为去除臭氧氧化脱硝废水中高浓度硝酸盐，通过固定床试验探究了流量、铁碳比、温度、反应柱倾斜角度以及沸石填充量对脱硝废水的处理效果。结果表明，较低的出水流量有利于硝酸盐的去除；铁碳混合颗粒通过形成原电池能有效提高硝酸盐去除率，最佳铁碳比为2∶1；温度和沸石量的变化都不会显著影响硝酸盐去除效果；反应柱垂直放置有利于提高去除率。

In order to remove high concentration of nitrates in wastewater from ozone oxidation denitrification, the removal efficiency of flow, iron-carbon ratio, temperature, column inclination angle and zeolite filling amount on the treatment effect of denitration wastewater are studied through fixed bed experiments. It is shown that lower effluent flow is beneficial to the removal of nitrates. The mixing of iron and activated carbon particles can form galvanic cell to improve effectively the removal rate of nitrates, for which the optimal volume ratio of iron to carbon is 2∶1. Changes in temperature and zeolite filling amount will not significantly affect the removal of nitrates. The vertical placement of reaction column is beneficial to improve the removal rate.

刘栋(1996-),男,硕士研究生,研究方向为脱硝废水处理技术,laud223@163.com