Reduction of bromate in a biological activated carbon filter under high bulk dissolved oxygen conditions and characterization of bromate-reducing isolates
文献类型：期刊论文
| 作者 | Zhang, Yu
|
| 刊名 | BIOCHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2012 |
| 卷号 | 65期号:1页码:44－50 |
| 关键词 | Biofilters Bromate-reducing bacteria Dissolved oxygen Biofilms Biotransformation Characterization |
| ISSN号 | 1369-703X |
| 中文摘要 | A biological activated carbon (BAC) filter was constructed using BAC from a pilot system that exhibited the ability to reduce bromate (BrO3-) and two BrO3--reducing bacteria were isolated and characterized. The BAC filter could almost completely reduce BrO3- (60 mu Br/L) to bromide (Br-) at an influent dissolved oxygen (DO) level of approximately 8.0 mg/L and an empty bed contact time of 30 +/- 2 min using acetate as the electron donor shortly after the start-up. Phylogenetic analysis of the 16S rRNA gene sequences of a biological sample from the BAC filter showed that among the six detected orders, Rhodocyclales- and Burkholderiales-related microorganisms were dominant and Rhodocyclaceae- and Comamonadaceae-related microorganisms may play a role in BrO3- reduction. Two isolated pure cultures, i.e.Sphingomonas sp. 4721 and Deinococcus sp. 4710, exhibited the ability to reduce BrO3- in the presence of NO3-. The result of this study clearly indicated that DO was a competitor of BrO3- as an electron acceptor while NO3- was not. Construction of a BAC filter which could restrict oxygen transfer within a biofilm still remains to be a challenge. (c) 2012 Elsevier B.V. All rights reserved. |
| WOS记录号 | WOS:000305300400007 |
| 公开日期 | 2014-11-04 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/7814]  |
| 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 | Zhang, Yu. Reduction of bromate in a biological activated carbon filter under high bulk dissolved oxygen conditions and characterization of bromate-reducing isolates[J]. BIOCHEMICAL ENGINEERING JOURNAL,2012,65(1):44－50. |
| APA | Zhang, Yu.(2012).Reduction of bromate in a biological activated carbon filter under high bulk dissolved oxygen conditions and characterization of bromate-reducing isolates.BIOCHEMICAL ENGINEERING JOURNAL,65(1),44－50. |
| MLA | Zhang, Yu."Reduction of bromate in a biological activated carbon filter under high bulk dissolved oxygen conditions and characterization of bromate-reducing isolates".BIOCHEMICAL ENGINEERING JOURNAL 65.1(2012):44－50. |
入库方式： OAI收割
来源：生态环境研究中心
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