Combined bioaugmentation with electro-biostimulation for improved bioremediation of antimicrobial triclocarban and PAHs complexly contaminated sediments
文献类型：期刊论文
| 作者 | Bai, Yang; Liang, Bin; Yun, Hui; Zhao, Youkang; Li, Zhiling; Qi, Mengyuan; Ma, Xiaodan; Huang, Cong; Wang, Aijie |
| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
 |
| 出版日期 | 2021-02-05 |
| 卷号 | 403页码:- |
| 关键词 | Complexly contaminated sediments Bioremediation Triclocarban (TCC) detoxification Biostimulation and bioaugmentation PAHs degradation |
| ISSN号 | 0304-3894 |
| 英文摘要 | Haloaromatic antimicrobial triclocarban (TCC) is an emerging refractory contaminant that commonly coexisted with conventional contaminants such as polycyclic aromatic hydrocarbons (PAHs). TCC may negatively affect the metabolic activity of sediment microorganisms and persist in environment; however, remediation methods that relieve the TCC inhibitory effect in sediments remain unknown. Here, a novel electro-biostimulation and bioaugmentation combined remediation system was proposed by the simultaneous introduction of a TCCdegrading Ochrobactrum sp. TCC-2 and electrode into the TCC and PAHs co-contaminated sediments. Results indicated the PAHs and TCC degradation efficiencies of the combined system were 2.9-3.0 and 4.6 times respectively higher than those of the control group (no electro-biostimulation and no bioaugmentation treatments). The introduced strain TCC-2 and the enriched electroactive bacteria and PAHs degraders (e.g. Desulfobulbus, Clostridium, and Paenarthrobacter) synergistically contributed to the accelerated degradation of PAHs and TCC. The preferential elimination of the TCC inhibitory effect through bioaugmentation treatment could restore microbial functions by increasing the functional gene abundances related to various metabolic processes. This study offers new insights into the response of sediment functional communities to TCC stress, electrobiostimulation and bioaugmentation operations and provides a promising system for the enhanced bioremediation of the PAHs and TCC co-contaminated sediments. |
| WOS研究方向 | Engineering, Environmental ; Environmental Sciences |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/46103]  |
| 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, Tianjin Inst Ind Biotechnol, Natl Technol Innovat Ctr Synthet Biol, Tianjin 300308, Peoples R China 2.Lanzhou Univ, Sch Life Sci, Minist Educ, Key Lab Cell Activ & Stress Adaptat, Lanzhou 730000, Peoples R China 3.Harbin Inst Technol, Sch Environm, State Key Lab Urban Water Resource & Environm, Harbin 150090, Peoples R China 4.Harbin Inst Technol Shenzhen, Sch Civil & Environm Engn, Shenzhen 518055, Peoples R China 5.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Environm Biotechnol, Beijing 100085, Peoples R China |
| 推荐引用方式 GB/T 7714 | Bai, Yang,Liang, Bin,Yun, Hui,et al. Combined bioaugmentation with electro-biostimulation for improved bioremediation of antimicrobial triclocarban and PAHs complexly contaminated sediments[J]. JOURNAL OF HAZARDOUS MATERIALS,2021,403:-. |
| APA | Bai, Yang.,Liang, Bin.,Yun, Hui.,Zhao, Youkang.,Li, Zhiling.,...&Wang, Aijie.(2021).Combined bioaugmentation with electro-biostimulation for improved bioremediation of antimicrobial triclocarban and PAHs complexly contaminated sediments.JOURNAL OF HAZARDOUS MATERIALS,403,-. |
| MLA | Bai, Yang,et al."Combined bioaugmentation with electro-biostimulation for improved bioremediation of antimicrobial triclocarban and PAHs complexly contaminated sediments".JOURNAL OF HAZARDOUS MATERIALS 403(2021):-. |
入库方式： OAI收割
来源：生态环境研究中心
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