Abstract
This study deals with the removal of antibiotics from contaminated water and milk using pristine and modified activated carbons (ACs) from various biomass sources. Pristine ACs exhibited good removal efficiency (RE) for various antibiotics from aqueous solutions and milk. To further enhance adsorption performance, a wood powdered activated carbon (WPAC) was modified by oxidation with H2O2 under shaking (SK), ultrasonication (US) and microwave (MW) heating, as well as MW calcination. As a result, US- and MW-assisted modifications lead to significantly higher adsorption performance for marbofloxacin (MAR) than pristine WPAC. An extended characterization was carried out on pristine and modified ACs to find structure-adsorption capability relationships and the results showed that the adsorption performance was promoted by the presence of newly formed/converted oxygen-containing functional groups upon modification. These groups rule the adsorption mechanism and the modifications allow adsorbent consumption and treatment costs to be greatly reduced, while providing similar adsorption performance. In particular, the removal of low concentration antibiotics from milk using ACs modified under MW-assisted calcination is efficient, economical and convenient, despite the presence of competition adsorption by impurities. In summary, adsorption using modified ACs is a highly promising technique for the decontamination of antibiotic-polluted water and milk.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
