Kinetic studies for adsorption of anumber of food coloring dyes by using activated carbon

Abstract

The research included the application of some kinematic models to study the adsorption process, such as the pseudo-first order (Lacquerine) and the second false (Hood and Mickey) model, the wafer kinematic model and the implicit particle diffusion model, and then applying the experimental results of the adsorption process to some food dyes through which color is given to juices, soft drinks and pastries. And foodstuffs such as jams, medicines and others that bear the following codes: E110, E122, E102, E133, E123, E124 and E127. Commercial activated carbon was used as an adsorbent for these dyes, which constitute a very wide sector of important industries for humans everywhere in the world. The kinematic study is indicated by obtaining important information that helps in designing a simple and economical adsorption system in order to get rid of these pigments and treat them. After using different kinematic models, the study found the applicability of the experimental results of the adsorption of colored dyes of juices, foodstuffs and soft drinks to a second-order pseudo kinetic model. Obtain the constant adsorption velocity of those pigments with good and high linear relationship and match the practical values of adsorption capacity with the theoretical values, as well as the values of the initial velocity of adsorption.