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Bromate formation during ozonation of bromide-containing natural waters is somewhat inversely connected to the ozone characteristics: an initial fast increase followed by a slower formation rate. During the initial phase mostly OH radical reactions contrib ...
The mechanism of the oxygen redn. reaction (orr) was studied in alk. media at La0.6Ca0.4CoO3-activated carbon electrodes in a channel flow cell (CFC). The electrodes were made by depositing a mixt. of the perovskite (La0.6Ca0.4CoO3) powder as the catalyst, ...
Kinetic simulations have been tested by laboratory experiments to evaluate the major factors controlling bromate formation during ozonation of waters containing bromide. In the presence of an organic scavenger for OH radicals, bromate formation can be accu ...
Free hydroxyl radicals (free . OH), singlet oxygen (O-1(2)), or . OH produced by DNA-copper-hydroperoxo complexes are possible DNA-damaging reactive oxygen species (ROS) in the reaction system containing copper, catechol, and DNA. para-Chlorobenzoic acid ( ...
Benzoporphyrin deriv. monoacid ring A [BPD-MA (I)], a chlorin-type mol., is a new photosensitizer currently in phase II clin. trials for the treatment by photodynamic therapy of cancerous lesions, psoriasis and pathol. neovascularization. The photochem. (t ...
The influence of an IrO2 interlayer between the Ti substrate and the SnO2-Sb2O5 coating on the electrode service life and on the efficiency of p-chlorophenol (p-CP) oxidn. for wastewater treatment has been investigated. The results have shown that if the l ...
The authors have studied the electrochem. oxidn. of H2SO4 on B-doped synthetic diamond electrodes (BDD) obtained by hot filament CVD on p-Si. High current efficiency for H2SO4 oxidn. to peroxodisulfuric acid can be achieved in concd. H2SO4 (>2M) at moderat ...
In this paper, the fate of iron in Lake Cristallina, an acidic lake in the Alps of Switzerland, is discussed. A simple conceptual model is developed in order to explain the observed diel variation in dissolved iron(II) concentration. Biotite weathering pro ...
The influence of an IrO2 interlayer between the Ti substrate and the SnO2-Sb2O5 coating on the electrode service life and on the efficiency of p-chlorophenol (p-CP) oxidn. for wastewater treatment has been investigated. The results have shown that if the l ...
