BiFeO₃ particles (BFO) were prepared by a simple hydrothermal method and characterized. BFO was pure, with a wide particle size distribution, and was visible light responsive. Tetracycline was chosen as the model pollutant in this study. The pH value was an important factor influencing the degradation efficiency. The total organic carbon (TOC) measurement was emphasized as a potential standard ...

Munitions wastes such as TNT are widespread contaminants in soils and ground waters. We investigated a coupled abiotic-biotic treatment scheme for remediation of aqueous solutions of TNT. Mineralization of aqueous TNT (0.22 mM) was initially optimized with minimum reactant use (Fe3+ and H2O2) in light-assisted and dark, modified Fenton reactions at acidic and neutral pH. Complete TNT degradatio...

The summarized new advances and proposed research directions in this perspective can provide in-depth insights for the application/mechanism investigation of DAC-mediated Fenton/Fenton-like reactions.

—A view of software measurement that disagrees with the model presented in a recent paper by Kitchenham, Pfleeger, and Fenton, is given. Whereas Kitchenham, Pfleeger, and Fenton argue that properties used to define measures should not constrain the scale type of measures, we contend that that is an inappropriate restriction. In addition, a misinterpretation of Weyuker's properties is noted.

USING CENTRAL COMPOSITE EXPERIMENTAL DESIGN TO OPTIMIZE THE DEGRADATION OF REAL DYE WASTEWATER BY FENTON AND PHOTO-FENTON REACTIONS Francesc Torrades* and Julia García-Montaño (1) Departament d’Enginyeria Química, ETSEIA de Terrassa, Universitat Politècnica de Catalunya, C/Colom 11, E-08222, Terrassa (Barcelona) Spain. (2) LEITAT Technological Center, Environment R&D Department, C/Innovació, 2,...

Advanced oxidation processes (AOPs) based on oxidants have attracted attention for the degradation of organic pollutants. The combination chalcopyrite with such as persulfate, peroxide, percarbonate, and others shows promise a system due to its ability activate through various pathways, leading formation numerous radical non-radical species. In this review, generation sulfate (SR) hydroxyl (HR)...

Iron can be a detrimental catalyst in biological free radical oxidations. Because of the high physiological ratio of [O2]/[H2O2] (> or = 10(3)), we hypothesize that the Fenton reaction with pre-existing H2O2 is only a minor initiator of free radical oxidations and that the major initiators of biological free radical oxidations are the oxidizing species formed by the reaction of Fe2+ with dioxyg...

A highly selective, ultrasensitive (visual and instrumental detection limits of 40 nM and 0.1 nM, respectively), environmentally-friendly, simple and rapid colorimetric sensor was developed for the detection of copper(II) in water. This sensor is based on a novel signal-amplification mechanism involving reactive halide species (RHSs) including chlorides or bromides, which accelerate copper Fent...

A composite of nano-zerovalent iron (nZVI) supported on granular activated carbon (GAC) was synthesizedthrough adsorption-reduction method, and its performances used as catalyst of Fenton-like were investigated to degrade methylene blue (MB) in model wastewater.Theresults show thathomogeneous dispersion of nZVI was greatly improved after supported on GAC. In comparison, the composite (nZVI/GAC)...