| 论文编号: | |
| 论文题目: | Removal of sulfamethoxazole from salt-laden wastewater in constructed wetlands affected by plant species, salinity levels and co-existing contaminants |
| 英文论文题目: | Removal of sulfamethoxazole from salt-laden wastewater in constructed wetlands affected by plant species, salinity levels and co-existing contaminants |
| 第一作者: | 梁银秀 |
| 英文第一作者: | Liang,Yinxiu |
| 联系作者: | 祝惠 |
| 英文联系作者: | Zhu,Hui |
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| 发表年度: | 2018 |
| 卷: | 341 |
| 期: | |
| 页码: | 462-470 |
| 摘要: | Constructed wetlands (CWs) have been applied to remove antibiotics under many conditions. However, the removal of antibiotics from saline wastewater in CWs is rarely studied, especially considering the constitution and configuration of CWs and influent water characteristics. In this current study, three experiments with two scales of CWs were conducted to investigate the influence of plant species, salinity levels and co-existing contaminants (nutrients and heavy metals) on the antibiotic sulfamethoxazole (SMX) removal. The four tested plant species did not show a significant influence on SMX removal in CW mesocosms when electrical conductivity (EC) was at 7 mS/cm, and the removal percentages of 73.1-74.8% and 70.1-76.3% for SMX were observed under low and high influent loads, respectively. High salinity level (EC at 30 mS/cm) significantly (p < 0.05) suppressed SMX removal under high influent SMX loads in CW microcosms. The addition of nutrients and heavy metals generally improved the removal of SMX (except for EC of 30 mS/cm treatment under high influent load) in CW microcosms, especially when the heavy metal concentrations were low. In conclusion, CWs can be a potential technology to efficiently remove SMX-like antibiotics from saline wastewater (EC < 30 mS/cm). |
| 英文摘要: | Constructed wetlands (CWs) have been applied to remove antibiotics under many conditions. However, the removal of antibiotics from saline wastewater in CWs is rarely studied, especially considering the constitution and configuration of CWs and influent water characteristics. In this current study, three experiments with two scales of CWs were conducted to investigate the influence of plant species, salinity levels and co-existing contaminants (nutrients and heavy metals) on the antibiotic sulfamethoxazole (SMX) removal. The four tested plant species did not show a significant influence on SMX removal in CW mesocosms when electrical conductivity (EC) was at 7 mS/cm, and the removal percentages of 73.1-74.8% and 70.1-76.3% for SMX were observed under low and high influent loads, respectively. High salinity level (EC at 30 mS/cm) significantly (p < 0.05) suppressed SMX removal under high influent SMX loads in CW microcosms. The addition of nutrients and heavy metals generally improved the removal of SMX (except for EC of 30 mS/cm treatment under high influent load) in CW microcosms, especially when the heavy metal concentrations were low. In conclusion, CWs can be a potential technology to efficiently remove SMX-like antibiotics from saline wastewater (EC < 30 mS/cm). |
| 刊物名称: | Chemical Engineering Journal |
| 英文刊物名称: | Chemical Engineering Journal |
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| 参与作者: | H. Zhu, G. Banuelos, B. Shutes, B. X. Yan and X. W. Cheng |
| 英文参与作者: | H. Zhu, G. Banuelos, B. Shutes, B. X. Yan and X. W. Cheng |
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Removal of sulfamethoxazole from salt-laden wastewater in constructed wetlands affected by plant spe
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