نتایج جستجو برای: fenton reagent

تعداد نتایج: 20466  

Journal: :Catalysts 2021

The oxidation of aqueous solutions carbamazepine is conducted using the Fenton reagent, combined with photolytic action a 150 W medium pressure UV lamp, operating at T = 40 °C. effect acidity analysed an interval pH 2.0–5.0, verifying that 5.0 promotes colour formation (Colour 0.15 AU). iron studied, finding water increases in linear way, Colour 0.05 + 0.0075 [Fe]0. oxidising hydrogen peroxide ...

ژورنال: سلامت و محیط زیست 2014
جنیدی جعفری, احمد, نبی زاده, رامین, ندافی, کاظم, کولیوند, علی, یونسیان, مسعود,

Background & Objectives: Remaining crude oil in storage tanks lead to accumulation of oily sludge at the bottom of the tank, which should be treated and disposed of in a suitable manner. The aim of the present study was to investigate the efficiency of chemical oxidation using H2O2 and Fenton’s reagent in removal of Total Petroleum Hydrocarbons (TPH) from bottom sludge of crude oil storage tank...

Journal: :محیط شناسی 0
گاگیک بدلیانس قلی کندی دانشیار مهندسی محیط زیست، آب و فاضلاب، دانشگاه شهید بهشتی، پردیس فنی- مهندسی شهید عباسپور مینا نیلی اردکانی کارشناس ارشد مهندسی عمران، آب و فاضلاب، دانشگاه شهید بهشتی، پردیس فنی- مهندسی شهید عباسپور،

introduction activated sludge process is one of the most common methods used in wastewater treatment plants. regarding the large volume of sludge obtained from such biological wastewater treatment processes and considerable costs of its treatment and disposal, extensive research has been and is being done on novel effective methods of sludge stabilization. in previous investigations research gr...

Journal: :Applied and environmental microbiology 2013
Premsagar Korripally Vitaliy I Timokhin Carl J Houtman Michael D Mozuch Kenneth E Hammel

Basidiomycetes that cause brown rot of wood are essential biomass recyclers in coniferous forest ecosystems and a major cause of failure in wooden structures. Recent work indicates that distinct lineages of brown rot fungi have arisen independently from ligninolytic white rot ancestors via loss of lignocellulolytic enzymes. Brown rot thus proceeds without significant lignin removal, apparently ...

Jyoti Sharma Kiran Chanderia Rakshit Ameta Noopur Ameta Pinki B. Punjabi,

The heterogeneous photo-Fenton degradation of crystal violet under visible light has been investigated usingcopper modified iron oxide. The photocatalyst has been prepared by coprecipitation method. The rate ofphotocatalyic degradation of dye was monitored spectrophotometrically. It has been observed thatphotocatalytic degradation follows pseudo first order kinetics. The effect of various param...

Journal: :Drug metabolism and disposition: the biological fate of chemicals 2006
Monica I Jushchyshyn Jan L Wahlstrom Paul F Hollenberg Larry C Wienkers

The mechanism behind the observed inactivation of human P450 2B6 by phencyclidine (PCP) has been evaluated over the past 2 decades. The scope of the current investigation was to contribute to the fundamental knowledge of PCP oxidation and perhaps the mechanism behind P450 inactivation. To study the chemistry of PCP oxidation, we subjected PCP to the Fenton reagent. Under Fenton chemistry condit...

2008
António Bernardino de Almeida

The aim of this work was to study the possibility of treating an industrial semiconductor wastewater by combining physical and chemical methods. The combined treatment consisted of pH adjustment to 2 followed by filtration and then chemical oxidation with Fenton reagent over the resulting filtered wastewater. In chemical oxidation treatment, the isolated effect of the variables on the degradati...

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2008
Vladimír Chobot Lenka Kubicová Samar Nabbout Ludek Jahodár Franz Hadacek

The antioxidant activity of ethanol extracts of Atrichum undulatum, Polytrichum formosum (Polytrichaceae), Pleurozium schreberi (Entodontaceae) and Thuidium tamariscinum (Thuidiaceae) was evaluated by an electrochemical method (cyclic voltammetry) and standard photometric methods: Fe(III) to Fe(II) reducing power, nitric oxide scavenging (NO) assay and simulation of Fenton-type reaction by nons...

2014
Carolina Gil-Lozano Elisabeth Losa-Adams Alfonso F.-Dávila Luis Gago-Duport

The Fenton reaction is the most widely used advanced oxidation process (AOP) for wastewater treatment. This study reports on the use of pyrite nanoparticles and microparticles as Fenton reagents for the oxidative degradation of copper phthalocyanine (CuPc) as a representative contaminant. Upon oxidative dissolution in water, pyrite (FeS2) particles can generate H2O2 at their surface while simul...

Journal: :Environmental technology 2004
A Aris P N Sharratt

This study investigates the effect of mixing intensity and reagents addition strategy on Fenton's reagent degrading a common reactive diazo type dyestuff, Reactive Black 5. Within the experimental conditions used in the study, the effect of mixing intensity on TOC removal was observed to be both significant and complex. Using factorial analysis, it was found that if the reagents are added near ...

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