在处理城市污水的厌氧-多级厌氧/好氧（A-MAO）工艺中生物营养素去除和分子生物学特性。
Biological nutrient removal and molecular biological characteristics in an anaerobic-multistage anaerobic/oxic (A-MAO) process to treat municipal wastewater.
机构信息
School of Civil and Environmental Engineering, Harbin Institute of Technology Shenzhen Graduate School, Shenzhen 518055, China.
School of Civil and Environmental Engineering, Harbin Institute of Technology Shenzhen Graduate School, Shenzhen 518055, China; Shenzhen Key Laboratory of Water Resource Utilization and Environmental Pollution Control, Shenzhen 518055, China.
出版信息
Bioresour Technol. 2017 Oct;241:969-978. doi: 10.1016/j.biortech.2017.05.161. Epub 2017 May 29.
This study aimed to present an anaerobic-multistage anaerobic/oxic (A-MAO) process to treat municipal wastewater. The average COD, NH-N, TN, and TP removal efficiency were 91.81%, 96.26%, 83.73% and 94.49%, respectively. Temperature plunge and C/N decrease have a certain impact on the modified process. Characteristics of microbial community, function microorganism, and correlation of microbial community with environmental variables in five compartments were carried out by Illumina Miseq high-throughput sequencing. The differences of microbial community were observed and Blastocatella, Flavobacterium and Pseudomonas were the dominant genus. Nitrosomonas and Nitrospira occupied a dominant position in AOB and NOB, respectively. Rhodospirillaceae and Rhodocyclaceae owned a considerable proportion in phosphorus removal bacteria. DO and COD played significant roles on affecting the microbial components. The A-MAO process in this study demonstrated a high potential for nutrient removal from municipal wastewater.
本研究旨在提出一种厌氧-多级厌氧/好氧（A-MAO）工艺来处理城市污水。平均 COD、NH3-N、TN 和 TP 的去除效率分别为 91.81%、96.26%、83.73%和 94.49%。温度骤降和 C/N 降低对改良工艺有一定影响。通过 Illumina Miseq 高通量测序，对五个隔室中的微生物群落特征、功能微生物以及微生物群落与环境变量的相关性进行了研究。观察到微生物群落的差异，芽单胞菌属、黄杆菌属和假单胞菌属是优势属。亚硝化单胞菌属和硝化螺旋菌属分别在 AOB 和 NOB 中占据主导地位。聚磷菌中红螺菌科和红环菌科占有相当大的比例。DO 和 COD 对影响微生物组成起着重要作用。本研究中的 A-MAO 工艺显示出从城市废水中去除营养物质的高潜力。
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