厌氧氨氧化强化技术的研究进展

Progress in the research on the Anammox enhancement technique

厌氧氨氧化(Anammox)是一种环境友好的新型生物脱氮技术。但是,Anammox菌世代时间长、环境敏感度高,导致Anammox工艺启动周期过长,致使其工业化进程滞缓。一些强化技术可加快Anammox启动进程并提高其运行效能,促进Anammox研究在广度和深度上的发展。介绍了外加电场、磁场、超声波以及添加Fe元素、氧化石墨烯等Anammox工艺强化技术,从强化效果和可能的机理等方面对已取得的成果进行论述,并指出该强化技术未来的应用前景和研究方向。

Anaerobic ammonia oxidation （Anammox） is a novel and environmental-friendly denitrification technology. However, in view of the high environment sensitivity and long generation time of Anammox bacteria, the startingup period of Anammox is too long. As a result,its industrialization process is slowed down. Several enhancement techniques can speed up the starting-up process of Anammox, improve its operating efficiency, and promote the deve- lopment of Anammox research in both breadth and depth. The Anammox enhancement techniques,including applying electric field, magnetic field and ultrasound as well as adding iron element, the graphene oxide, etc. are introduced. The obtained achievements in the aspects of enhancement efficiency and possible mechanisms are reviewed. Moreover, the application prospects and research directions of these enhancement techniques in the future are pointed out.