Performance and mechanism of SMX removal in an electrolysis-integrated tidal flow constructed wetland at low temperature
文献类型：期刊论文
| 作者 | Liu, Ying; Liu, Xiaohui; Wang, Hongcheng ; Fang, Yingke; Li, Zhiling; Lu, Shaoyong; Wang, Aijie
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| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2022-04-15 |
| 卷号 | 434期号:0页码:134494 |
| 关键词 | ANTIBIOTIC-RESISTANCE GENES WATER TREATMENT-PLANT WASTE-WATER MICROBIAL COMMUNITY MEMBRANE BIOREACTOR NITROGEN REMOVAL SULFAMETHOXAZOLE DEGRADATION SEWAGE FATE |
| ISSN号 | 1385-8947 |
| 英文摘要 | Constructed wetlands are a well-established technique to degrade wastewater contained antibiotics. And its removal at low temperature (< 15 C) has baffled researchers and engineers for decades. Electrochemical process has been increasingly valued as a promising approach to enhance antibiotics removal by both electrocatalytic oxidation-reduction and electrocoagulation. A pilot study was conducted using an electrolysis-integrated tidal flow constructed wetland (E-TFCW) to intensity sulfamethoxazole (SMX) under 4, 8 and 12 & DEG;C temperature re-gimes. E-TFCW have shown the better SMX removal efficiency (16.38% -31.45%) at low temperature, which was nearly 14.10% -25.31% higher than that of TFCW. It was no significant difference between 4 & DEG;C, 8 & DEG;C and 12 & DEG;C in E-TFCW, which was attributed to electrocatalysis of iron electrode. Temperature had no effect on the degradation path of SMX, where SMX was removed with hydroxylation, nitration and S-N hydrolysis. Proteo-bacteria contributed to higher SMX removal efficiency at low temperature. The response speed of microorganisms to external environment (< 8 & DEG;C) was accelerated owing to electrolysis, where the populations with same func-tions can be gathered together to resist the change of the extreme environment. However, the cooperative relationship among microorganisms in E-TFCW was weakened at 4 & PLUSMN; 1 & DEG;C. PICRUSt analysis results further demonstrated that the abundance of extracellular electron transfer related functional genes was increased. This study provides new insights into electrolysis-integrated constructed wetland functioning stability for accelerating antibiotics removal in cold environment. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/47810]  |
| 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 |
| 通讯作者 | Wang, Aijie |
| 作者单位 | 1.Harbin Inst Technol, Sch Environm, State Key Lab Urban Water Resource & Environm, Harbin 150001, Peoples R China 2.Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Natl Engn Lab Lake Pollut Control & Ecol Restorat, Res Ctr Lake Environm,State Environm Protect Sci, Beijing 100012, Peoples R China 3.Harbin Inst Technol Shenzhen, Shenzhen Key Lab Organ Pollut Prevent & Control, Sch Civil & Environm Engn, Shenzhen 518055, Peoples R China 4.Chinese Acad Sci, CAS Key Lab Environm Biotechnol, Ecoenvironm Sci Res Ctr, Beijing 100085, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Ying,Liu, Xiaohui,Wang, Hongcheng,et al. Performance and mechanism of SMX removal in an electrolysis-integrated tidal flow constructed wetland at low temperature[J]. CHEMICAL ENGINEERING JOURNAL,2022,434(0):134494. |
| APA | Liu, Ying.,Liu, Xiaohui.,Wang, Hongcheng.,Fang, Yingke.,Li, Zhiling.,...&Wang, Aijie.(2022).Performance and mechanism of SMX removal in an electrolysis-integrated tidal flow constructed wetland at low temperature.CHEMICAL ENGINEERING JOURNAL,434(0),134494. |
| MLA | Liu, Ying,et al."Performance and mechanism of SMX removal in an electrolysis-integrated tidal flow constructed wetland at low temperature".CHEMICAL ENGINEERING JOURNAL 434.0(2022):134494. |
入库方式： OAI收割
来源：生态环境研究中心
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