Biosorption of cadmium ions from simulated wastewater using rice husk was studied with initial concentration 25 mg/l. Equilibrium isotherm Langmuir, Freundlich, BET and Timken models. The results show that the Freundlich is best fit model to describe this process high determination coefficient equals 0.983. There a good compliance between experimental theoretical results. Highest removal effici...

INTRODUCTION Phenol and its derivatives are the most common poisonous compounds which are stable in aqueous media and lead to many health issues. In this study, application of the carbon resulted from pomegranate peel is investigated in removal of phenol by adsorption method. METHODS to perform this cross-sectional study, first, samples of phenol with concentrations of 10 to 100 mg/L were pre...

Aiming to investigate the efficacy of different materials as bio-sorbents for the purification of As-polluted waters, batch-type experiments were employed to study As(V) sorption and desorption on oak ash, pine bark, hemp waste, mussel shell, pyritic material, and soil samples, as a function of the As(V) concentration added. Pyritic material and oak ash showed high sorption (90% and >87%) and l...

Comparison analysis of linear least-square method and non-linear method of three widely used isotherms (Langmuir, Freundlich, and Redlich-Peterson) were examined to experiment with Remazol Red (C.I. 18221) onto pistachio nut shells at a solution temperature of 293 K. All three isotherm equations showed a better fit to the experimental equilibrium data. The results show that the Langmuir model s...