亚硫酸盐去除硝基氧化剂废水中的亚硝酸盐

Remove Nitrite in Nitro-oxidizer Waste Water with Sulphite

研究了用亚硫酸盐将亚硝酸盐还原为氮气 ,消除了污染 ,并探索了 p H<3、p H=6～ 7、p H>1 2条件下亚硝酸盐降解率的变化及不同亚硝酸盐与亚硫酸盐的初始浓度比对降解率的影响 ,得出了最佳反应条件为 p H=2 ,亚硫酸盐与亚硝酸盐的最佳投料比为 1 .5 :1 ,使用该法处理硝基氧化剂废水的初始浓度最好在 80 0 mg/L

Sulphite reduction of nitrite in waste water of nitro oxidizer in was investigated to nitrogen, The degradation ratio under the condition of pH<3、pH=6~7、pH>12, the influences of various ratio of the nitrite concentration to the sulphite concentration on degradation ratio, were investigated, the optimum reaction condition was pH=2, the ratio of sulphite concentration to nitrite concentration was 1.5:1 and the appropriate initial nitrite concentration was below 800 mg/L for best result.