Kinetic study of acid red “dye” removal by activated carbon and hyper-cross-linked polymeric sorbents Macronet Hypersol MN200 and MN300

Pore and surface diffusivities were calculated using a heterogeneous model. Hyper-cross-linked polymers reported a double contribution (pore and surface) to the overall diffusion process meanwhile GAC coefficients indicate a surface diffusion as the controlling mechanism.