نتایج جستجو برای: heterogeneous fenton

تعداد نتایج: 128889  

Journal: :Catalysts 2023

The development of novel approaches to the remotion pharmaceuticals in wastewater is a subject concern due their effect on living beings and environment. Advanced oxidation processes use relevant catalysts are feasible treatment alternatives that require further development. suitable heterogeneous necessity. This work proposes synthesis an iron catalyst deep eutectic solvent (Fe-DES) composed c...

2016

The homogeneous Fenton reaction is a complex chemical system that involves hydrogen peroxide and dissolved iron salts to generate highly reactive hydroxyl radicals in acidic solution. It is also known that the degradation rate of the Fenton system is significantly enhanced when the mixture is irradiated with UV or UV/Visible radiation. This photo-assisted Fenton process, or photo-Fenton process...

2001
Anna GOI Marina TRAPIDO

Several advanced oxidation processes such as hydrogen peroxide photolysis, the Fenton treatment, photo-Fenton treatment, and ozonation combined with hydrogen peroxide and UVradiation for the destruction of 2,4-dinitrophenol were studied. Advanced oxidation processes, especially the Fenton treatment, were found to be effective for the degradation of 2,4-dinitrophenol and removal of toxicity. Acc...

Journal: :Journal of environmental science and health. Part. B, Pesticides, food contaminants, and agricultural wastes 2006
Ayrton Figueiredo Martins Danielle Marranquiel Henriques Marcelo Luis Wilde Tibiriçá Gonçalves Vasconcelos

The treatment of an effluent from the production of trifluraline was studied using a 1-L, semi-batch, tank-stirred glass reactor for performing three different advanced oxidation processes (photoperoxidation, Fenton, photo-Fenton). A commercial, medium-pressure mercury lamp was used for sample irradiation. The degradation was monitored by measurements of absorptiometric color reduction, UV-visi...

Journal: :Environmental technology 2015
Francesc Torrades José Antonio García-Hortal Julia García-Montaño

This study focused on the advanced oxidation of the hetero bi-functional reactive dye Sumifix Supra Yellow 3RF (CI Reactive Yellow 145) using dark Fenton and photo-Fenton conditions in a lab-scale experiment. A 2(3) factorial design was used to evaluate the effects of the three key factors: temperature, Fe(II) and H2O2 concentrations, for a dye concentration of 250 mg L(-1) with chemical oxygen...

Journal: :تحقیقات نظام سلامت 0
شاهین بهزادی گروه مهندسی محیط زیست – آب و فاضلاب، دانشگاه آزاد اسلامی واحد علوم و تحقیقات خوزستان، خوزستان، ایران منصوره دهقانی گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی شیراز، فارس، ایران محمد صادق سخاوتجو گروه مهندسی محیط زیست – آب و فاضلاب، دانشگاه آزاد اسلامی واحد علوم و تحقیقات خوزستان، خوزستان، ایران حسن هاشمی مربی، گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی شهرکرد، شهرکرد، ایران

and cause health and environmental effects. this study investigates the optimization of the parameters affecting the advanced oxidation process fenton for improving toc removal from aqueous solution includes amoxicillin antibiotic by using taguchi experimental design. methods: in this study for evaluation the effect of factors and determination optimal conditions to removal toc by fenton proces...

2012
Almudena Aguinaco Olga Gimeno Fernando J. Beltrán Juan José P. Sagasti C Fenton

A sequential treatment of ozonation followed by a Fenton or photo-Fenton process, using black light lamps (365 nm) in this latter case, has been applied to remove a mixture of pharmaceutical compounds and the generated by-products both in ultrapure and secondary treated wastewater. The scientifictechnological innovation of this study stems from the in situ generation of hydrogen peroxide from t...

2012
Youssef Samet Emna Hmani Ridha Abdelhédi

The degradation of chlorpyrifos in water by Fenton (H2O2/Fe 2+) and solar photo-Fenton (H2O2/Fe 2+/solar light) processes was investigated. A laboratory-scale reactor was designed to evaluate and select the optimal oxidation condition. The degradation rate is strongly dependent on pH, temperature, H2O2 dosing rate, and initial concentrations of the insecticide and Fe 2+. The kinetics of organic...

Journal: :Environmental science and pollution research international 2015
E Yamal-Turbay E Ortega L O Conte M Graells H D Mansilla O M Alfano M Pérez-Moya

An experimental study of the homogeneous Fenton and photo-Fenton degradation of 4-amidophenol (paracetamol, PCT) is presented. For all the operation conditions evaluated, PCT degradation is efficiently attained by both Fenton and photo-Fenton processes. Also, photonic efficiencies of PCT degradation and mineralization are determined under different experimental conditions, characterizing the in...

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