污水处理厂废水排放对近海抗生素污染的贡献:以杭州湾为例

李菲菲; 苏志国; 曹丰; 母清林; 黄备; 陈吕军; 温东辉

doi:10.13205/j.hjgc.202404001

污水处理厂废水排放对近海抗生素污染的贡献:以杭州湾为例

doi: 10.13205/j.hjgc.202404001

1.清华大学环境学院,北京 100084;
2.北京大学环境科学与工程学院,北京 100087;
3.浙江省海洋生态环境监测中心,浙江舟山 316021

基金项目:

国家自然科学基金(52200227,51938001,52170185,52300243)

详细信息

作者简介:
李菲菲(1983-),女,博士,主要研究方向为环境新污染物及其环境风险评价。feifeili0901@163.com

通讯作者:
温东辉(1967-),女,教授,主要研究方向为水污染控制与环境生物技术。dhwen@pku.edu.cn

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出版历程
- 收稿日期: 2024-01-24
- 网络出版日期: 2024-06-01

CONTRIBUTION OF WASTEWATER DISCHARGE FROM SEWAGE TREATMENT PLANTS TO ANTIBIOTIC POLLUTION IN COASTAL WATER: A CASE STUDY OF HANGZHOU BAY

1. School of Environment, Tsinghua University,Beijing 100084, China;
2. College of Environmental Sciences and Engineering, Peking University,Beijing 100087, China;
3. Zhejiang Marine Ecology and Environment Monitoring Center,Zhoushan 316021, China

摘要

摘要: 以污染形势严峻的东海杭州湾(HB)为研究对象,采用超高效液相色谱质谱联用仪,探究6类77种抗生素在污水处理厂、近岸纳污区和近海地区的组成和分布规律。检测结果显示,污水处理厂对抗生素的去除率介于31.1%~88.8%,其中对喹诺酮类抗生素去除率最高,平均为80.3%。污水厂出水排入相应的近岸纳污区,嘉兴(JX)纳污区检出53种抗生素,平均浓度为48180.7 ng/L,上虞(SY)纳污区检出63种抗生素,平均浓度为341.2 ng/L。主成分分析结果表明,污水处理厂是SY纳污区抗生素污染的重要来源,而JX纳污区抗生素受污水处理厂排水的影响小,明显受到含有兽用抗生素的其他污染源影响。近岸纳污区汇集了含抗生素废水后,成为近海抗生素污染的"源"。近海检出51种抗生素,平均浓度达189.5 ng/L。抗生素浓度从近岸向近海扩散存在明显的"距离衰减"趋势,尤其以喹诺酮类抗生素的衰减幅度最大。
- 抗生素 /
- 污水处理厂 /
- 近岸纳污区 /
- 近海 /
- 杭州湾
Abstract: The research was focused on Hangzhou Bay (HB) in the East China Sea, a region characterized by severe water pollution. The composition and distribution of 77 antibiotics belonging to 6 classes, in sewage treatment plants, near-shore effluent receiving areas, and coastal waters were investigated using high-performance liquid chromatography-mass spectrometry. The findings revealed that the removal rates of antibiotics in sewage treatment plants ranged from 31.1% to 88.8%, with quinolones exhibiting the highest removal rate at an average value of 80.3%. Effluent from the sewage treatment plants was discharged into the corresponding effluent receiving areas. In the Jiaxing (JX) effluent receiving area, 53 antibiotics were identified with an average concentration of 48180.7 ng/L, while the Shangyu (SY) effluent receiving area contained 63 antibiotics with an average concentration of 341.2 ng/L. The result of the principal component analysis indicated that the sewage treatment plant was a significant source of antibiotic pollution in the SY effluent receiving area. In contrast, the antibiotics in the JX effluent receiving area were less influenced by the sewage treatment plant discharge and more affected by other sources containing veterinary antibiotics. Following the collection of antibiotic-containing wastewater, the near-shore effluent receiving areas became a "source" of antibiotic pollution in the coastal sea. The waterin coastal area contained 51 antibiotics with an average concentration of 189.5 ng/L. A clear "distance attenuation" trend was observed in the diffusion of antibiotic concentration from near-shore to coastal areas, particularly for quinolone antibiotics.
- antibiotics /
- sewage treatment plant /
- effluent receiving area /
- coastal water /
- Hangzhou Bay

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