Table of Contents
ISRN Chemical Engineering
Volume 2013, Article ID 765896, 6 pages
Research Article

Application of Mathematica Software to Solve Pulp Washing Model

1Department of Applied Sciences, BGIET, Sangrur, 148001 Punjab, India
2Department of Mathematics, SLIET, Longowal, 148106 Punjab, India

Received 29 August 2013; Accepted 9 October 2013

Academic Editors: J. J. Rodriguez and A. M. Seayad

Copyright © 2013 Jitender Kumar et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The removal of the bulk liquor surrounding the pulp fibers using less concentrated liquor is known as pulp washing. In the present study, a pulp washing model involving diffusion-dispersion through packed beds of finite length is presented. Separation of variables is applied to solve system of governing partial differential equations and the resulting equations are solved using Mathematica. Results from the present case are compared with those of previous investigators. The present case is giving better results than the previous investigators.