European Journal of Biomedical and Pharmaceutical Sciences

THE EFFECTIVE REMOVAL OF CU(II), CD(II) AND PB(II) IONS FROM AQUEOUS SOLUTION BY USING LOW COST INDUSTRIAL ADSORBENT LIKE CHINA CLAY

Radhey Shyam* and Surekha Kannaujia

ABSTRACT

In this paper, we take adsorbent, with low cost and high-efficiency adsorption of Cu(II), Cd(II) and Pb (II) from aqueous solution. For well- known adsorption of heavy metals by China clay, data were placed in the Langmuir and Freundlich isotherms models. Adsorption of heavy metals by China clay under the effect of pH, adsorbent dosage and concentration were studied. Langmuir isotherm shows better fit for heavy metals adsorption than the Freundlich isotherm. Under specified conditions, maximum single metal adsorption capacities of the China clay (qmax) for Cu(II), Cd(II) and Pb (II)) were 77.76, 76.16 and 191.93 mg/g, under Langmuir model equations. Adsorption kinetic data fitted well with pseudo-second-order kinetic model (R² ≤ 0.9996, 0.9995 and 0.9878) for Cu(II), Cd(II) and Pb (II) loaded on China clay.

Keywords: Adsorption Isotherm, China Clay, Heavy metals etc.