Aqueous Media Arsenic (V) Removal by Using Iron Oxide-Coated Ignimbrite Article Swipe
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· 2024
· Open Access
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· DOI: https://doi.org/10.20944/preprints202411.1718.v1
· OA: W4404707951
Arsenate As (V) is a toxic aquifer/underground water element with a high potential to harm humans. Adequate treatment of arsenic-contaminated water is vital to ensure public health. The present investigation describes As (V) removal by iron oxide-coated in batch experiments at dif-ferent levels of adsorbent amount, contaminated solution initial concentration, contact time, and system temperature. Different As (V) initial concentrations showed that adsorption in the Langmuir isotherm model has a higher correlation coefficient (R2 = 0.99) than the Freundlich model (R2 = 0.73). According to the Langmuir model, the maximum adsorption capacity was 4.84 mg∙g-1 of As (V) after 2 h exposure with 0.15 g/50 mL iron oxide coated ignimbrite adsorbent concentration. Likewise, a pseudo-first-order model kinetic study was more adequate in de-scribing the adsorption process at As (V) concentration of 15 mg∙g-1 by using 0.15 g / 50 mL ad-sorbent concentration at 283 K, 293 K, and 303 K. Observed results in the batch experiments in-dicate that iron oxide-coated ignimbrite is a potential adsorbent for reducing high concentrations of As (V) in contaminated water.
