Abstract
The presence of norfloxacin antibiotic (NFX) in drinking water raises significant scientific concern due to the health and environmental problems that may cause. This study aimed to evaluate the NFX removal: 1) in batch adsorption at different pH values on montmorillonite (M) and montmorillonite-carbon hybrids (M-HC); 2) in continuous columns experiments, to assess the technological application of these hybrids as domestic filters, using one M-HC as adsorbent material ranging from 1% to 5%. Batch experiments showed that adsorption occurred in all the samples, being M the material with the highest adsorption capacity (95% of adsorption for cationic NFX). For the M-HC the adsorption seemed to be not strongly dependent of the pH (20%- 41% of adsorption). The characterization of adsorbents and NFX adsorption products (FTIR, XRD, and zeta potential analysis) disclosed that adsorption occurs at both the external surface and the interlayer space of M. For the M-HC synthesized without activation, the interlayer space seemed to be predominantly responsible; while for the activated M-HC the adsorption occurred at the external surface (its interlayer was destroyed). The column experiments revealed that the best adsorption capacity and highest flow were attained using 1% of adsorbent material in the column packing.
Sign-in/Register to access full text options 
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 callMore From: Journal of Environmental Science and Health, Part A
Disclaimer: 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.
