Preparation of Thermo-Modified Tea waste and Its Use to Study the Heavy Metal Adsorption from Waste Water

Journal Title: IOSR Journal of Applied Chemistry (IOSR-JAC) - Year 2018, Vol 11, Issue 7

Abstract

Heavy metals in particular are a group of pollutants of major concern in the aquatic environment due to their toxicity. The need to find an inexpensive and effective method for heavy metals abatement from water becomes inevitable. Adsorption is very effectively used technique for this purpose but cost is an important parameter and the types of adsorbents conventionally used are expensive. This work aims to evaluate the adsorption of some heavy metals on waste tea leaves as a cheap purification method. In this experimental study, thermo modified prepared waste tea leaves are used as adsorbent for the removal of heavy metals from aqueous solutions. Adsorption experiments were carried out as batch studies at different contact time, pH, amount of adsorbent, initial metal concentration and temperature. The objective of this study is to use the tea waste as a low cost adsorbent for the removal of metal concentration in various waste waters of industry effluents etc. The effect of variation in different parameters was investigated. The adsorbent is very effective for lower concentration of metal solutions, and the absorbance increases with increase in adsorbent dose. As this adsorbent is cheap and easily available, it can be used in little excess amount to obtain higher percentage of metal removal. A comparative study of the removal efficiency for Pb, Ni, Cd has been done. The kinetic data obtained have been analyzed using pseudo-first-order and pseudo-second-order models. The best fitted kinetic model was found and the results suggest that tea wastes could be employed as a cheap material for the removal of these heavy metals from aqueous solutions.

Authors and Affiliations

Akshay Sahu, Dr. Jayati Chatterjee Mitra

Keywords

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  • EP ID EP414336
  • DOI 10.9790/5736-1107024046
  • Views 175
  • Downloads 0

How To Cite

Akshay Sahu, Dr. Jayati Chatterjee Mitra (2018). Preparation of Thermo-Modified Tea waste and Its Use to Study the Heavy Metal Adsorption from Waste Water. IOSR Journal of Applied Chemistry (IOSR-JAC), 11(7), 40-46. https://europub.co.uk./articles/-A-414336