GeoChip-based analysis of the microbial community functional structures in simultaneous desulfurization and denitrification process
文献类型：期刊论文
| 作者 | Liu, Wenzong
|
| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
 |
| 出版日期 | 2014 |
| 卷号 | 26期号:7页码:1375-1382 |
| 关键词 | Expanded granular sludge bed Elemental sulfur recovery Microbial community Functional gene array |
| ISSN号 | 1001-0742 |
| 中文摘要 | The elemental sulfur (S-0) recovery was evaluated in the presence of nitrate in two development models of simultaneous desulfurization and denittification (SDD) process. At the loading rates of 0.9 kg S/(m(3).clay) for sulfide and 0.4 kg N/(m(3).day) for nitrate, S-0 conversion rate was 91.1% in denitrifying sulfide removal (DSR) model which was higher than in integrated simultaneous desulfurization and denitrification (ISDD) model (25.6%). A comprehensive analysis of functional diversity, structure and metabolic potential of microbial communities was examined in two models by using functional gene array (GeoChip 2.0). GeoChip data indicated that diversity indices, community structure, and abundance of functional genes were distinct between two models. Diversity indices (Simpson's diversity index (1/D) and Shannon-Weaver index (H')) of all detected genes showed that with elevated influent loading rate, the functional diversity decreased in ISDD model but increased in DSR model. In contrast to ISDD model, the overall abundance of dsr genes was lower in DSR model, while some functional genes targeting from nitrate-reducing sulfide-oxidizing bacteria (NR-SOB), such as Thiobacillus denitrificans, Sulfurimonas denitrificans, and Paracoccus pantotrophus were more abundant in DSR model which were highly associated with the change of S-0 conversion rate obtained in two models. The results obtained in this study provide additional insights into the microbial metabolic mechanisms involved in ISDD and DSR models, which in turn will improve the overall performance of SDD process. (C) 2014 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V. |
| WOS记录号 | WOS:000339036500001 |
| 公开日期 | 2015-03-26 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/9662]  |
| 专题 | 生态环境研究中心_中国科学院环境生物技术重点实验室 |
| 推荐引用方式 GB/T 7714 | Liu, Wenzong. GeoChip-based analysis of the microbial community functional structures in simultaneous desulfurization and denitrification process[J]. JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2014,26(7):1375-1382. |
| APA | Liu, Wenzong.(2014).GeoChip-based analysis of the microbial community functional structures in simultaneous desulfurization and denitrification process.JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,26(7),1375-1382. |
| MLA | Liu, Wenzong."GeoChip-based analysis of the microbial community functional structures in simultaneous desulfurization and denitrification process".JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 26.7(2014):1375-1382. |
入库方式： OAI收割
来源：生态环境研究中心
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