Abstract:Influence of nitration product on the preservation characteristics of mixed nitrifying culture was studied. Nitrite could decrease the decay rate of nitrifying activity, and also improve the other characteristics during the starvation period. Under the anaerobic conditions of 4℃ with 5mmol/L nitrite, 4℃ with 5mmol/L nitrate and 4℃, the decay rate of nitrifying activity was 0.010/d, 0.020/d and 0.021/d, and the half-life was 72.3, 33.9 and 32.7d, respectively. After 5months’ preservation, the relative activity survival and relative biomass survival were 18.7%, 19.1%, 15.1%, and 62.0%, 47.3%, 58.7%, respectively. With storage time prolonging and the activity decayed, the heme c and ATP contents decreased, and the mixed nitrifying culture changed to black gradually.
汪彩华, 郑平, 胡安辉. 硝化产物对硝化细菌混培物保藏特性的影响[J]. 中国环境科学, 2011, 31(10): 1663-1668.
WANG Cai-Hua, ZHENG Ping, HU An-Hui. Influence of nitration product on the preservation characteristics of mixed nitrifying culture. CHINA ENVIRONMENTAL SCIENCECE, 2011, 31(10): 1663-1668.