| 四川高寒高海拔地区污水处理厂抗生素分布特征及生态风险评价 |
| 摘要点击 1631 全文点击 62 投稿时间：2024-09-30 修订日期：2025-03-17 |
| 查看HTML全文
查看全文 查看/发表评论 下载PDF阅读器 |
| 中文关键词 高寒高海拔地区 抗生素 污水处理厂（WWTP） 污染水平 生态风险评估 |
| 英文关键词 high-altitude and cold area antibiotics wastewater treatment plant（WWTP） pollution levels ecological risk assessment |
| DOI 10.13227/j.hjkx.202409354 |
|
| 中文摘要 |
| 作为一种常见新污染物，抗生素会对生态系统造成持续性危害. 当前，关于高寒高海拔地区污水处理厂中抗生素的污染水平鲜有报道. 为了解高寒高海拔地区污水处理厂中抗生素的分布特征，考察了9座污水处理厂中19种抗生素的污染水平及去除性能，并评估了其对生态环境构成的风险. 结果表明，喹诺酮类抗生素（FQs）是高寒高海拔地区污水进出水中检出浓度最高的抗生素，浓度分别为75.44~2 664.38 ng·L-1和62.23~113.88 ng·L-1. 检出的3种四环素类抗生素（TCs）中，强力霉素（DOX）（22.23~436.29 ng·L-1）检出浓度高于四环素（TC）（15.72~34.34 ng·L-1）和土霉素（OTC）（18.92~32.40 ng·L-1）. 在高寒高海拔地区，氧化沟工艺对抗生素的去除能力强于CASS、A2/O和生物流化床工艺. 生态风险评估表明，部分磺胺类抗生素（SAs）会对地区生态环境构成低风险，而其余抗生素不会对地区生态环境构成风险. 其中，磺胺甲唑（SMX）对生态环境造成的风险最高. |
| 英文摘要 |
| As a common new pollutant， antibiotics could cause lasting damage to ecosystems. At present， there have been few reports on the level of antibiotic pollution in wastewater treatment plants in high-altitude and cold areas. In order to understand the distribution characteristics of antibiotics in wastewater treatment plants in high-altitude and cold areas， the sewage levels and removal performance of 19 antibiotics in nine wastewater treatment plants were investigated， and the risks posed by antibiotics to the ecological environment were evaluated. The results showed that quinolone antibiotics （FQs） had the highest concentration in the sewage inlet and outflow water in the high-altitude and cold area， and the concentrations were 75.44-2 664.38 ng·L-1 and 62.23-113.88 ng·L-1， respectively. Among the three tetracycline antibiotics （TCs） detected， doxycycline （DOX） （22.23-436.29 ng·L-1） had higher concentrations than tetracycline （TC） （15.72-34.34 ng·L-1） and oxytetracycline （OTC） （18.92-32.40 ng·L-1）. In the high-altitude and cold area， the oxidation ditch process had better antibiotic removal ability than CASS， A2/O， and biological fluidized bed process. Ecological risk assessment showed that some sulfonamide antibiotics （SAs） would pose a low risk to the regional ecological environment， while the rest of the antibiotics would not pose a risk to the regional ecological environment. Among them， sulfamethoxazole （SMX） posed the highest risk to the ecological environment. |
