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《同步脱氮除磷颗粒污泥硝化反硝化特性试验研究-论文.pdf》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、2第01345年卷第1月1期环境科学VOl_35.No.1Jan.,2014ENVIR0NMENTALSCIENCE同步脱氮除磷颗粒污泥硝化反硝化特性试验研究刘小英,林慧,马兆瑞,王磊,刘静伟,郭超。,姜应和(1.武汉理工大学土木工程与建筑学院,武汉430070;2.武汉市城市排水发展有限公司,武汉430060;3.武汉科技大学城市建设学院,武汉430065;4.武汉理_T大学城镇供水与水污染控制技术研究中心,武汉430070)摘要:在厌氧/好氧交替运行的SBR反应器中,以成熟的脱氮除磷颗粒污泥为研究对象,对其硝化及反硝化特性进行研究.结果表明,静态试验中颗
2、粒污泥的最大硝化速率为14.13mg·(g·h)~,最大反硝化速率为34.89mg·(g·h)~,最大缺氧吸磷反硝化速率为l3.11mg·(g·h)‘。,污泥具有较好的硝化、反硝化性能;反应器中污泥最大硝化速率为4.60mg·(g·h)~,最大反硝化速率为1.43mg·(g·h);通过N的物料平衡得到,同步硝化反硝化反应去除N约为232.5mg·d一,占N去除总量的54.3%;另外,颗粒污泥对P和N的去除率分别在95%和90%左右,反应器具有较好的同步脱氮除磷效果.关键词:颗粒污泥;硝化;反硝化;同步硝化反硝化;脱氮中图分类号:X703.1文献标识码:A文章
3、编号: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
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