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Li H, Liu B, Li M, Shen M. Livestock and poultry breeding farms as a fixed and underestimated source of antibiotic resistance genes. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:49916-49931. [PMID: 39052112 DOI: 10.1007/s11356-024-34413-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Accepted: 07/14/2024] [Indexed: 07/27/2024]
Abstract
The excessive use of antibiotics, disinfectants, and drugs in livestock and poultry breeding has resulted in a rise in the presence of antibiotic resistance genes (ARGs). Antibiotic-resistant bacteria (ARB) and ARGs have been widely found in animal feces, farm wastewater, and farm air. ARGs can not only spread across media through adsorption and migration, but also transfer resistance across bacterial genera through horizontal gene transfer. Livestock breeding has become a fixed and unavoidable source of ARGs in the environment. Existing technologies for controlling ARGs, such as composting, disinfection, and sewage treatment, are not efficient in removing ARB and ARGs from waste. Furthermore, the remaining ARGs still possess a strong capacity for dissemination. At present, antibiotics used in animal husbandry are difficult to replace in a short period of time. The growth and potential risks of resistance genes in livestock and poultry breeding sources in the receiving environment are not yet clear. In this paper, we summarize the current situation of ARGs in the livestock and poultry breeding environment. We also explain the key environmental processes, main influencing factors, and corresponding ecological risks associated with ARGs in this environment. The advantages and disadvantages of current technologies for the removal of ARGs are primarily discussed. There is a particular emphasis on clarifying the spatiotemporal evolution patterns and environmental process mechanisms of ARGs, as well as highlighting the importance and urgency of developing efficient pollution control technologies.
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Affiliation(s)
- Haokai Li
- School of Energy and Environment, Anhui University of Technology, Maanshan, Anhui, 243002, People's Republic of China
| | - Bohao Liu
- School of Energy and Environment, Anhui University of Technology, Maanshan, Anhui, 243002, People's Republic of China
| | - Mingyu Li
- School of Energy and Environment, Anhui University of Technology, Maanshan, Anhui, 243002, People's Republic of China
| | - Maocai Shen
- School of Energy and Environment, Anhui University of Technology, Maanshan, Anhui, 243002, People's Republic of China.
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Lee JM, Lee YJ, Jeong YJ, Cho IS, Jho EH, Park SJ, Lee CG. Graphitic-carbon-nitride-hydrophilicity-dependent photocatalytic degradation of antibiotics with different log K ow. CHEMOSPHERE 2024; 352:141511. [PMID: 38401862 DOI: 10.1016/j.chemosphere.2024.141511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 02/03/2024] [Accepted: 02/19/2024] [Indexed: 02/26/2024]
Abstract
The surface hydrophilicity of a photocatalyst is an important factor that directly influences its interactions with organic pollutants and significantly impacts its degradation. In this study, we investigated the impact of increased hydrophilicity of g-C3N4 (CN) by alkaline solvothermal treatment on the degradations of three antibiotics (oxytetracycline (OTC), oxolinic acid (OA), and sulfamethoxazole (SMX)) with different log Kow values. Scanning electron microscopy (SEM), X-ray diffraction analysis (XRD), and Fourier-transform infrared (FT-IR) spectroscopy showed no significant differences in the morphology, crystalline structure, and surface functional groups of CN after alkaline solvothermal treatment (Nv-HPCN). However, contact angle analysis revealed that Nv-HPCN (31.8°) was more hydrophilic than CN (61.1°). To assess the hydrophilicity of the antibiotics, the log Kow values of SMX (0.77), OA (0.43), and OTC (-0.34) were measured. Nv-HPCN showed faster OTC degradation than CN, whereas the opposite pattern was observed for the degradation of OA. Scavenger tests showed that O2•- and h+ mainly contributed to the degradation of these antibiotics. Furthermore, the influences of NOM and coexisting anions on antibiotic degradation were investigated. This study thus offers perspectives on the impact of surface hydrophilicity of photocatalysts on the degradation of antibiotics.
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Affiliation(s)
- Jong-Min Lee
- Dept. of Environmental and Safety Engineering, Ajou University, Suwon, 16419, Republic of Korea
| | - Youn-Jun Lee
- Dept. of Energy Systems Research, Ajou University, Suwon, 16419, Republic of Korea
| | - Yoo Jae Jeong
- Dept. of Energy Systems Research, Ajou University, Suwon, 16419, Republic of Korea; Dept. of Materials Science & Engineering, Ajou University, Suwon, 16499, Republic of Korea
| | - In Sun Cho
- Dept. of Energy Systems Research, Ajou University, Suwon, 16419, Republic of Korea; Dept. of Materials Science & Engineering, Ajou University, Suwon, 16499, Republic of Korea
| | - Eun Hea Jho
- Dept. of Agricultural and Biological Chemistry, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Seong-Jik Park
- Dept. of Bioresources and Rural System Engineering, Hankyong National University, Anseong, 17579, Republic of Korea
| | - Chang-Gu Lee
- Dept. of Environmental and Safety Engineering, Ajou University, Suwon, 16419, Republic of Korea; Dept. of Energy Systems Research, Ajou University, Suwon, 16419, Republic of Korea.
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