Migration and transformation behaviors of antibiotics in water-sediment system under simulated light and wind waves

• Published in: Journal of hazardous materials Vol. 471; p. 134287
• Main Authors: Shen, Zihao, Zheng, Xiaolan, Yang, Ye, Sun, Yali, Yi, Ciming, Shang, Jingge, Liu, Yanhua, Guo, Ruixin, Chen, Jianqiu, Liao, Qianjiahua
• Format: Journal Article
• Language: English
• Published: Netherlands Elsevier B.V 05.06.2024
• Subjects: Anti-Bacterial Agents - chemistry; Antibiotics; China; Geologic Sediments - chemistry; Lakes - chemistry; Light; Migration and transformation; Norfloxacin - chemistry; Sulfamethoxazole - chemistry; Trimethoprim - chemistry; Water Pollutants, Chemical - analysis; Water Pollutants, Chemical - chemistry; Water Pollutants, Chemical - radiation effects; Water-sediment system; Wind; Wind waves; China; Migration and transformation; Antibiotics; Light; Water-sediment system; Wind waves
• ISSN: 0304-3894; 1873-3336
• DOI: 10.1016/j.jhazmat.2024.134287

Antibiotics can generally be detected in the water-sediment systems of lakes. However, research on the migration and transformation of antibiotics in water-sediment systems based on the influences of light and wind waves is minimal. To address this research gap, we investigated the specific impacts of light and wind waves on the migration and transformation of three antibiotics, norfloxacin (NOR), trimethoprim (TMP), and sulfamethoxazole (SMX), under simulated light and wind waves disturbance conditions in a water-sediment system from Taihu Lake, China. In the overlying water, NOR was removed the fastest, followed by TMP and SMX. Compared to the no wind waves groups, the disturbance of big wind waves reduced the proportion of antibiotics in the overlying water. The contributions of light and wind waves to TMP and SMX degradation were greater than those of microbial degradation. However, the non-biological and biological contributions of NOR to degradation were almost equal. Wind waves had a significant impact on the microbial community changes in the sediment, especially in Methylophylaceae. These results verified the influence of light and wind waves on the migration and transformation of antibiotics, and provide assistance for the risk of antibiotic occurrence in water and sediments. [Display omitted] •Evaluation of light & wind waves influence on antibiotics in water-sediment systems.•High light and big wind wave conditions helped reduce antibiotic levels the most.•Wind waves significantly impacted microbial community changes in sediment.