Comparative investigation on biosorption studies for removal of Pb (II) from aqueous solution using banana peels powder and orange peels powder

This study focuses on understanding biosorption with an objective of exploring low-cost adsorbents using chemically activated banana and orange peels powder for removal of Pb (II) ions from the aqueous solution. The impacts of several environmental factors like pH, adsorbent dose, contact time and metal ion concentration have been analysed on the adsorption behaviour of the adsorbents. The activated adsorbents were characterised by Fourier transform infrared spectroscopy (FTIR). The effects of various parameters such as adsorbent dosages, contact duration, pH and metal ion concentration were investigated with help of batch experiment method. Various isotherm models were employed to analyse and to interpret the experimental data. Among these, the Langmuir isotherm models were the most accurate in describing the adsorption behaviour of both adsorbents. This research would be significant because continuous research and development efforts are essential for improving the effectiveness of heavy metals adsorption process by banana and orange peels.