| Issue |
E3S Web Conf.
Volume 628, 2025
2025 7th International Conference on Environmental Prevention and Pollution Control Technologies (EPPCT 2025)
|
|
|---|---|---|
| Article Number | 01024 | |
| Number of page(s) | 4 | |
| Section | Research on the Characterization and Remediation Technologies of Environmental Pollutants | |
| DOI | https://doi.org/10.1051/e3sconf/202562801024 | |
| Published online | 16 May 2025 | |
The performance of pelletized biochar on the transport of extracellular antibiotic resistance genes in marine aquaculture sediments
1
Sanya Oceanographic Institution, Ocean University of China,
Sanya
572000, China
2
Institute of Coastal Environmental Pollution Control, Ministry of Education Key Laboratory of Marine Environment and Ecology, College of Environmental Science and Engineering, Ocean University of China,
Qingdao,
266100, China
The transport of extracellular antibiotic resistance genes (eARGs) in intensive marine aquaculture has become a serious threat to global environmental ecological security and public health within the framework of "One Health". However, the inhibitory effect and mechanism of pelletized biochars (PBCs) on the migration of eARGs in aquaculture sediments remain unclear. This study investigated the inhibitory efficiency of PBCs on the transport of eARGs in marine aquaculture sediments and discussed the influence of salinity changes on the transport performance of eARGs. The results showed that PBCs could effectively inhibit the transport of eARGs, and the order of inhibitory effect was PBC700 > PBC300 > CK. This mechanism mainly relies on the fact that pelletized biochar primarily increases the surface roughness of porous media to provide more adsorption sites, and in combination with π-π interactions and electrostatic forces, significantly inhibits the migration of eARGs. When salinity increased, the inhibitory effect of PBCs on eARGs was enhanced. This study provided theoretical support for the development of functional materials based on pelletized biochars to control the transport of eARGs in marine aquaculture sediments.
© The Authors, published by EDP Sciences, 2025
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