PHBV polymer supported denitrification system efficiently treated high nitrate concentration wastewater: Denitrification performance, microbial community structure evolution and key denitrifying bacteria
文献类型：期刊论文
| 作者 | Xu, Zhongshuo1; Song, Liyan2 ; Dai, Xiaohu1; Chai, Xiaoli1
|
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2018-04-01 |
| 卷号 | 197页码:96-104 |
| 关键词 | PHBV polymer Denitrification performance Mass balance model Microbial community Key denitrifying bacteria |
| ISSN号 | 0045-6535 |
| DOI | 10.1016/j.chemosphere.2018.01.023 |
| 英文摘要 | Biodegradable polymer supported denitrification (BPD) system shows good denitrification performance for the wastewater with low nitrate concentrations. In this study, a BPD system using Poly (3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) polymer as carbon source was developed to treat the wastewater with high nitrate concentrations. The denitrification performance, utilization ratio of PHBV polymers, and microbial community structure evolution and key denitrifying bacteria were comprehensively studied. Results indicated that an average nitrate removal efficiency of 99% could be achieved with an influent NO3--N concentration of 100 mg L-1 and a hydraulic retention time (HRT) of 7.25 h. Mass balance model predicted that 80% of the PHBV polymers were consumed by denitrifying bacteria, close to 72% consumption in real condition, suggesting the model might be useful for PHBV polymers management in BPD system. Further, the bacterial community structures varied along the bioreactor profile, which closely linked to the concentration profiles of nitrate and ammonia. Metatranscriptomic analysis identified the key denitrifying bacteria as Comamonas, Acidovorax and Dechloromonas. The PHBV supported denitrification system developed in this study shows potential for removal of high concentration of nitrate from wastewater. (C) 2018 Elsevier Ltd. All rights reserved. |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000426231900014 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/6280]  |
| 专题 | 中国科学院重庆绿色智能技术研究院 |
| 通讯作者 | Chai, Xiaoli |
| 作者单位 | 1.Tongji Univ, Coll Environm Sci & Engn, Shanghai 200092, Peoples R China 2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Environm Microbiol & Ecol Res Ctr, Chongqing 400714, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Zhongshuo,Song, Liyan,Dai, Xiaohu,et al. PHBV polymer supported denitrification system efficiently treated high nitrate concentration wastewater: Denitrification performance, microbial community structure evolution and key denitrifying bacteria[J]. CHEMOSPHERE,2018,197:96-104. |
| APA | Xu, Zhongshuo,Song, Liyan,Dai, Xiaohu,&Chai, Xiaoli.(2018).PHBV polymer supported denitrification system efficiently treated high nitrate concentration wastewater: Denitrification performance, microbial community structure evolution and key denitrifying bacteria.CHEMOSPHERE,197,96-104. |
| MLA | Xu, Zhongshuo,et al."PHBV polymer supported denitrification system efficiently treated high nitrate concentration wastewater: Denitrification performance, microbial community structure evolution and key denitrifying bacteria".CHEMOSPHERE 197(2018):96-104. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
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