共包埋亚硝化-厌氧氨氧化-反硝化菌固定化处理氨氮废水的研究  

Treatment of Ammonia-Nitrogen Wastewater by Simultaneously Partial Nitrification,Anammox and Denitrification(SNAD) Process Using Co-Embedding Technology

作　　者：段秀梅 尹鑫 冷杰雯 刘欢 姜莉莉[1] 王立亮 DUAN Xiumei;YIN Xin;LENG Jiewen;LIU Huan;JIANG Lili;WANG Lilian(College of Chemistry and Environmental Engineering,Yingkou Institute of Technology,Yingkou 115000,China;School of Land,Resources and Environment,Jiangxi Agricultural University,Nanchang 330045,China)

机构地区：[1]营口理工学院化学与环境工程学院,辽宁营口115014 [2]江西农业大学国土资源与环境学院,江西南昌330045

出　　处：《水处理技术》2024年第8期110-114,共5页Technology of Water Treatment

基　　金：营口理工学院优秀科技人才支持计划项目(YBL201815)。

摘　　要：提供了一种通过亚硝化菌、厌氧氨氧化菌和反硝化菌的共固定化来获得同时短程硝化、厌氧氨氧化(anammox)和反硝化生物脱除氨氮的有效方法。通过批式实验确定了最佳溶解氧质量浓度(DO)为1.2 mg/L,短程硝化、厌氧氨氧化和反硝化生物量比例为1∶2∶1。在连续运行实验中,总氮(TN)负荷为1.5 g N/(L·d),TN最大去除负荷分别为1.44 g N/(L·d),COD去除率升高。扫描电子显微镜(SEM)显示,培养100 d后,微生物数量大幅增加。结果表明:共固定亚硝化、厌氧氨氧化和反硝化微生物处理氨氮废水是一条有效的方法,可以大大截留脱氮微生物,载菌凝胶体形成外部好氧和内部厌氧微环境,为短程硝化、厌氧氨氧化和反硝化过程提供反应空间。In this study,an effective strategy was provided to obtain simultaneous partial nitrification,anaerobic ammonia oxidation(anammox) and denitrification by co-immobilizing partial nitrifying,anammox and denitrifying biomass.The batch experiment was implemented and determined the optimal dissolved oxygen concentration(DO) of 1.2 mg/L with a biomass ratio of partial nitrifying,anammox and denitrifying biomass of 1:2:1.In the continuous experiment,the total nitrogen(TN) loading rate was 1.5 g N/(L·d),the maximum TN removal rate reached 1.44 g N/(L·d),and the COD removal rate increased.Scanning electron microscopy(SEM) showed microorganisms increased after 100 d of cultivation.The results showed that the co-immobilization of nitrification,anaerobic ammonium oxidation and denitrification microorganisms is an effective method for the treatment of ammonia nitrogen wastewater.This method can greatly prevent microorganisms from flushing out of the reactor.The external aerobic and internal anaerobic microenvironment provides a space for the shortcut nitrification,anaerobic ammonium oxidation and denitrification processes.

关 键 词：共固定化 亚硝化 厌氧氨氧化 反硝化 

分 类 号：X703.1[环境科学与工程—环境工程]