scholarly journals Potential of Ceria-Based Catalysts for the Oxidation of Landfill Leachate by Heterogeneous Fenton Process

2016 ◽  
pp. 195-216 ◽  
Keyword(s):  
Landfill Leachate ◽  
Fenton Process ◽  
Heterogeneous Fenton

scholarly journals Potential of Ceria-Based Catalysts for the Oxidation of Landfill Leachate by Heterogeneous Fenton Process

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
E. Aneggi ◽  
V. Cabbai ◽  
A. Trovarelli ◽  
D. Goi
Keyword(s):  
Solid Solutions ◽  
Landfill Leachate ◽  
Oxygen Demand ◽  
Doped Ceria ◽  
Fenton Process ◽  
Heterogeneous Fenton ◽  
Batch System ◽  
Iron Doped ◽  
Before And After ◽  
Pure Ceria

In this study, ceria and ceria-zirconia solid solutions were tested as catalyst for the treatment of landfill leachate with a Fenton-like process. The catalysts considered in this work were pure ceria and ceria-zirconia solid solutions as well as iron-doped samples. All the catalysts were extensively characterized and applied in batch Fenton-like reactions by a close batch system, the COD (chemical oxygen demand) and TOC (total organic carbon) parameters were carried out before and after the treatments in order to assay oxidative abatement. Results show a measurable improvement of the TOC and COD abatement using ceria-based catalysts in Fenton-like process and the best result was achieved for iron-doped ceria-zirconia solid solution. Our outcomes point out that heterogeneous Fenton technique could be effectively used for the treatment of landfill leachate and it is worth to be the object of further investigations.

Chemical safety assessment of transformation products of landfill leachate formed during the Fenton process

2021 ◽  
pp. 126438
Author(s):  
Luana de Morais e Silva ◽  
Vinicius M. Alves ◽  
Edilma R.B. Dantas ◽  
Luciana Scotti ◽  
Wilton Silva Lopes ◽  
...  
Keyword(s):  
Landfill Leachate ◽  
Safety Assessment ◽  
Transformation Products ◽  
Fenton Process ◽  
Chemical Safety

The use of steel slags in the heterogeneous Fenton process for decreasing the chemical oxygen demand of oil refinery wastewater

2018 ◽  
Vol 78 (5) ◽  
pp. 1159-1167 ◽  
Author(s):  
Behnam Heidari ◽  
Mohsen Soleimani ◽  
Nourollah Mirghaffari
Keyword(s):  
Microwave Irradiation ◽  
Chemical Oxygen Demand ◽  
Steel Slag ◽  
Oxygen Demand ◽  
Oil Refinery ◽  
Fenton Process ◽  
Refinery Wastewater ◽  
Optimum Conditions ◽  
Heterogeneous Fenton ◽  
Oil Refinery Wastewater

Abstract The Fenton process is a useful and inexpensive type of advanced oxidation process for industrial wastewater treatment. This study was performed with the aim of using the steel slag as a catalyst in the heterogeneous Fenton process in order to reduce the chemical oxygen demand (COD) of oil refinery wastewater. The effects of various parameters including the reaction time (0.5, 1.0, 2.0, 3.0 and 4.0 h), pH (2.0, 3.0, 4.0, 5.0, 6.0 and 7.0), the concentration of steel slag (12.5, 25.0 and 37.5 g/L), and H2O2 concentration (100, 250, 400 and 500 mg/L) on the Fenton process were investigated. Furthermore, the effect of microwave irradiation on the process efficiency was studied by considering the optimum conditions of the mentioned parameters. The results showed that using 25.0 g/L of steel slag and 250 mg/L H2O2, at pH = 3.0, could reduce COD by up to 64% after 2.0 h. Also, microwave irradiation decreased the time of the process from 120 min to 25 min in the optimum conditions, but it consumed a high amount of energy. It could be concluded that steel slags had a high potential in the treatment of oil refinery wastewater through the Fenton process.

scholarly journals Heterogeneous fenton process using the mineral hematite for the discolouration of a reactive dye solution

2011 ◽  
Vol 28 (4) ◽  
pp. 605-616 ◽  
Author(s):  
F. V. F. Araujo ◽  
L. Yokoyama ◽  
L. A. C. Teixeira ◽  
J. C. Campos
Keyword(s):  
Reactive Dye ◽  
Fenton Process ◽  
Heterogeneous Fenton
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