摘要
UASB反应器预处理高浓度NH4^＋-N废水，采用较低的C／N，降低后续处理的NH4^＋-N负荷．在反应器内部进行短程硝化与反硝化，经过75d的实验得出，反应器内的最佳控制条件：温度20—30℃，pH值7．0—8．0，C／N3．5～4．5．NH4^＋-N浓度在500mg／L左右，去除率达到40％，并且反应器运行稳定，可以作为对高浓度NH4^＋-N废水的预处理．
The pretreatment of high concentration NH4^＋-N wastewater was carried out by UASB reactor and a lower C/N was used to reduce the NH4^＋-N load of the follow-up treatment. By using shortcut nitrification-denitrification in the reactor for 75 d experimental cycles,the best control condition of reactor were obtained as follows ：temperature was 20-30 ℃ ;pH was 7.0-8.0;C/N was 3.5-4.5;the concentration of NH4^＋-N was about 500 mg/L. The removal rate attained 40%. Running steadily,the reactor could be used as the pretreatment of high concentration NH4 -N wastewater.
出处
《内蒙古科技大学学报》
CAS
2010年第1期69-72,共4页
Journal of Inner Mongolia University of Science and Technology
