Influence of microbial spatial distribution and activity in an EGSB reactor under high- and low-loading denitrification desulfurization
文献类型：期刊论文
| 作者 | Huang, Cong; Liu, Qian; Wang, Hong; Gao, Lei; Hou, Ya-Nan; Nan, Jun; Ren, Nanqi; Li, Zhi-Ling |
| 刊名 | ENVIRONMENTAL RESEARCH
 |
| 出版日期 | 2021-04 |
| 卷号 | 195页码:- |
| 关键词 | EGSB reactor Denitrification desulfurization Bacterial distribution S0 recovery Functional gene activity |
| ISSN号 | 0013-9351 |
| 英文摘要 | To characterize the impact of reactor configuration and influent loading on elemental sulphur (S-0) recovery during denitrification desulfurization, a laboratory-scale expanded granular sludge bed (EGSB) reactor was established under two influent acetate/nitrate/sulphide loadings; the water flow velocity, microbial community, and functional genes at different heights were investigated. There was no S-0 generated when acetate/nitrate/sulphide loadings were set to 0.95/0.60/1.05 kg/m(3).d (low-loading). Furthermore, there were no typical denitrifying sulphide oxidizing bacteria under this condition, and Syntrophobacter, Anaerolineaceae genera were predominant in the reactor. As the influent loading was doubled (high-loading), S-0 recovery increased to 87%; the bacterial distribution was relatively homogeneous with sulphide oxidation genera (Thauera) being predominant. Neither nirK nor sqr genes were detected in the low-loading sample at a height of 50 cm. The sqr/sox ratios of low-loading stage were 2.50 (10 cm), 0.94 (30 cm), and 0 (50 cm), and the ratios of the high-loading stage were 1.38 (10 cm), 1.33 (30 cm), and 1.08 (50 cm). A hydrodynamics analysis indicated that the water flow velocity was homogenous throughout the reactor. Appropriate reactor configuration and operation parameters play an important role in the efficient regulation of S-0 recovery during denitrification desulfurization. |
| WOS研究方向 | Environmental Sciences ; Public, Environmental & Occupational Health |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/46120]  |
| 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 |
| 作者单位 | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Environm Biotechnol, Beijing 100085, Peoples R China 2.Harbin Inst Technol, State Key Lab Urban Water Resource & Environm, Harbin 150090, Peoples R China 3.Dongguan Univ Technol, Res Ctr Ecoenvironm Engn, Dongguan 523808, Peoples R China 4.Qinghai Univ, Coll Chem Engn, Xining 810016, Peoples R China 5.Chinese Acad Sci, Tianjin Inst Ind Biotechnol, Natl Technol Innovat Ctr Synthet Biol, Tianjin 300308, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, Cong,Liu, Qian,Wang, Hong,et al. Influence of microbial spatial distribution and activity in an EGSB reactor under high- and low-loading denitrification desulfurization[J]. ENVIRONMENTAL RESEARCH,2021,195:-. |
| APA | Huang, Cong.,Liu, Qian.,Wang, Hong.,Gao, Lei.,Hou, Ya-Nan.,...&Li, Zhi-Ling.(2021).Influence of microbial spatial distribution and activity in an EGSB reactor under high- and low-loading denitrification desulfurization.ENVIRONMENTAL RESEARCH,195,-. |
| MLA | Huang, Cong,et al."Influence of microbial spatial distribution and activity in an EGSB reactor under high- and low-loading denitrification desulfurization".ENVIRONMENTAL RESEARCH 195(2021):-. |
入库方式： OAI收割
来源：生态环境研究中心
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