Isfahan University of Medical Sciences

Science Communicator Platform

Stay connected! Follow us on X network (Twitter):
Share this content! On (X network) By
Catalytic Oxidation of Hydrogen Peroxide and the Adsorption Combinatory Process in Leachate Waste Pretreatment From Composting Factory



Karimi B1 ; Ehrampoush MH2 ; Ebrahimi A2 ; Mokhtari M2 ; Amin MM3
Authors
Show Affiliations
Authors Affiliations
  1. 1. Departments of Environmental Health Engineering, School of Health, Arak University of Medical Sciences, Arak, Iran
  2. 2. Department of Environmental Health Engineering, School of Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
  3. 3. Environment Research Center, Isfahan University of Medical Sciences, Isfahan, Iran

Source: International Journal of Environmental Health Engineering Published:2012

Abstract

Aims: The purpose of this study was to use a combinational process of catalytic oxidation of hydrogen peroxide (CWPO) and activated carbon for improving the removal efficiency of organic matter. Materials and Methods: The effect of the operational parameters such as residence time (30 90 minutes), reaction temperature (100 300 C) in the pressure 10 bar, and catalytic iron concentration were investigated. The effect of the catalytic method, catalytic wet peroxide oxidation (CWPO), along with the absorption process, on granular activated carbon (GAC), powdered activated carbon (PAC), PAC/Cl2, and GAC/Fe were considered; oxygen is used to supply pressure and H2O2 is applied as the main oxidant in various concentrations. Results: The removal efficiency of the chemical oxygen demand (COD) was over 35%, obtained in one hour of retention time, with the wet air oxidation (WAO) process, and the removal efficiencies of GAC, PAC, and PAC/Cl2, at a temperature of 300 C, and activated carbon concentration of 2 g/l, were 43.4, 38.9, and 33.6%, respectively. Conclusion: These results indicate that the reaction temperature, residence time, and H2O2 dose are the most important factors affecting the degradation of organic matter. The GAC/Fe catalyst process had a higher efficiency than other absorbents for organic matter oxidation. © 2012 Medknow. All Rights Reserved.
Experts (# of related papers)
Other Related Docs
27. Nickel (Ii) Removal From Industrial Plating Effluent by Fenton Process, Environmental Engineering and Management Journal (2015)
28. Activated Carbon Production From Rdf and Its Use for Dioxin Removal From Flue Gas of Waste Incinerators, International Journal of Environmental Health Engineering (2012)
29. Use of a Uv/H2o2 Process for Posttreatment of a Biologically Treated Composting Leachate, Turkish Journal of Engineering and Environmental Sciences (2014)