Logo

Multiple responses analysis and modeling of Fenton process for treatment of high strength landfill leachate

Mohajeri, S. and Aziz, H.A. and Zahed, M.A. and Mohajeri, L. and Bashir, M.J.K. and Aziz, S.Q. and Adlan , M.N. and Isa, M.H. (2011) Multiple responses analysis and modeling of Fenton process for treatment of high strength landfill leachate. [Citation Index Journal]

[img]
Preview
PDF
77Kb

Abstract

Landfill leachate is one of the most recalcitrant wastes for biotreatment and can be considered a potential source of contamination to surface and groundwater ecosystems. In the present study, Fenton oxidation was employed for degradation of stabilized landfill leachate. Response surface methodology was applied to analyze, model and optimize the process parameters, i.e. pH and reaction time as well as the initial concentrations of hydrogen peroxide and ferrous ion. Analysis of variance showed that good coefficients of determination were obtained (R2 >0.99), thus ensuring satisfactory agreement of the second-order regression model with the experimental data. The results indicated that, pH and its quadratic effects were the main factors influencing Fenton oxidation. Furthermore, antagonistic effects between pH and other variables were observed. The optimum H2O2 concentration, Fe(II) concentration, pH and reaction time were 0.033 mol/L, 0.011 mol/L, 3 and 145 min, respectively, with 58.3% COD, 79.0% color and 82.1% iron removals.

Item Type:Citation Index Journal
Uncontrolled Keywords:advanced oxidation processes, fenton, response surface methodology, semi-aerobic landfill leachate
Subjects:T Technology > TD Environmental technology. Sanitary engineering
Academic Subject One:Academic Department - Civil Engineering - Water and environment - Environmental - Wastewater treatment
Academic Subject Two:Academic Department - Civil Engineering - Water and environment - Environmental - Solid waste
Academic Subject Three:Academic Department - Civil Engineering - Water and environment - Environmental - Hazardous waste
Departments / MOR / COE:Departments > Civil Engineering
ID Code:10761
Deposited By: Assoc Prof Dr Mohamed Hasnain Isa
Deposited On:16 Dec 2013 23:48
Last Modified:16 Dec 2013 23:48

Repository Staff Only: item control page

Document Downloads

More statistics for this item...