城市污水主流亚硝化-厌氧氨氧化的关键影响因素综述

Review on key Influencing Factors of Nitrosation-Anaerobic Ammonium Oxidation of Urban Sewage Mainstream

与传统生物脱氮工艺相比,亚硝化-厌氧氨氧化工艺能节省62.5%曝气量、50%碱度、100%碳源以及90%剩余污泥量,已在垃圾渗滤液、污泥消化液、工业废水等侧流高氨氮废水处理中取得较好效果,被公认为是最具节能降耗潜能的脱氮工艺之一。然而,在用于低氨氮城市污水主流处理方面,受低水温、低氨氮浓度以及有机物等方面的影响,工艺脱氮效率及其稳定性受到很大制约。本文综述了城市污水亚硝化-厌氧氨氧化的关键影响因素,以推进城市污水处理。

Compared with the traditional biological nitrogen removal process,the nitrosation-anaerobic ammonium oxidation process can save 62.5% aeration,50% alkalinity,100% carbon source and 90% excess sludge,which has achieved good results in the treatment of side stream high ammonia nitrogen sewage,such as garbage leachate,sludge digestion liquid,industrial sewage,etc.,and is recognized as one of the denitrification processes with the most energy saving and consumption reducing potential.However,in terms of mainstream treatment of low ammonia nitrogen urban sewage,due to the influence of low water temperature,low ammonia nitrogen concentration and organic matter,the process nitrogen removal efficiency and stability are greatly restricted.In this paper,the key influencing factors of nitrosation-anaerobic ammonium oxidation of urban sewage are summarized to promote urban sewage treatment.