Abstract
In this work, the sorbent behavior of vermiculite to remove copper from industrial leachate was studied in batch experimental system. The effect of initial pH (3, 6, and 8), adsorbent dosage (2, 6, and 10g/L), and contact time (5, 20, and 60min) on the removal of heavy metals was investigated. At first stage, one-factor-at-a-time experiments were performed to see the individual effects of initial pH, adsorbent dosage, and contact time. The statistical solutions are implemented to decide which one of them is most suitable for adsorption studies. To study the two factor interactions, response surface modeling (RSM) based on Box–Behnken (BB) approach, factorial D-optimal design and Taguchi methods are. The adsorption kinetic models were also tested for the validity. The second order model with the high correlation coefficients best described adsorption kinetic data. Lagergreen first order, Elovich, and the pseudo-second order kinetic model are employed to optimized levels of the analyzed factors. Finally, the removal of Cu(II) using vermiculite reached at 96.87%, at the optimum level of 8 initial pH, 10g/L of adsorbent dosage, and 10min of contact time. Taguchi design was found to be appropriate on account of time-consuming and cost-effectiveness.
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 the Taiwan Institute of Chemical Engineers
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.
