This study presents the neural network modeling of monochlorotriazinyl- B-cyclodextrin (MCT-B-CD) grafting on paper supports. Neural networks are very efficient in predicting the evolution of a process, providing a good approximation ot the studied grafting process, further used for the interpolation and extrapolation of the results beyond the experimental range. The grafting was realized by a pad-dry-cure treatment and the mathematical model has

This paper presents an experimental study on the removal of Indigo Carmine dye from aqueous solutions using a batch stirred electrocoagulation reactor. The experimental tests were carried out in a discontinuous system provided with steel electrodes. The main purpose was to investigate the effects of the operating parameters, such as pH, initial concentration, electrolysis duration, current density, and electrolyte support concentration, on the treatment

This paper proposes a genetic algorithm and a neural network based procedure to estimate the optimal conditions for a dyestuff wastewater treatment process consisting of a heterogeneous photocatalytic oxidation. A simulated dyestuff effluent containing the azo dye Reactive Black 5 is decolorized by a photocatalytic reaction using TiO2 P-25 as catalyst in the presence of Fe+3 and H2O2. A simple feed forward neural network with one hidden layer was

Theoretical and experimental studies of gas drying processes by adsorption in fixed bed of grains are presented in this paper. Based on an extensive literature study, some of the most representative mathematical models describing gas adsorption in fixed bed and consequently gas drying processes by adsorption in fixed bed are also presented. Using a mathematical model from those mentioned describing adsorption under isotherm regime, the temperature

An experimental study of mass transfer-limited anodic dissolution of copper in solutions of sulphuric acid and copper sulphate using the rotating disc electrode technique is presented. Linear and cyclic voltammograms of electrochemical systems consisting of copper discs (2.5 mm) and aqueous solutions of copper sulphate (0.025÷0.6M) and sulphuric acid (0.5÷1.85M) at different rotational speeds of copper RDE (200÷2200RPM), and temperature (25÷45

Voltammetric characterization of Copper and Aluminum behavior in concentrated aqueous solutions of phosphoric acid was performed using the rotating disc electrode (RDE) technique. The linear sweep and cyclic voltammetry (LSV and, respectively, CV) of copper and aluminum in concentrated aqueous solutions of phosphoric acid were presented. The measured limiting current densities were subjected to Levich analyses, demonstrating that water and, respectively,

The experimental design methodology was applied for response surface modeling and optimization of the photocatalytic decolorization of a simulated dyestuff effluent (SDE), containing the azo dye Reactive Black 5 (RB5) as colorant. The variables considered were the initial concentration of TiO2, Fe3+ and H2O2. The multivariate experimental design allowed developing a quadratic model as a functional relationship between color removal efficiency and