Biotransformation of nitrogen- and sulfur-containing pollutants during coking wastewater treatment: Correspondence of performance to microbial community functional structure
文献类型：期刊论文
| 作者 | Joshi, Dev Raj; Zhang, Yu; Gao, Yinxin; Liu, Yuan; Yang, Min |
| 刊名 | WATER RESEARCH
 |
| 出版日期 | 2017-09-15 |
| 卷号 | 121期号:0页码:338-348 |
| 关键词 | Coking Wastewater Nitrogen And Sulfur Containing Organic Compound Functional Gene Taxa-function Relationship Microbial Network |
| 英文摘要 | Although coking wastewater is generally considered to contain high concentration of nitrogen-and sulfur-containing pollutants, the biotransformation processes of these compounds have not been well understood. Herein, a high throughput functional gene array (GeoChip 5.0) in combination with Illumina MiSeq sequencing of the 16S rRNA gene were used to identify microbial functional traits and their role in biotransformation of nitrogen-and sulfur-containing compounds in a bench-scale aerobic coking wastewater treatment system operated for 488 days. Biotransformation of nitrogen and sulfur-containing pollutants deteriorated when pH of the bioreactor was increased to > 8.0, and the microbial community functional structure was significantly associated with pH (Mantels test, P < 0.05). The release of ammonia nitrogen and sulfate was correlated with both the taxonomic and functional microbial community structure (P < 0.05). Considering the abundance and correlation with the release of ammonia nitrogen and sulfate, aromatic dioxygenases (e.g. xylXY, nagG), nitrilases (e.g. nhh, nitrilase), dibenzothiophene oxidase (DbtAc), and thiocyanate hydrolase (scnABC) were important functional genes for biotransformation of nitrogen-and sulfur-containing pollutants. Functional characterization of taxa and network analysis suggested that Burkholderiales, Actinomycetales, Rhizobiales, Pseudomonadales, and Hydrogenophiliales (Thiobacillus) were key functional taxa. Variance partitioning analysis showed that pH and influent ammonia nitrogen jointly explained 25.9% and 35.5% of variation in organic pollutant degrading genes and microbial community structure, respectively. This study revealed a linkage between microbial community functional structure and the likely biotransformation of nitrogen-and sulfurcontaining pollutants, along with a suitable range of pH (7.0-7.5) for stability of the biological system treating coking wastewater. (C) 2017 Elsevier Ltd. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/39478]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Joshi, Dev Raj,Zhang, Yu,Gao, Yinxin,et al. Biotransformation of nitrogen- and sulfur-containing pollutants during coking wastewater treatment: Correspondence of performance to microbial community functional structure[J]. WATER RESEARCH,2017,121(0):338-348. |
| APA | Joshi, Dev Raj,Zhang, Yu,Gao, Yinxin,Liu, Yuan,&Yang, Min.(2017).Biotransformation of nitrogen- and sulfur-containing pollutants during coking wastewater treatment: Correspondence of performance to microbial community functional structure.WATER RESEARCH,121(0),338-348. |
| MLA | Joshi, Dev Raj,et al."Biotransformation of nitrogen- and sulfur-containing pollutants during coking wastewater treatment: Correspondence of performance to microbial community functional structure".WATER RESEARCH 121.0(2017):338-348. |
入库方式： OAI收割
来源：生态环境研究中心
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