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Research Paper | Chemistry | India | Volume 8 Issue 6, June 2019 | Rating: 4.9 / 10
Adsorption Capacity of Haematite as Adsorbent for Lead and Arsenic from Aqueous Solutions
Abstract: The present paper studied the feasibility of the adsorption capacity of Haematite for Pb (II) and As (III) from aqueous solutions. The effect of various operational parameters such as concentration, pH, temperature and contact time on the adsorption of Pb (II) and As (III) was investigated using batch adsorption experiments. It was found that Haematite can be used as a low cost adsorbent for the removal of heavy metals in aqueous solution containing low concentrations of the metals. The maximum ion adsorption capacities followed the trend Pb (II) > As (III) and the percentage adsorption was found to depend on the adsorbent dosage, solution pH, temperature and contact time. Kinetic treatment of the results gave a pseudo-second order type mechanism while the adsorption characteristics of the adsorbent followed the Freundlich adsorption isotherm.
Keywords: Adsorption, Haematite, Adsorption capacity, Aqueous solutions, Freundlich adsorption isotherm
Edition: Volume 8 Issue 6, June 2019,
Pages: 2410 - 2417