Central Composite Design for Optimization of Chromium (VI) Removal from Aqueous Solution Using Low Cost Adsorbent

D. Krishna*, D.V. Padma**
*-** Department of Chemical Engineering M.V.G.R. College of Engineering, Vizianagaram, Andhra Pradesh, India
Periodicity:August - October'2015
DOI : https://doi.org/10.26634/jfet.11.1.3654

Abstract

Aim of the experiment is to find out the optimization of adsorption parameters such as initial chromium (VI) concentration (5-30 mg/l), pH (1-4), and adsorbent dosage (1-3 g/l) using Central Composite Design in response with surface methodology. A total of 19 experiments were conducted for the present investigation towards construction of empirical model. The optimum conditions for maximum removal of chromium from an aqueous solution of 20 mg/l were as follows: adsorbent dose (2.26806 g/l), pH (1.76296) and initial chromium concentration (24.99465 mg/l). The maximum percentage removal of chromium at an optimum adsorption parameter is 70.53756%. This method is used to find out the mathematical model for the percentage removal of chromium metal ion from waste water efficiently.

Keywords

Central Composite Face Centered Design (CCD), Ragi Husk Powder, Chromium (VI), Adsorption.

How to Cite this Article?

Krishna, D., and Padma, D.V. (2015). Central Composite Design for Optimization of Chromium (VI) Removal from Aqueous Solution Using Low Cost Adsorbent. i-manager’s Journal on Future Engineering and Technology, 11(1), 1-6. https://doi.org/10.26634/jfet.11.1.3654

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