نتایج جستجو برای: fenton process

تعداد نتایج: 1314770  

2005
K. Barbusiński

A novel modified Fenton process using heterogeneous catalyst (swarf) was developed to catalyze the oxidation reaction of azo dye Acid Red 18. It was found that swarf could be used to replace iron salts as a catalyst for the Fenton reaction. The examined continuous Fenton process proved to be very efficient for decolorization of simulated wastewater containing 100 mg/dm3 Acid Red 18. Performance...

2014
Milena Becelic-Tomin Bozo Dalmacija Ljiljana Rajic Dragana Tomasevic Djurdja Kerkez Malcolm Watson Miljana Prica

Pyrite ash (PA) is created by burning pyrite in the chemical production of sulphuric acid. The high concentration of iron oxide, mostly hematite, present in pyrite ash, gives the basis for its application as a source of catalytic iron in a modified Fenton process for anthraquinone dye reactive blue 4 (RB4) degradation. The effect of various operating variables such as catalyst and oxidant conce...

2015
Gong Cheng Jing Lin Jian Lu Xi Zhao Zhengqing Cai Jie Fu

The photo-Fenton reaction is a promising method to treat organic contaminants in water. In this paper, a Fenton reagent enhanced by microwave electrodeless ultraviolet (MWEUV/Fenton) method was proposed for advanced treatment of nonbiodegradable organic substance in pesticide-containing biotreated wastewater. MWEUV lamp was found to be more effective for chemical oxygen demand (COD) removal tha...

2015
Rajaa Idel-aouad Manuel Valiente Carmen Gutiérrez-Bouzán Mercè Vilaseca Abdlrani Yaacoubi Boumediene Tanouti Montserrat López-Mesas

Fenton and Fenton-like processes, both in homogeneous and heterogeneous phases, have been applied to an aqueous solution containing the dye AR 14 in order to study the mineralization and toxicity of the solutions generated after color elimination. The mineralization of AR 14 occurred slower than the decolorization. The Microtox analysis of the treated solutions showed low toxicity intrinsic to ...

Journal: :jundishapur journal of health sciences 0
mansooreh dehghani research center for health sciences, department of environmental health engineering, school of health, shiraz university of medical sciences, shiraz, ir iran maryam mosleheyan department of environmental health engineering, school of health, student research committee, shiraz university of medical sciences, shiraz, ir iran samaneh karimiyan department of environmental health engineering, school of health, student research committee, shiraz university of medical sciences, shiraz, ir iran zahra faramarzi department of environmental health engineering, school of health, student research committee, shiraz university of medical sciences, shiraz, ir iran marziye ansari department of environmental health engineering, school of health, student research committee, shiraz university of medical sciences, shiraz, ir iran narges shamsedini department of environmental health engineering, school of health, student research committee, shiraz university of medical sciences, shiraz, ir iran; department of environmental health engineering, school of health, student research committee, shiraz university of medical sciences, shiraz, ir iran. tel: +71-37251003, fax: +71-37250226

background textile dyes are the largest organic compounds associated with some problems for the environment. advanced oxidation process is the most effective method for dye removal from wastewater. objectives the aim of this study was to investigate the efficiency of the photo fenton process for decolorization of direct red 81 (dr 81) dye, and to determine the optimal process conditions. method...

Esrafili , Behnaz , Jalilzadeh Yengejeh , Reza ,

Background and objective: The wastewater discharged from textile industries is one of the main environmental pollutants that causes many problems for the environment if it is not treated or discharged. The present study compared Fenton oxidation process with coagulation and flocculation using the natural coagulant of Sodium Alginate in order to remove Reactive Red 198 Dye. Materials and method...

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: :iranian journal of chemistry and chemical engineering 0
kamran taghavi department of environmental health engineering, school of health, guilan university of medical sciences, 3391 rasht, i.r. iran saeid purkareim department of environmental health engineering, school of health, guilan university of medical sciences, 3391 rasht, i.r. iran alireza pendashteh the caspian sea basin research centre, university of guilan, 4199613776 rasht, i.r. iran naz chaibakhsh department of chemistry, faculty of science, university of guilan, 41335-19141 rasht, i.r. iran

this study investigates the degradation of sodium dodecylbenzenesulfonate (sdbs) in aqueous solution by the fenton-like oxidation process. the effects of different parameters such as concentrations of ferric chloride and hydrogen peroxide, ph and reaction time on the sdbs removal and chemical oxygen demand (cod) reduction were evaluated. response surface methodology (rsm) with central composite...

Journal: :iranian journal of oil & gas science and technology 2016
zahra heidari mohsen motevasel nemat allah jaafarzadeh

pentachlorophenol (pcp) is a very hazardous compound which enters into the environment byindustries such as refineries and petrochemicals. as its biological degradation is very slow, this usemay cause the pollution of soils and groundwater; with the recent emergence of pentachlorophenolcontamination as an important drinking water quality issue, finding an easy, economical, and usefulmethod to r...

2014
Sondos Dbira Ahmed Bedoui Nasr Bensalah

In this work, the degradation of 2-chloro-4,6-diamino-1,3,5-triazine in aqueous solutions by photo-Fenton process has been investigated. The preliminary results have shown that the degradation of 2-chloro-4,6-diamino-1,3,5-triazine by photo-Fenton process is more rapid and more effective than Fenton and UV/H2O2 processes. The effects of certain experimental parameters on kinetics and efficiency...

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