نتایج جستجو برای: fenton reagents concentration

تعداد نتایج: 408775  

Journal: :Separation and Purification Technology 2023

The degradation and mineralization of the drug norfloxacin (NFX) has been assessed in a model solution, containing 15 mM NaCl +45 Na2SO4 at pH 3.0, using flow plant with an FM01-LC filter-press reactor equipped Ti|Ir-Sn-Ru oxides anode to electrogenerate HClO from Cl− oxidation stainless-steel cathode. Unexpectedly, anodic active chlorine (AO-HClO) outperformed electro-Fenton (EF-HClO), photoel...

2013
L. Zhang

The leaching reaction kinetics of weathered crust elution-deposited rare earth with mixed ammonium salts was studied. The in uence of concentration of reagents and particle size of ore on leaching rate was investigated. The results showed that the di usion process and leaching rate could be improved by increasing reagents concentration and decreasing leaching owing rate and particle size. The l...

ژورنال: سلامت و محیط زیست 2009
تکدستان, افشین, فرخی, مهرداد, موسوی, غلامرضا, کوتی, محسن,

Backgrounds and Objectives: Leachate is one of the landfill products and also a wastewaterbearing the most advers effects on the environment. Biological methods are usually employed for treatment of young leachate (1-2 years) wich is of high concentration of organic compounds with low molecular weight. However these methods are not approprate for mature leachate (5-10years) due to having high r...

Aref Shokri,

Background & Aims of the Study: One of the most carcinogenic and toxic pollutants is p-Nitro Cresol. In this study, the degradation and mineralization of p-Nitro Cresol in aqueous solution were investigated by Fenton process in a batch reactor. Materials & Methods: This study is an experimental research on a laboratory scale. The study executed on synthetic wastewater hav...

Journal: :Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering 2009
Ying-Shih Ma Mathava Kumar Jih-Gaw Lin

In this study, the Fenton process was applied for the degradation of carbofuran from aqueous system. Batch experiments were conducted at two different carbofuran concentrations i.e., 10 and 50 mg/L, and at pH 3. Batch experiments at each carbofuran concentration were designed by central composite design (CCD) with two independent variables i.e. Fe2+ and H2O2. Experimental results indicate that ...

2013
Mohamed Gar Alalm Ahmed Tawfik

Assessment the efficiency of Fenton process (Fe 2+ /H2O2), versus photo-Fenton reaction (TiO2/Fe 2+ /H2O2/UV) for removal of Chloropyrifos, and COD from pesticide wastewater were investigated. Solar compound parabolic collectors (CPC) pilot scale with borosilicate tubes was used for photo-Fenton process. The effect of reaction time, initial pH and dosage of H2O2, FeSO4, TiO2 were studied for bo...

2015
Ying Li Fangmin Li Fanxiu Li Fuqian Yuan Pingfang Wei

The effects of ultrasonic irradiation, the chelating agent modified Fenton reaction, and a combination of ultrasound and the Fenton method in removing petroleum contaminants from a soil were studied. The results showed that the contaminant removal rate of the Fenton treatment combined with an oxalic acid chelating agent was 55.6% higher than that without a chelating agent. The average removal r...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی خواجه نصیرالدین طوسی - دانشکده علوم 1391

abstract in the present research solution of chalcopyrite in sulfuric acid in hydrometallurgy method using electrochemistry with cyclic voltammetry technique has been investigated. the value of maximum reduction peak current of copper ions represents the measure of solubility. in this research different parameters temperature, potential, potential exert time, chalcopyrite concentration, sulfur...

Journal: :Journal of environmental sciences 2010
Fei Feng Zhenliang Xu Xiaohuan Li Wenting You Yang Zhen

The performance of combined Fenton oxidation and membrane bioreactor (MBR) process for the advanced treatment of an effluent from an integrated dyeing wastewater treatment plant was evaluated. The experimental results revealed that under the optimum Fenton oxidation conditions (initial pH 5, H2O2 dosage 17 mmol/L, and Fe2+ 1.7 mmol/L) the average total organic carbon (TOC) and color removal rat...

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