反硝化滤池深度脱氮处理影响因素研究进展

Study on Influencing Factors of Denitrification in Denitrification Filter

反硝化滤池作为污水尾水深度处理装置,可较好地除污水水中TN,提高出水水质。本文综述了反硝化滤池运行中影响脱氮效果的因素,包括碳源、滤料、C/N、HRT等,实现污水厂的二级出水进行深度处理,进一步去除前处理中残留的TN,使出水达标排放,并指出了反硝化过滤器今后的研究方向。

With the improvement of national sewage discharge standards, it is particularly important to further remove TN in water and improve the effluent quality.As a new process, denitrification filter has become a necessary treatment procedure for major sewage plants to carry out deep denitrification treatment for secondary effluent of sewage plants, further remove pollutants that are difficult to be removed in the pretreatment, and make effluent discharge up to the standard. In this paper, the factors that affect the denitrification effect in the operation of denitrifying filter, such as carbon source, filter material, C/N, HRT, etc. are reviewed,and the research direction of denitrifying filter in the future is pointed out.