Modeling of bound component white hide deliming

Abstract

Many technological processes are characterized by large consumption of water, electrical energy and auxiliary chemicals. No even the tanning industry is the exception. The contemporary worldwide trend is an application of the cleaner production principles, which means to take the line of savings and minimization of waste production. It is necessary to deal with the optimization of processes. Within the optimization of the white hide deliming operation, both plain washing with pure water and chemical processing are concerned. The main goal is to give the answer to when it is suitable to interrupt the washing with pure water (non-chemical deliming) and replace it by washing with a deliming agent water solution (chemical deliming). Our paper, with the use of a mathematical-physical process model, gives the answer to the above mentioned question. The effective diffusion coefficients are presented. The above mentioned parameters, economical and technological serve as input data for a computer program and the proposal of automatics control algorithm.