نتایج جستجو برای: fenton reagents concentration

تعداد نتایج: 408775  

Journal: :Journal of environmental management 2017
Paola Villegas-Guzman Javier Silva-Agredo Oscar Florez Ana L Giraldo-Aguirre Cesar Pulgarin Ricardo A Torres-Palma

To provide new insights toward the selection of the most suitable AOP for isoxazolyl penicillins elimination, the degradation of dicloxacillin, a isoxazolyl penicillin model, was studied using different advanced oxidation processes (AOPs): ultrasound (US), photo-Fenton (UV/H2O2/Fe2+) and TiO2 photocatalysis (UV/TiO2). Although all processes achieved total removal of the antibiotic and antimicro...

Journal: :The Biochemical journal 1984
J M Gutteridge

The stimulatory effect of ferrous salts on the peroxidation of phospholipids can be enhanced by EDTA when the concentration of Fe2+ in the reaction is greater than that of EDTA. Hydroxyl-radical scavengers do not inhibit peroxidation until the concentrations of Fe2+ and EDTA in the reaction are equal. Lipid peroxidation is then substantially initiated by hydroxyl radicals derived from a Fenton-...

Journal: :health scope 0
hossein jafari mansoorian health promotion research center, zahedan university of medical sciences, zahedan, ir iran; health promotion research center, zahedan university of medical sciences, zahedan, ir iran. tel: +98-918813385, fax: +98-5413425837 edris bazrafshan health promotion research center, zahedan university of medical sciences, zahedan, ir iran ahmadreza yari research center for environmental pollutants, qom university of medical sciences, qom, ir iran mostafa alizadeh students scientific research center, zahedan university of medical sciences, zahedan, ir iran

background fenton (fe2+ and h2o2) and modified fenton (fe3+ and h2o2) are two popular methods used in advanced oxidation processes (aop) and degradation of persistent organic pollutants (pops), such as dye compounds. in these processes, fe2+ and fe3+ as catalysts and h2o2 as the oxidizing agent are added to the reactor. objectives the aim of the current study is to assess the abovementioned met...

2014
Mansooreh Dehghani Esmaeel Shahsavani Mahdi Farzadkia Mohammad Reza Samaei

BACKGROUND In recent years, pollution of soil and groundwater caused by fuel leakage from old underground storage tanks, oil extraction process, refineries, fuel distribution terminals, improper disposal and also spills during transferring has been reported. Diesel fuel has created many problems for water resources. The main objectives of this research were focused on assessing the feasibility ...

Journal: :Water research 2011
Vítor J P Vilar Elisangela M R Rocha Francisco S Mota Amélia Fonseca Isabel Saraiva Rui A R Boaventura

A solar photo-Fenton process combined with a biological nitrification and denitrification system is proposed for the decontamination of a landfill leachate in a pilot plant using photocatalytic (4.16 m(2) of Compound Parabolic Collectors - CPCs) and biological systems (immobilized biomass reactor). The optimum iron concentration for the photo-Fenton reaction of the leachate is 60 mg Fe(2+) L(-1...

Journal: :Bioscience, biotechnology, and biochemistry 2010
Tomoe Komoriya Maho Kikuchi Yutaka Terashima Mayumi Okamoto Masahiro Ogawa Mituhiko Moriyama Hideki Kohno

C-Reactive protein (CRP) is an acute-phase protein that increases during systemic inflammation and is currently one of the most frequently studied inflammatory markers in epidemiology. We have determined CRP concentration using novel latex reagent with polyclonal antibody. In the present study, we determined the concentration of CRP using monoclonal antibodies, and evaluated the interaction of ...

ژورنال: سلامت و محیط زیست 2014
رحمانی, علی رضا, شعبانلو, امیر, مهر علی پور, جمال,

Background and Objective: Electrochemical methods as one of the advanced oxidation processes (AOPs), have been applied effectively to degrade recalcitrant organics in aqueous solutions. In the present work, the performance of electro-Fenton (EF) method using iron electrodes on the degradation of phenol was studied. Materials and Methods: In this study, a lab-scale EF batch reactor equipped with...

Journal: :Jurnal Bahan Alam Terbarukan 2022

Distillery wastewater from the bioethanol industry contains a high level of organic content which can be converted into biogas. However, presence toxic compounds in this could inhibit biogas production. Therefore, prior detoxification distillery is required. Fenton, one Advanced Oxidation Process (AOP) methods, was selected due to its performance degrade pollutants, short reaction time, and pro...

2014
Alexandre Augusto Borghi Laura Oliveira-Nascimento Marco Antônio Stephano Paula Monteiro de Souza Attilio Converti Mauri Sérgio Alves Palma

This study aims at determining the Minimum Inhibitory Concentration with Escherichia coli ATCC 25922 and cytotoxicity to L929 cells (ATCC CCL-1) of the waste generated by doxycycline degradation by the Fenton process. This process has shown promise in this treatment thanks mainly to the fact that the waste did not show any relevant inhibitory effect on the test organism and no cytotoxicity to L...

2015
Dongdong Wang Wuxia Zhang Tingting Wang Na Li Haibo Mu Jiwen Zhang Jinyou Duan Iolanda Francolini

In this study, 2-(N-pyrrolidine-alkyl) tanshinones bearing pyrrolidine groups were synthesized and the antibacterial mechanism was explored. These derivatives selectively elicited antibacterial activity against Gram-positive bacteria. Moreover, their antibacterial activities were time-, concentration-dependent and persistent. It appeared that Fenton-mediated hydroxyl radicals were involved, and...

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