回流比对两段式缺氧/好氧与 MBR 处理渗滤液的影响：性能和微生物群落结构。
Influence of reflux ratio on two-stage anoxic/oxic with MBR for leachate treatment: Performance and microbial community structure.
机构信息
College of Environmental Science and Engineering, Hunan University, Changsha 410082, China.
Department of Urban Water Environmental Research, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
出版信息
Bioresour Technol. 2018 May;256:69-76. doi: 10.1016/j.biortech.2018.01.146. Epub 2018 Feb 2.
A lab-scale two-stage Anoxic/Oxic with MBR (AO/AO-MBR) system was operated for 81 days for leachate treatment with different reflux ratio (R). The best system performances were observed with a R value of 150%, and the average removal efficiencies of chemical oxygen demand, ammonia and total nitrogen were 85.6%, 99.1%, and 77.6%, respectively. The microbial community were monitored and evaluated using high-throughput sequencing. Proteobacteria were dominant in all process. Phylogenetic trees were described at species level, genus Thiopseudomonas, Amaricoccus, Nitrosomonas and Nitrobacter played significant roles in nitrogen removal. Co-occurrence analyzing top 20 genera showed that Nitrosomonas-Nitrobacter presented perfect positive relationship, as well as Paracoccus-Brevundimonas and Pusillimonas-Halobacteriovorax.
采用实验室规模两级缺氧/好氧与膜生物反应器（AO/AO-MBR）系统，以不同回流比（R）运行 81 天来处理渗滤液。当 R 值为 150%时，观察到最佳的系统性能，化学需氧量、氨和总氮的平均去除效率分别为 85.6%、99.1%和 77.6%。使用高通量测序监测和评估微生物群落。在所有过程中，变形菌门都是优势菌门。系统发育树在物种水平上进行了描述，硫假单胞菌属、阿玛瑞球菌属、亚硝化单胞菌属和硝化杆菌属在氮去除中发挥了重要作用。前 20 个属的共现分析表明，亚硝化单胞菌属-硝化杆菌属呈完美的正相关关系，副球菌属-短小杆菌属和普西利蒙斯菌属-盐杆菌属也是如此。
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