摘要
      大多数沉降湖被开垦为鱼塘，但抗生素的广泛使用导致了抗生素耐药性基因（ARGs）的污染。本文以沸石为滤料，构建了卧式潜水污水处理装置，探讨了其对污水中常规污染物和磺酰胺类ARGs的去除效果。结果表明，沸石滤料对总氮和氨氮的去除率分别为59.0%和63.8%，高于对总磷和COD的去除率。废水中sul1和sul2的绝对丰度分别为2.81×104拷贝·L−1和2.42×103拷贝·L–1。平均而言，可以去除60.62%的sul1和75.84%的sul2，并且可以去除90%以上的sul1和sul2。实验表明，废水在处理装置中的停留时间对去除效果有显著影响。养殖废水处理前后的微生物群落结构有很大差异。糖单胞菌和分枝杆菌的丰度变化影响磺酰胺ARGs的去除。
Abstract
A majority of subsidence lakes were reclaimed as fish ponds, but the widespread use of antibiotics has caused the pollution of antibiotic resistance genes (ARGs). This paper uses zeolite as a filter material to construct a horizontal submersible wastewater treatment device and explores its effect on the removal of conventional pollutants and sulfonamide ARGs in wastewater. The results showed that the removal of total nitrogen and ammonia nitrogen by the zeolite filter media were 59.0% and 63.8%, respectively, which were higher than the removal of total phosphorus and COD. The absolute abundances of sul1 and sul2 in wastewater were 2.81 × 104 copies·L−1 and 2.42 × 103 copies·L−1. On average, 60.62% of sul1 and 75.84% of sul2 can be removed, and more than 90% of sul1 and sul2 can be removed. Experiments showed that the residence time of wastewater in the treatment device had a significant impact on removal. The microbial community structure of aquaculture wastewater was quite different before and after wastewater treatment. The abundance changes of Saccharimonadales and Mycobacterium affect the removal of sulfonamide ARGs.

https://www.mdpi.com/1660-4601/19/7/4281