两株好氧反硝化细菌GA菌和GP菌共培养体系中碳氮去除的协同作用
Synergy of carbon and nitrogen removal of a co-culture of two aerobic denitrifying bacterial strains, sp. GA and sp. GP.
作者信息
Guo Yan, Yang Ruili, Zhang Zhaoji, Wang Xiaojun, Ye Xin, Chen Shaohua
机构信息
CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences 1799 Jimei Road Xiamen 361021 People's Republic of China
University of Chinese Academy of Sciences Beijing 100049 People's Republic of China.
出版信息
RSC Adv. 2018 Jun 13;8(38):21558-21565. doi: 10.1039/c8ra02721h. eCollection 2018 Jun 8.
Two newly isolated aerobic denitrifying bacterial strains ( sp. GA and sp. GP) were co-cultured to investigate the synergy of carbon and nitrogen removal of different functional bacteria. The co-culture showed higher efficiency for removing total organic carbon (TOC) and total dissolved nitrogen (TDN) than strain GA or GP cultured separately. The inoculation ratio of 50 (strain GA/GP) was advantageous for the TOC and TDN removal efficiencies of the co-culture. The sequential co-culture tests showed that strain GP being inoculated after strain GA was inoculated for 36 h increased the TDN removal efficiency from 53.3% to 86.8%. This finding indicated that the activity of strain GA was important in the co-culture system, and the sequential co-culture could be advantageous to the synergistic effect of strains GA and GP. The co-culture of different functional bacteria can be an alternative method for improving the performance of aerobic denitrifying microorganisms for pollutant removal.
将两株新分离的好氧反硝化细菌菌株（GA菌和GP菌）进行共培养，以研究不同功能细菌在碳氮去除方面的协同作用。与单独培养的GA菌或GP菌相比，共培养对总有机碳（TOC）和总溶解氮（TDN）的去除效率更高。50（GA菌/GP菌）的接种比例有利于共培养对TOC和TDN的去除效率。顺序共培养试验表明，在GA菌接种36小时后接种GP菌，可使TDN去除效率从53.3%提高到86.8%。这一发现表明，GA菌的活性在共培养系统中很重要，顺序共培养可能有利于GA菌和GP菌的协同作用。不同功能细菌的共培养可以作为提高好氧反硝化微生物去除污染物性能的一种替代方法。
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