Optimizing Operating Conditions for Advanced Treatment of Landfill Leachate Using the Coagulation-Fenton Oxidation Method

Bu, Guanghui; Xian, Peng; Zhan, Longhui; Feng, Xiaojuan; Tang, Haifang

doi:10.15244/pjoes/63067

Cited by 3 publications

(1 citation statement)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…An increase in the H 2 O 2 dose results in better effects of the contaminant oxidation process, but too high a dose of H 2 O 2 in relation to the substrate may cause the • OH radical binding by H 2 O 2 . Hydrogen peroxide is harmful to many organisms, which is of significance if the Fenton process is carried out prior to biological treatment [12,17,18]. The unused portion of hydrogen peroxide results in an overvaluation of the COD being determined (in a reaction with strong oxidants e.g.…”

Section: Introductionmentioning

confidence: 99%

Fenton Process Optimization with Landfill Leachate in Janczyce as an Example

Muszyńska¹,

Bąk²,

Górski³

et al. 2021

Pol. J. Environ. Stud.

View full text Add to dashboard Cite

One of the advanced oxidation methods is the Fenton's reaction which uses a mixture of iron(II) and hydrogen peroxide to generate hydroxyl radicals. The Fenton process efficiency is influenced by a number of factors including the pH, the Fe 2+ :H 2 O 2 relation or the Fe 2+ dose. The aim of the study was to optimize the Fenton method in the application for landfill leachate treatment, with the landfill in Janczyce (Świętokrzyskie Voivodeship) as an example. The sequence of determining the most advantageous conditions for the use of Fenton's reagent was as follows: A -the pH effect; B -the oxidation time effect; C -the Fe 2+ :H 2 O 2 relation effect; D -the Fe 2+ dose effect. The optimum catalyst/oxidant ratio of 0.125 was determined. The optimum process time of 90 minutes was determined. It was demonstrated that the Fenton process can be effectively carried out already at the pH of 4. A reduction by 75% for the TOC and by 89% for the COD, respectively, was obtained.

show abstract

Section: Introductionmentioning

confidence: 99%