Knowledge Management System Of Guangzhou Institute of Geochemistry，CAS
| Cai, Xixi1; Li, Jibing2,3; Guan, Fengyi1; Luo, Xiaoshan1; Yu, Zhen4; Yuan, Yong1 | |
| Complete pentachlorophenol biodegradation in a dual-working electrode bioelectrochemical system: Performance and functional microorganism identification | |
| Source Publication | WATER RESEARCH
 |
| ISSN | 0043-1354 |
| 2023-02-15 | |
| Volume | 230Pages:9 |
| DOI | 10.1016/j.watres.2022.119529 |
| Language | 英语 |
| WOS Research Area | Engineering ; Environmental Sciences & Ecology ; Water Resources |
| Abstract | 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. |
| Keyword | Chlorophenols Stable isotope probing Functional degrading bacteria Dechlorination Mineralization Complete degradation |
| WOS ID | WOS:000914984100001 |
| Indexed By | SCI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.gig.ac.cn/handle/344008/72536 |
| Collection | 有机地球化学国家重点实验室 |
| Corresponding Author | Yuan, Yong |
| Affiliation | 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.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 3.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China 4.Guangdong Acad Sci, Inst Ecoenvironm & Soil Sci, Guangdong Key Lab Integrated Agroenvironm Pollut C, Guangzhou 510650, Peoples R China |
| Recommended Citation 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. |
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