复合填料滤坝去除水产养殖废水中的抗生素

邹耀; 许允荣; 邱光磊; 胡勇有

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中国环境科学 ›› 2025, Vol. 45 ›› Issue (6) : 3084-3091.

水污染与控制

复合填料滤坝去除水产养殖废水中的抗生素

邹耀^1,2, 许允荣¹, 邱光磊¹, 胡勇有¹

作者信息 +

Removal of antibiotics from aquaculture wastewater by composite packed filter dams

ZOU Yao^1,2, XU Yun-rong¹, QIU Guang-lei¹, HU Yong-you¹

Author information +

文章历史 +

摘要

针对传统“三池两坝”组合工艺对抗生素去除效果不佳的问题,构建了一种复合填料滤坝,通过复合填料球与特殊滤坝结构的有机结合,旨在实现抗生素高效广谱的去除.结果表明:复合填料滤坝对鲈鱼养殖塘水、鳗鱼养殖塘水、生鱼养殖塘水和虾养殖塘水中抗生素总质量浓度的去除率均维持在80%以上,且对喹诺酮类、磺胺类、四环素类、氯霉素类均具有不同程度的去除,其中喹诺酮类和磺胺类抗生素的去除效果最好.由铁屑、陶粒和聚丁二酸丁二醇酯(PBS)组成的复合填料可以显著提高对喹诺酮类和磺胺类抗生素的吸附性能.其中,陶粒起到吸附作用,可以通过孔填充和π-π电子供体-受体相互作用的机制去除喹诺酮类和磺胺类抗生素,是抗生素减量化的主要途径;铁屑通过吸附及还原作用去除四环素和氯霉素,且能加速直接电子传递过程促进抗生素降解;PBS通过反硝化共代谢参与抗生素削减;铁屑与PBS均能在不同程度上提升功能微生物的代谢活性,从而加速抗生素的去除;各组分之间相互协同、共同作用有助于实现抗生素的高效广谱去除.

Abstract

In view of the typically unsatisfactory antibiotics removal performances that were observed in the traditional 'three ponds and two dams' combination process, a new composite packing filter dam was developed. Through the synergetic combination of composite packing balls with a specially designed filter dam structure, highly efficient and broad-spectrum removal of antibiotics was achieved. Results showed that the removal rates of antibiotics (in terms of total mass concentrations) in perch, eel, raw fish and shrimp culture pond water were maintained at more than 80% by the composite packing filter dam. Quinolones, sulphonamides, tetracyclines and chloramphenicol were removed to different extents, among which the best removal effects were observed for quinolones and sulphonamides. The composite filler consisting of iron filings, ceramsites and polybutylene succinate (PBS) was found to significantly improve the removal of quinolones and sulfonamides. Ceramsites were demonstrated to play an adsorption role through which quinolone and sulfonamide antibiotics were removed via pore filling and π-π electron donor-acceptor interactions, which was identified as the main antibiotic removal pathway. Iron filings were shown to remove tetracycline and chloramphenicol through adsorption and reduction processes, and were suggested to have accelerated the direct electron transfer process that promoted antibiotic degradation. PBS was involved in the removal of antibiotics through co-metabolic denitrification. Both iron filings and PBS were proven to enhance the metabolic activity of functional microorganisms, thereby accelerating antibiotic removal. The synergistic effect between these components was confirmed to help achieve efficient and broad-spectrum antibiotic removal.

导出引用

邹耀, 许允荣, 邱光磊, 胡勇有. 复合填料滤坝去除水产养殖废水中的抗生素[J]. 中国环境科学. 2025, 45(6): 3084-3091

ZOU Yao, XU Yun-rong, QIU Guang-lei, HU Yong-you. Removal of antibiotics from aquaculture wastewater by composite packed filter dams[J]. China Environmental Science. 2025, 45(6): 3084-3091

中图分类号： X703

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