海绵铁在脱氮和除磷中的研究进展

Application and prospect of sponge iron in nitrogen and phosphorus removal

对海绵铁的功能及在水处理中的应用进行了概述。分析了海绵铁脱氮和除磷的机理,并对影响海绵铁脱氮和除磷的因素(海绵铁投加量、pH、DO、温度)进行了阐述。总结了海绵铁在脱氮和除磷中的应用(人工湿地、生物膜法、厌氧氨氧化、生物海绵铁体系),对未来海绵铁与脱氮除磷的相关研究方向进行了展望。

This paper summarizes the function of sponge iron and its application in water treatment.The mechanism of nitrogen and phosphorus removal by sponge iron is analyzed,and the factors affecting nitrogen and phosphorus removal by sponge iron(dosage of sponge iron,pH,DO,temperature)are described.The application of sponge iron in nitrogen and phosphorus removal(constructed wetland,biofilm process,anaerobic ammonia oxidation,biological sponge iron system)is summarized,and the research direction of sponge iron and nitrogen and phosphorus removal in the future is prospected.