摘要
厌氧氨氧化反应(Anammax)功能菌世代时间长,生长条件苛刻,在有机物存在的条件下,反应过程和脱氮效果极易受到影响。因此,如何降低有机物对厌氧氨氧化菌(AAOB)活性的影响,是其应用的难点。近年来,研究者在有机物对Anammox反应影响方面开展了大量研究,本文主要综述了有机物的浓度和种类对AAOB活性的影响,并建议控制低浓度有机物环境下(100~200 mg/L以下),可降低有机物对AAOB活性的抑制;同时,可调控不同种类和浓度有机物的异位利用,形成Anammox-反硝化协同作用、Anammox-甲烷化-反硝化耦合作用等实现同步脱碳除氮。最后认为,在有机物对Anammox的影响方面,还可进一步开展AAOB的新陈代谢机制、与其他菌种的竞争合作机理以及耦合作用下菌种富集纯化等方面的研究。
Anammox bacteria has a long generation time and is susceptible to the environmental conditions. Organic substrate concentration has significant impact on the anammox process and the denitrification effect. Therefore, how to reduce the effect of organic matter on the activity of anammox is a difficulty in its application. In this paper, effect of organic matter （type and concentration） on the process of anammox is introduced, and research progress in influencing factors of anaerobic ammonium oxidizing is summarized. It suggested that under the organic matter concentration of 100 -200 mg/L, the activity of anammox bacteria is not inhibited. At the same time, regulating the ectopic utilization of different types and concentrations of organic compounds can help to achieve the purpose of removing carbon and nitrogen with the synchronization of the anammox, methaogenesis or denitrification. It concluded that further researches on metabolic mechanism of anammox bacteria, the competition and cooperation mechanism with other microorganisms, as well as the enrichment and purification of the bacteria under coupling effect should be carried out.
作者
汪瑶琪
喻徐良
陈重军
徐乐中
沈耀良
Wang Yaoqi Yu Xuliang Chen Chongjun Xu Yuezhong Shen Yaoliang(School of Environmental Science and Engineering, Suzhou University of Science and Technology ＇Jiangsu Key Laboratory of Environmental Science and Engineerin Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou 215009)
出处
《化学通报》
CAS
CSCD
北大核心
2017年第2期173-178,共6页
Chemistry
基金
国家自然科学基金项目(51508366)
江苏省高校自然科学基金面上项目(14KJB610008)
苏州市科技计划项目(SS201501)资助
