Volume No. 13 Issue No.: 03 Page No.: 226-235 January-March 2019

 

A STUDY OF STARCH NANOMATERIAL AS ADSOR-BENT IN REMOVAL OF HEAVY METALS FROM AQUEOUS MEDIUM

 

Sharma H. K.*, Bilal Ahmad, Sofi I. R. and Rambaboo

School of Studies in Environmnetal Science, Jiwaji University Gwalior (INDIA)

 

Received on : September 29, 2018

 

ABSTRACT

 

In the present world the threat of heavy metal pollution is a worldwide grave concern due to its toxicity, bioaccumulation, and non-degradability. Therefore, this research work was aimed at to prepare the nanomaterial of starch and to assess its adsorption efficiency for the efficient removal of nickel metal ions from aqueous solution. Effect of various environmental parameters like contact time, initial metal concentration, adsorbent dose, and pH of solution were studied for the adsorption of nickel ions using batch adsorption technique. The experimental results concluded that better adsorption efficiency was obtained at 120 minutes of contact time and it was also observed that adsorption depends upon concentration of metal ions and adsorbent dose. The maximum removal of nickel ions onto the surface of starch nanomaterial were observed at pH 6 with maximum removal of 89.167%. The Langmuir adsorption isotherm model was found to be the best fit model in the present study.

 

Keywords : Heavy metals, Pollution, Starch nanomaterial, Toxicity, Adsorption isotherm

 

 

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