編號:0250—3301(2014)01—0214.07CharacteristicsofNitrificationandDenitrificationforSimultaneousNitrogenandPhosphorusRemovalbyGranularSludgeLIUXiaoying',LINHui,,MAZhao—rui,,WANGLei,LIUJingwei',GUOChao,JIANGYing—he'(1.SchoolofCivilEngineering&Architecture,WuhanUniversityofTechnology,Wuha
4、n430070,China;2.WuhanCityDrainageDevelopmentLimitedCompany,Wuhan430060,China;3.SchoolofUrbanConstruction,WuhanUniversityofScienceandTechnology,Wuhan430065,China;4.ResearchCenterofUrbanWaterSupplyandContaminatedWaterControlTechnology,WuhanUniversityofTechnology,Wuhan430070,China)Abs
5、tract:Inthealternatinganaerobic/aerobicSBRreactor,thenitrificationanddenitrificationcharacteristicsofsimultaneousnitrogenandphosphorusremovalbygranularsludgewerestudied.Theresultsofbatchexperimentsindicatedthatthemaximalnitrificationrate,denitrificationrate,anoxicphosphorusuptakean
6、ddenitrificationratewere14.13mg·(g。h)~,34.89mg。(g·h)~and13.11mg·(g·h)一,respectively.InSBR,themaximalnitrificationrateanddenitrificationratewere4.60mg·(gh)~and1.43mg·(g·h)~,respectively,whichwerelowerthanthoseinthebatchtest.Theamountofnitrogenremovalbythesimultaneousnitrificationand
7、denitrificationprocesswasapproximately232.5mg·d。。.whichwas54.3%ofthetotalnitrogenremova1.TheremovaleficiencyofNandPwasabout90%and95%.respectively.Thesimultaneousnitrogenandphosphorusremovalbygranularsludgeshowedhigheficiencyinnitrogenandphosphorusremova1.Keywords:granularsludge;nit
8、rification;denitrification