pH值、温度对反硝化的影响  

THE INFLUENCE OF PH VALUES AND TEMPERATURE ON DENITRIFICATION

作　　者：徐亚同[1] 

机构地区：[1]华东师范大学环境科学系

出　　处：《中国环境科学》1994年第4期308-313,共6页China Environmental Science

摘　　要：在悬浮污泥系统中，当以挥发性脂肪酸为碳源时，适宜的ｐＨ值是７．５。当ｐＨ偏离这一适宜值时，反硝化速率逐渐降低，亚硝酸盐出现累积。经驯化后，氮去除率会有所改善。随着温度的上升，反硝化速率会平行地提高，温度常数Ｋｔ值是０．０３（１０～３０℃）。本文还讨论了亚硝酸盐积累的原因和避免的方法。n the suspended sludge system, when VFA were used as carbon source, the optimal PH was equal to 7.5 and when the PH values were diverted.denitrification rates decreased gradually and nitrite accumulation was observed. Afler acclimation, denitrification rate would be improved. As temperature, increased denitrification rate increased parallelly, K_t constant equal to 0.03 (10℃￣30℃).The reasons of nitrite accumulation and its prevention method had been discussed.

关 键 词：生物反硝化 亚硝酸盐 温度 PH值 废水处理 

分 类 号：X703[环境科学与工程—环境工程]