Adsorption and recovery of hexavalent chromium from tannery wastewater over magnetic max phase composite. Issue 3 (11th February 2021)

• Record Type: Journal Article
• Authors: Ullah, Rahman; Ahmad, Waqas; Ahmad, Imtiaz; Khan, Mansoor; Iqbal Khattak, Mehmood; Hussain, Fida
• Is Part Of: Separation science and technology. Volume 56:Issue 3(2021)
• Page Start: 439
• Page End: 452
• Publication Date: 2021-02-11
• Subjects: Hexavalent Chromium -- magnetic adsorbent -- max phase -- tannery wastewater Treatment -- recovery; Separation (Technology) -- Periodicals; 660.284205
• DOI: 10.1080/01496395.2020.1717531
• Languages: English
• ISSNs: 0149-6395

Abstract

ABSTRACT: Magnetic max phase composite (MNPs- Ti3 AlC2 ) was synthesized in the laboratory and used for the adsorption and recovery of hexavalent chromium from Tannery wastewater. Maximum adsorption of Cr (IV), about 99% was found to occur at pH 3, 100 mg adsorbent dose for 30 mL sample and 5 min vortex time in presence of various competing ions. About 98 ± 1 % of Cr (IV) was easily recovered from the adsorbent surface by alkaline leaching. The adsorption process was found to bespontaneous, endothermic, and followed pseudo second order kinetics. Longmuir and Freundlich isotherms models were also applied to the adsorption data.