A diffusion model of bath washing extraction of a porous material and an evaluation of its conformity with the real process

Abstract

In this paper, the focus is on the definition of the mathematical conditions needed to ensure that the presented diffusion model of the extraction of a bound biopolymer impurity into the wash liquid during the bath-washing process of that porous material will be in satisfactory accordance with the real washing process from a certain calculated time. The numerical computation of the space-time volume concentration field course in the porous material by means of a diffusion model, which is mentioned in the contribution, is very helpful for the optimization of the washing processes in the chemical and tanning industries.