Reaction network and kinetic modeling of wet oxidation of phenol catalyzed by activated carbon

Kinetic and wet oxidation of phenol catalyzed by non-promoted and potassium-promoted manganese/cerium oxide

“…The load of the catalyst and the increase of pH favor phenol degradation. The results obtained experimentally show that the loss of activity of the catalyst is fast, requiring doping with other metals (Ag, Pt, Ru, in spite of the decrease in the degradation rate; Hamoudi et al [11]) or even to test other catalysts, for example, CuO/ZnO/CoO [12], CuCeO x [13,14], Cu/MCM-41 [15], Fe/activated carbon [16] and activated carbon [17], in order to impair the deactivation process. The kinetic study of the catalytic wet phenol oxidation revealed that the macroscopic model, composed by two parallel stages comprising total oxidation to CO 2 and partial oxidation to refractory constituents (stage-limiting), is well adjusted to the experimental data, accurately and satisfactorily describing the concentration profiles of the total organic carbon obtained at the temperature of 130 • C.…”

Abatement of phenolic mixtures by catalytic wet oxidation enhanced by Fenton's pretreatment: Effect of H2O2 dosage and temperature

“…In the case of phenolic pollutants, it has been deduced from results in literature that higher mineralization of phenols is obtained in the CWO [34][35][36] than that obtained by using the Fenton reagents [15,37]. On the contrary, the abatement of the initial phenolic pollutants is quicker if the Fenton reagent is used, even at low dosages of hydrogen peroxide.…”

Enhancement of mineralization ability for phenol via synergetic effect of photoelectrocatalysis of g-C3N4 film

“…So it is one of the priority pollutants to be monitored and controlled due to highly toxic and a strong irritant [1]. Traditional methods for the treatment of phenolic wastewater, such as extraction [2], biological treatment [3,4], chemical oxidation [5][6][7], photocatalytic or electrochemical catalytic oxidation [8][9][10][11][12] have some shortcomings more or less: large energy consumption, incomplete degradation, low mineralization, or high probability of causing secondary pollution. New treatment methods for phenolic wastewater have become an urgent goal for environmental protection workers.…”