部分硝化-厌氧氨氧化工艺的影响因素及发展

Influencing Factors and Advances of Partial Nitritation-anammox Process

部分硝化-厌氧氨氧化工艺(Partial Nitritation-Anammox Process)是以厌氧氨氧化反应为核心的废水脱氮新技术,也是最为经济的生物脱氮途径之一。分别叙述了影响部分硝化工艺和厌氧氨氧化工艺的因素,包括p H值,溶解氧浓度,温度和基质浓度等,总结了部分硝化-厌氧氨氧化工艺中筛选富集氨氧化菌、加速厌氧氨氧化菌生长的条件,并建议今后应加强联合工艺影响因素的关联性研究、单个反应器最优运行参数研究、前置预处理的组合工艺的快速启动等方面的工作。

The partial nitritation-anammox process,an innovative nitrogen removal process of wasterwater which builds on anaerobic ammonium oxidition,is one of the most economical biological nitrogen removal ways. The factors affecting partial nitritation process and anammox process,including p H,dissolved oxygen concentration,temperature and substrates concentration, were discussed respectively. The technical essentials of the screening and enrichment of ammonium-oxidizing bacteria and the accelerating growth of anaerobic ammonium-oxidizing bacteria in partial nitritationanammox process were summarized. The strengthening of sequent studies was proposed,which were researching on the relationships between each influencing factors. The optimal operation parameters of a single reactor and quickly starting the partial nitritation-anammox process in combination with other pre-treatment processes were discussed.