In this study, batch experiments were carried out to study the adsorption of Malachite green dye from aqueous solution by Mangifera indica (mango) seed kernel powder. The mango seed kernel powder was characterized by Fourier transform infrared spectroscopy and scanning electron microscopy. Effect of various parameters including pH, contact time, adsorbent dosage, initial dye concentration and temperature on adsorption capacity of the adsorbent was observed and the optimized condition for maximum dye removal was identified. Maximum percentage removal of 96% was achieved with an adsorption capacity of 22.8 mg/g at pH 6 with an initial concentration of 100 mg/l. The equilibrium data were examined to fit the Langmuir and Freundlich isotherm models. Thermodynamic parameters for the adsorption process were also calculated. © 2017, The Institution of Engineers (India).

Shantha Kumar S

Department of Environmental and Water Resources Engineering

School of Civil Engineering

Vellore Campus

Singh D

Sowmya V

Abinandan S

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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VIT University

Journal of The Institution of Engineers (India): Series A

In this study, Mangifera Indica (mango) seed kernel powder was used as an adsorbent for chromium(VI) removal. The interactive effects between the process variables such as pH, temperature, adsorbent concentration, chromium concentration, and stirring speed (RPM) on chromium(VI) removal have been studied. In order to optimize the process, the experiments were designed using central composite design under response surface methodology by MINITAB 16.0 software. Based on the study, the optimum conditions for maximum removal of chromium(VI) from synthetic solution were obtained as: pH 1, temperature 27.5°C, adsorbent concentration 3.5 g/L, chromium concentration 100 ppm, and RPM 75. The statistical analysis of the data shows that experiments are statistically significant with a regression coefficient (R2) value of 0.95. © 2013 Balaban Desalination Publications. All rights reserved.

Desalination and Water Treatment

Process optimization for Cr(VI) removal byMangifera Indicaseed powder: a response surface methodology approach

Arabian Journal of Chemistry

Removal of malachite green dye from aqueous solution with adsorption technique using Limonia acidissima (wood apple) shell as low cost adsorbent

Adsorption of malachite green from aqueous solutions onto lotus leaf: equilibrium, kinetic, and thermodynamic studies

Applied Surface Science

Study of malachite green adsorption by organically modified clay using a batch method

Journal of Hazardous Materials

Polyacrylonitrile/polypyrrole core/shell nanofiber mat for the removal of hexavalent chromium from aqueous solution

Removal of Malachite Green Dye by Mangifera indica Seed Kernel Powder

Journal	Data powered by TypesetJournal of The Institution of Engineers (India): Series A
Publisher	Data powered by TypesetSpringer Science and Business Media LLC
ISSN	2250-2149
Open Access	0