序批式反应器中同步氨氮厌氧氧化和反硝化（SAD）工艺的性能和微生物群落。
Performance and microbial community of simultaneous anammox and denitrification (SAD) process in a sequencing batch reactor.
机构信息
School of Environmental Science and Engineering, Qingdao University, Qingdao 266071, China.
Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-environmental Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100085, China.
出版信息
Bioresour Technol. 2016 Oct;218:1064-72. doi: 10.1016/j.biortech.2016.07.081. Epub 2016 Jul 21.
A sequencing batch reactor (SBR) was used to test the simultaneous anammox and denitrification process. Optimal nitrogen removal was achieved with chemical oxygen demand (COD) of 150mg/L, during which almost all of ammonia, nitrite and nitrate could be removed. Organic matter was a key factor to regulate the synergy of anammox and denitrification. Both experimental ΔNO2(-)-N/ΔNH4(+)-N and ΔNO3(-)-N/ΔNH4(+)-N values deviated from their theoretical values with increasing COD. Denitrifying bacteria exhibited good diversity and abundance, but the diversity of anammox bacteria was less abundant. Brocadia sinica was able to grow in the presence of organic matter and tolerate high nitrite concentration. Anammox bacteria were predominant at low COD contents, while denitrifying bacteria dominated the microbial community at high COD contents. Anammox and denitrifying bacteria could coexist in one reactor to achieve the simultaneous carbon and nitrogen removal through the synergy of anammox and denitrification.
采用序批式反应器（SBR）对同时进行的厌氧氨氧化和反硝化过程进行了测试。在化学需氧量（COD）为 150mg/L 时，可实现最佳的氮去除效果，在此期间，几乎所有的氨、亚硝酸盐和硝酸盐都可以被去除。有机物是调节厌氧氨氧化和反硝化协同作用的关键因素。随着 COD 的增加，实验ΔNO2(-)-N/ΔNH4(+)-N 和 ΔNO3(-)-N/ΔNH4(+)-N 值均偏离其理论值。反硝化细菌表现出良好的多样性和丰度，但厌氧氨氧化细菌的多样性则较少。Brocadia sinica 能够在有机物存在的情况下生长，并耐受高浓度的亚硝酸盐。在低 COD 含量下，厌氧氨氧化菌占优势，而在高 COD 含量下，反硝化菌则主导着微生物群落。通过厌氧氨氧化和反硝化的协同作用，厌氧氨氧化菌和反硝化菌可以在一个反应器中共同存在，从而实现同时去除碳和氮。
Zotero 插件