Complete pentachlorophenol biodegradation in a dual-working electrode bioelectrochemical system: Performance and functional microorganism identification
文献类型：期刊论文
| 作者 | Cai, Xixi1; Li, Jibing3,4; Guan, Fengyi1; Luo, Xiaoshan1; Yu, Zhen2; Yuan, Yong1 |
| 刊名 | WATER RESEARCH
 |
| 出版日期 | 2023-02-15 |
| 卷号 | 230页码:9 |
| 关键词 | Chlorophenols Stable isotope probing Functional degrading bacteria Dechlorination Mineralization Complete degradation |
| ISSN号 | 0043-1354 |
| DOI | 10.1016/j.watres.2022.119529 |
| 英文摘要 | Bioelectrochemical system (BES) can effectively promote the reductive dechlorination of chlorophenols (CPs). However, the complete degradation of CPs with sequential dechlorination and mineralization processes has rarely achieved from the BES. Here, a dual-working electrode BES was constructed and applied for the complete degradation of pentachlorophenol (PCP). Combined with DNA-stable isotope probing (DNA-SIP), the biofilms attached on the anodic and cathodic electrode in the BES were analyzed to explore the dechlorinating and mineralizing microorganisms. Results showed that PCP removal efficiency in the dual-working BES (84% for 21 days) was 4.1 and 4.7 times higher than those of conventional BESs with a single anodic or cathodic working electrode, respectively. Based on DNA-SIP and high-throughput sequencing analysis, the cathodic working electrode harbored the potential dechlorinators (Comamonas, Pseudomonas, Methylobacillus, and Dechlorosoma), and the anodic working enriched the potential intermediate mineralizing bacteria (Comamonas, Steno-trophomonas, and Geobacter), indicating that PCP could be completely degraded under the synergetic effect of these functional microorganisms. Besides, the potential autotrophic functional bacteria that might be involved in the PCP dechlorination were also identified by SIP labeled with 13C-NaHCO3. Our results proved that the dual-working BES could accelerate the complete degradation of PCP and enrich separately the functional microbial consortium for the PCP dechlorination and mineralization, which has broad potential for bioelectrochemical techniques in the treatment of wastewater contaminated with CPs or other halogenated organic compounds. |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000914984100001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/72535]  |
| 专题 | 有机地球化学国家重点实验室 |
| 通讯作者 | Yuan, Yong |
| 作者单位 | 1.Guangdong Univ Technol, Inst Environm Hlth & Pollut Control, Sch Environm Sci & Engn, Guangzhou Key Lab Environm Catalysis & Pollut Cont, Guangzhou 510006, Peoples R China 2.Guangdong Acad Sci, Inst Ecoenvironm & Soil Sci, Guangdong Key Lab Integrated Agroenvironm Pollut C, Guangzhou 510650, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China 4.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangdong Hong Kong Macao Joint Lab Environm Pollu, Hong Kong 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cai, Xixi,Li, Jibing,Guan, Fengyi,et al. Complete pentachlorophenol biodegradation in a dual-working electrode bioelectrochemical system: Performance and functional microorganism identification[J]. WATER RESEARCH,2023,230:9. |
| APA | Cai, Xixi,Li, Jibing,Guan, Fengyi,Luo, Xiaoshan,Yu, Zhen,&Yuan, Yong.(2023).Complete pentachlorophenol biodegradation in a dual-working electrode bioelectrochemical system: Performance and functional microorganism identification.WATER RESEARCH,230,9. |
| MLA | Cai, Xixi,et al."Complete pentachlorophenol biodegradation in a dual-working electrode bioelectrochemical system: Performance and functional microorganism identification".WATER RESEARCH 230(2023):9. |
入库方式： OAI收割
来源：广州地球化学研究所
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