Due to the fact that we assist to a continuously increasing concentration of heavy metals in waters, it imposes to take concrete and efficient measures at the level of the pollution from the different types of industry, laboratories. Removal of heavy metals from the residual waters constitutes an important aspect that requires efficient and, preferable, reusable sorbents. Novel macroporous composite sorbents were used in this work consisting of a combination between the chitosan (CS) and a synthetic polycation, poly(vinyl amine) (PVAm). The effect of different parameters such as: contact time, initial concentration of solutions, sorbent mass, pH value and temperature on the adsorption capacity of the sorbents was investigated. The sorption kinetics data were well described by pseudo-first order kinetic model, and the sorption equilibrium data were well fitted by the Sips, Langmuir and Temkin isotherms. The positive values of enthalpy confirmed the endothermic nature of the adsorption and the negative values of Gibbs free energy suggested the spontaneity of the adsorption process. As a result of desorption studies, it was found that the recovery of sorbent can be successfully done using a solution of NaOH 0.1 M.