Modeling of Advanced Oxidation of Trace Organic Contaminants by Hydrogen Peroxide Photolysis and Fenton’s Reaction

Abstract

The kinetics of nonylphenol and p-cresol destruction by hydrogen peroxide photolysis and Fenton's reaction was investigated under a variety of operating conditions in homogeneous, laboratory-scale batch reactor experiments. Models with no adjustable parameters successfully accounted for radical initiation by photolysis of H 2 O 2 or radical initiation by Fenton's mechanism, reaction of organic targets with hydroxyl radical, and radical scavenging and recombination mechanisms, as well as changes in solution pH due to evolution of carbon dioxide because of target mineralization. Simulations of the UV/H 2 O 2 and Fenton-based models can be used to anticipate the kinetics of advanced oxidation involving any target compound for which there is a known apparent second-order rate constant for reaction with hydroxyl radical. The presence of radical scavengers was successfully treated by the model, suggesting that the model can be generalized to the treatment of complex matrixes.

A complete phenol oxidation pathway obtained during electro-Fenton treatment and validated by a kinetic model study

“…classical Fenton process [9][10][11][12][13][14][15][16], Fenton-like treatment [17][18][19] and photo-Fenton process [20][21][22]. However, only two papers refer to electro-Fenton process [23,24].…”

Green method of stemming the tide of invasive marine and freshwater organisms by natural filtration of shipping ballast water

“…In science and engineering, technology that has been developed and applied for another purpose can be used to solve other environmental or engineering problems which is considered to be an advancement and an innovation. An example of this concept is the development of advanced oxidation technology to treat industrial wastewater for reuse in manufacturing facilities (Rojas et al 2010 ). The process facilitated reuse of water and caused a reduction in the overall water consumption.…”

Optimisation of photo‐Fenton‐like degradation of aqueous polyacrylic acid using Box‐Behnken experimental design

“…The independent variables and their critical experimental levels as shown in Table 1 were chosen based on the preliminary experimental results and the values reported in the open literature. [34][35][36] In the RSM, as the initial step, an appropriate approximation which is generally a first-order model is applied to find the true functional relationship between the response function and the set of factors. However, in the first-order model, there is a lack of fit due to the existence of the surface curvature.…”