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Aggregation kinetics of manganese dioxide colloids in aqueous solution: influence of humic substances and biomacromolecules.
TLDR
The steric repulsive forces, originated from organic layers adsorbed on MnO2 colloidal surfaces, may be mainly responsible for their stabilizing effects, however, the complexes formed by alginate and Ca(2+) (>5 mM) might play a bridging role and thus enhanced MnO 2 colloidal aggregation instead. Expand
Production of sulfate radical and hydroxyl radical by reaction of ozone with peroxymonosulfate: a novel advanced oxidation process.
TLDR
It is demonstrated that the reaction between the anion of PMS and O3 is primarily responsible for driving O3 consumption with a measured second order rate constant of (2.12 ± 0.03) × 10(4) M(-1) s(-1). Expand
Degradation of atrazine by UV/chlorine: Efficiency, influencing factors, and products.
TLDR
It was found that the degradation efficiency of atrazine was enhanced by UV/chlorine compared to UV or chlorine alone, and was favorable at a lower pH, but was inhibited in the presence of natural organic matters. Expand
Oxidation of triclosan by permanganate (Mn(VII)): importance of ligands and in situ formed manganese oxides.
TLDR
The effectiveness of Mn(VII) for the oxidative removal of triclosan in natural water and wastewater was confirmed and several other selected ligands also exerted oxidation enhancement, supporting a scenario where highly active aqueous manganese intermediates formed in situ upon Mn( VII) reduction might be stabilized to a certain extent in the presence of ligands. Expand
Activation of Peroxymonosulfate by Benzoquinone: A Novel Nonradical Oxidation Process.
TLDR
Findings have important implications for the development of novel nonradical oxidation processes based on PMS, because 1O2 as a moderately reactive electrophile may suffer less interference from background organic matters compared with nonselective •OH and SO4•-. Expand
Oxidation of phenolic endocrine disrupting chemicals by potassium permanganate in synthetic and real waters.
TLDR
The background matrices of real waters as well as selected model ligands including phosphate, pyrophosphate, NTA, and humic acid were found to accelerate the oxidation dynamics of these EDCs by Mn(VII), which was explained by the effect of in situ formed dissolved Mn(III), which could readily oxidize these EDC but would disproportionate spontaneously without stabilizing agents. Expand
Conjugated Linoleic Acid in Swedish dairy products with special reference to the manufacture of hard cheeses
Abstract In this study, the concentration of conjugated linoleic acid (CLA), a natural potential anticarcinogen, in different commercial Swedish dairy products, i.e. two types of pasteurized milk,Expand
Oxidation of sulfoxides and arsenic(III) in corrosion of nanoscale zero valent iron by oxygen: evidence against ferryl ions (Fe(IV)) as active intermediates in Fenton reaction.
TLDR
It was shown that Fe(IV) species could react with sulfoxides through a 2-electron transfer step producing corresponding sulfones, which markedly differed from their HO(•)-involved products, highlighting the importance of the heterogeneous iron surface reactions for As(III) oxidation at circumneutral pH. Expand
Oxidation of flame retardant tetrabromobisphenol a by aqueous permanganate: reaction kinetics, brominated products, and pathways.
TLDR
It is important to better understand the reactivity and toxicity of primary brominated products before Mn(VII) can be applied for treatment of TBrBPA-contaminated wastewater and source water. Expand
Degradation of sulfamethoxazole by UV, UV/H2O2 and UV/persulfate (PDS): Formation of oxidation products and effect of bicarbonate.
TLDR
Ecotoxicity of transformation products was estimated by ECOSAR program based on the quantitative structure-activity relationship analysis as well as by experiments using Vibrio fischeri, and results indicated that the oxidation of SO4- or CO3- with SMX generated more toxic products than those of OH. Expand
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