School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, PR China.
School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, PR China.
Bioresour Technol. 2018 May;255:198-204. doi: 10.1016/j.biortech.2018.01.115. Epub 2018 Feb 6.
A novel IBAF system (altered conventional biological aerated filter (BAF) for intermittent aeration) was used to treat BDD anodes electrochemical oxidation gasification wastewater effluent, after which 454 pyrosequencing was applied to investigate the bacterial community of IBAF and demonstrate the relationship between dissolved oxygen (DO) and the bacterial community. The results showed that the concentration of COD, NH-N and NO-N reached 55.08, 7.64 and 7.76 mg/L, respectively, in IBAF effluent because of changes in the DO concentration at 30 days after system start-up. The bacterial community results revealed that the 40 cm sample had the highest bacterial diversity. The bacterial species were approximate in total samples at phylum and family level, but the relative abundance was significantly different because of change in DO concentration. In addition, sample distance analysis indicated that the similarity of different samples was related to the DO concentration at different heights.
一种新型 IBAF 系统（间歇曝气生物曝气滤池（BAF）的改良）被用于处理 BDD 阳极电化学氧化气化废水出水，之后采用 454 焦磷酸测序技术研究了 IBAF 的细菌群落，并证明了溶解氧（DO）与细菌群落之间的关系。结果表明，由于系统启动 30 天后 DO 浓度的变化，IBAF 出水中的 COD、NH-N 和 NO-N 浓度分别达到 55.08、7.64 和 7.76mg/L。细菌群落结果表明，40cm 样品具有最高的细菌多样性。在门和科水平上，总样品中的细菌种类相近，但由于 DO 浓度的变化，相对丰度差异显著。此外，样品距离分析表明，不同样品的相似性与不同高度的 DO 浓度有关。
