抄録
The effect of NO-2-N on the denitrification by N-1 strain at different temperatures was investigated.
The additional dosage of NO-2-N in the course of denitrification gave no effect on the removal rate of NO-3-N. When NO2-N was contained in medium, the denitrification was greatly inhibited at 5°C, but it was not heavily inhibited at 10°C. Aerobic growth of N-1 strain was inhibited by 2 mM NO-2-N at 5°C, while 7 mM NO-2-N gave no effect at 10°C. The results of the denitrification using the resting cells indicated that N-1 strain produced unknown factors which stimulated the denitrification in the filtrate of anaerobic culture solution.
