Author(s)

Sareh Vafakhah^*, Mohammad E. Bahrololoom, Mohsen Saeedikhani

Department of Materials Science and Engineering, Shiraz University, Shiraz, Iran.

The water crisis is an increasingly severe global problem that may be reduced by reusing wastewater after suitable treatment methods. Nowadays, biosorption is one of the main parts of environmental technology which could adsorb heavy metals. This paper describes the adsorption of Copper(II) ions from aqueous solution using a mixture of corn stalk and tomato waste which were oxidized with nitric acid. Kinetic and isotherm studies were carried out by studying the effects of parameters such as concentration dosage, time and pH. It was found that the maximum sorption capacity of the mixture of modified corn stalk and modified tomato waste (q_m = 25 mg/g) was higher than the modified corn stalk (q_m = 20.8 mg/g). Analysis indicated that pseudo-second-order kinetics controlled the adsorption rate and it has been proposed to correlate the experimental data well.

Corn Stalk, Tomato Waste, Biosorption, Copper Ions Removal

Vafakhah, S. , Bahrololoom, M. and Saeedikhani, M. (2016) Adsorption Kinetics of Cupric Ions on Mixture of Modified Corn Stalk and Modified Tomato Waste. Journal of Water Resource and Protection, 8, 1238-1250. doi: 10.4236/jwarp.2016.813095.