Modeling of Diafiltration Processes for Demineralization of Acid Whey: an Empirical Approach
Year: 2011
Type: article
Abstract: ABSTRACT In this paper, a mathematical model is provided to describe the dynamics of membrane diafiltration processes for desalting acid whey. A rich representation of the separation process is given due to the employment of concentration‐dependent solute rejections in the design equations. We propose an experimental design and a suitable empirical method for parameter estimation. This technique supports the disciplined use of experimental data and reduces the number of necessary a‐priori experiments. With the help of experimental data we demonstrate the power of the presented modeling method. PRACTICAL APPLICATIONS The annual volume of dairy whey produced globally exceeds 160 million tons. Demineralized whey is of large importance for the food industry. A suitable degree of demineralization can be achieved by diafiltration. Whey represents a complex multi‐component system. Modeling of nanofiltration of such complex systems is a difficult task. We provide a rigorous mathematical model to predict the dynamics of whey diafiltration. The presented robust simulation technique is able to predict the experimentally observed behavior. We propose a minimal experimental design and a suitable mathematical tool to convert the raw experimental data into useful information. The provided methodology might be particularly applicable for decision makers to choose an appropriate diafiltration technique for a given separation design problem.
Authors: A. Román, Gy. Vatai, A. Ittzés, Z. Kovács, P. Czermak
Language: English
Subfield: Water Science and Technology
Field: Environmental Science
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W1962777020