序批式生物膜反应器_SBBR_处理高氨氮渗滤液的脱氮机理研究_徐峥勇

第26卷第1期2006年1月环境科学学报ActaScientiaeCircumstantiaeVo.l26,No.1Jan.,2006徐峥勇,杨朝晖,曾光明,等.2006.序批式生物膜反应器(SBBR)处理高氨氮渗滤液的脱氮机理研究[J].环境科学学报,26(1):55-60XuZY,YangZH,ZengGM,etal.2006.Mechanismstudiesonthenitrogenremovalwhentreatingtheammonianitrogenrichleachatebysequencingbatchbiofilmreactor(SBBR)[J].ActaScientiaeCircumstantiae,26(1):55-60基金项目:国家自然科学基金资助项目(No.50478053);国家高技术资助项目(863)(No.2003AA644010);湖南省自然科学基金资助项目(No.04JJ3004,05JJ2004)作者简介:徐峥勇(1981—),男,硕士研究生,E-mail:zhyxu@msn.com;*通信作者(责任作者)Foundationitem:NationalNaturalScienceFoundationofChina(No.50478053);Hi-techResearchandDevelopmentprogramofchina(No.2003AA644010);NationalNaturalScienceFoundationofHunan(No.04JJ3004,05JJ2004)Biography:XUZhengyong(1981—),male,mastercandidate,E-mail:zhyxu@msn.com;*Correspondingauthor序批式生物膜反应器(SBBR)处理高氨氮渗滤液的脱氮机理研究徐峥勇,杨朝晖*,曾光明,肖勇,邓久华湖南大学环境科学与工程学院,长沙410082收稿日期:2005-07-13修回日期:2005-10-08录用日期:2005-10-31摘要:采用自主设计的SBBR反应器处理氨氮浓度含量较高的垃圾填埋场渗滤液并对其脱氮机理进行分析.在保持(32±0.4)℃的环境温度下,经过58d的驯化和33d的稳定,SBBR反应器的脱氮效率最高达到95%.实验结果表明,高频间歇式曝气方式在抑制了硝酸细菌的活性的同时也消除了亚硝酸盐浓度和pH大幅波动对亚硝酸细菌和厌氧氨氧化细菌活性的影响;在曝气阶段,溶解氧浓度被控制在1.2～1.4mgL-1,亚硝酸细菌成为主体细菌,亚硝酸盐积累;在缺氧阶段,随着溶解氧浓度迅速降低,厌氧氨氧化细菌成为优势菌种,曝气阶段积累的亚硝酸盐与氨氮同时被去除.关键词:垃圾渗滤液;SBBR;短程硝化;厌氧氨氧化文章编号:0253-2468(2006)01-0055-06中图分类号:X705文献标识码:AMechanismstudiesonthenitrogenremovalwhentreatingtheammonianitrogenrichleachatebysequencingbatchbiofilmreactor(SBBR)XUZhengyong,YANGZhaohui*,ZENGGuangming,XIAOYong,DENGJiuhuaCollegeofEnvironmentalScienceandEngineering,HunanUniversity,Changsha410082Received13July2005;receivedinrevisedform8October2005;accepted31October2005Abstract:Itwasstudiedandanalysedonthemechanismonthenitrogenremovalwhentreatingtheleachatewithhighconcentrationofammoniaandnitrogenbysequencingbatchbiofilmreactor(SBBR)designedindependently.Undertheambienttemperatureof(32±0.4)℃,andaftera58-day-longperiodofdomesticationanda33-day-longperiodofstability,theammonianitrogenremovalefficiencyreached95%intheSBBRreactor.Thewayofhighfrequencyintermittentaerationsuppressestheactivityofnitrobacteria,andalsoeliminatesthei