The efficiency of Zn (II) removal from aqueous solutions was investigated using Sphagnum moss peat as adsorbent. A 23 full factorial central orthogonal design was carried out in order to achieve the best conditions of the sorption of Zn (II) on peat. The combined effect of initial concentration of Zn (II) in aqueous solution (C0, mg/L), peat dose (G, g/L) and pH was studied and optimized using Response Surface Methodology (RSM). The optimum values

Equilibrium and kinetics of sorption of Zn (II) ions from aqueous solutions of pH 5 on indigene (Romanian) peat moss were investigated in batch system. The experimental equilibrium sorption data at three temperatures were analysed by Freundlich, Langmuir, Tempkin and Dubinin-Radushkevich sorption isotherm models. Results indicate the following order in to fit the isotherm equations: Langmuir > Tempkin > Dubinin-Radushkevich > Freundlich. The equilibrium

In recent years the removal of toxic substances especially heavy metals from water and wastewater by using of non-conventional low-cost sorbents (industrial wastes and some natural material including microorganisms, plant-derived materials, agricultural products and by-products, mineral oxides, clays) has received much attention. In this paper efficiency of Zn (II) removal from aqueous solutions by sorption onto Romanian sphagnum moss peat was studied