Cumulative contamination of aquatic sources with large number of contaminants is not only threatening the aquatic biota but creating a worldwide shortage of recreational waters. Toxic heavy metals are considered as major pollutants that have direct effect on human health and animals. Third world countries are at high risk of water contamination due to lack of waste water treatment technologies. This study, therefore, investigates the potential ability of Methylglycinediacetic acid modified pods of Peltophorum pterocarpum (PpMGDA) to remove cadmium from aqueous solution. The influence of experimental parameters such as pH, contact time, temperature, adsorbent dose, agitation rate and initial cadmium ion concentration were optimized using batch systems. The biosorption mechanism of PpMGD Abiosorbent was well described by Langmuir isotherm (R2 = 1) and a pseudo second order kineticmodel (R2 = 0.9986), with a high regression coefficient. Thermodynamic study revealed that the biosorption of Cd(II) by using PpMGDA was endothermic, spontaneous and proceeded with increased randomness.
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2022: 6.012
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