NDLI: Experimental study of humic acid degradation and theoretical modelling of catalytic ozonation.

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A review of the direct and indirect effects of neonicotinoids and fipronil on vertebrate wildlife.

Risks of large-scale use of systemic insecticides to ecosystem functioning and services.

Experimental study of humic acid degradation and theoretical modelling of catalytic ozonation.

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In situ electrokinetic remediation of As-, Cu-, and Pb-contaminated paddy soil using hexagonal electrode configuration: a full scale study.

Phytoremediation of Pb, Zn, Fe, and Mg with 25 wetland plant species from a paper mill contaminated site in North East India.

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Conclusions of the Worldwide Integrated Assessment on the risks of neonicotinoids and fipronil to biodiversity and ecosystem functioning.

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Experimental study of humic acid degradation and theoretical modelling of catalytic ozonation.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Dimoglo, Anatoli Turkay, Ozge Inan, Hatice
Description	Author Affiliation: Turkay O ( Department of Environmental Engineering, Faculty of Engineering, Gebze Institute of Technology, 41400, Gebze, Kocaeli, Turkey, oturkay@gyte.edu.tr.)
Abstract	The efficiency of TiO2 as a catalyst in the ozonation of humic acid (HA) was evaluated in a comprehensive manner. Ozonation, catalytic ozonation and adsorption experiments were conducted using both synthetic HA solution and natural water. HA degradation was evaluated in terms of DOC, VIS400 and UV254. It was shown that the addition of catalyst positively affects the mechanism of ozonation. An increase in HA degradation was observed for all these parameters. The impact of catalyst dose and initial pH value of HA on the efficacy of catalytic ozonation was investigated. The highest removal efficiencies were achieved with the dose of 1 g l(-1) of TiO2 (Degussa P-25) and in the acidic pH region. The catalytic ozonation process was efficient also on natural water component although not at the same level as it was on synthetic water. The adsorptive feature of P-25 was considered to have a clear evidence of the catalytic ozonation mechanism. The mechanism of catalysis on the surface of metal oxides was elucidated with the help of quantum-chemical calculations. In the framework of Density Function Theory (DFT), the O3 decomposition was calculated in the catalytic and non-catalytic processes. Donor-acceptor properties of the frontier (highest occupied and lowest unoccupied molecular orbitals, HOMO/LUMO) orbitals are discussed. Electron density distribution and reaction mechanism of superoxide particles formation, which participate in the process of HA ozonation are analyzed.
ISSN	09441344
Issue Number	1
Volume Number	22
e-ISSN	16147499
Journal	Environmental Science and Pollution Research
Language	English
Publisher	Springer
Publisher Date	2015-01-01
Publisher Place	Germany
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Humic Substances Analysis Models, Chemical Ozone Chemistry Titanium Water Pollutants, Chemical Water Purification Methods Adsorption Catalysis Fresh Water Hydrogen-ion Concentration Nanoparticles Oxidation-reduction Journal Article Research Support, Non-u.s. Gov't Discipline Environmental Science Discipline Environmental Chemistry
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Health, Toxicology and Mutagenesis Pollution Medicine

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