Optimization for Fenton Process in Removal of COD for Landfill Leachate Treatment

María, Santin-Gusman; Moreno-Andrés, Javier; Mónica, Cisneros-Abad; Silvio, Aguilar-Ramírez

doi:10.7763/ijesd.2015.v6.722

Cited by 7 publications

(4 citation statements)

References 23 publications

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“…Deng 34 (240 mM; CODo=1100-1300 mg L -1 ) and Wu et al 40 (240 mM; CODo=5780 mg L -1 ), higher than those found by Lopez et al 37 (97 mM; CODo=10540 mgL -1 ) and Santin-Gusman et al 57 (9,17 mM; CODo=2296 mg L -1 ) and lower than Moravia et al 48 (470 mM; CODo=2834 mg L -1 ) and Badawy et al 39 (653mM; CODo=13650 mg L -1 ).…”

Section: The Point Of Saturation Obtained In This Work Is Close To Thmentioning

confidence: 60%

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Performance of Fenton process for the removal of recalcitrant organics from landfill leachate after nitrification / Desempenho do processo Fenton para remoção de orgânicos recalcitrantes de lixiviado do aterro sanitário após a nitrificação

Rodrigues¹,

Pescim²,

Lopes³

2021

BJDV

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The Fenton's process was evaluated for mature leachate treatment, after the biological one, by means of an experimental design divided into three steps: analyzes of the factors separately to establish values ranges; evaluation of significant factors and their interactions by a fractional factorial design; and analyzes of factors by a Central Composite Design (CCD). Performance results were measured by removal efficiency of the chemical organic demand (COD) and color. Four factors were considered: [H2O2], [H2O2]/[Fe2+], pH, and addition mode of reagents. The removal achieved were 88 (COD) and 99% (color) for: [H2O2] = 480 mM (6.02 mg H2O2 mgCOD -1 ); [H2O2]/[Fe 2+ ] =6 (1.65 mg Fe 2+ mgCOD -1 ); pH=3.5, and reagents dosages divided into three stages. For the range evaluated, the [H2O2] had the greatest influence in the COD and color removal. The models established for COD and color removal were able to explain 86.7 and 80.3% of the variance around the average. Alkalinity concentration and the characteristics of the leachate used may interfere in the Fenton efficiency, so should be the focus of further research. The addition of the reagents shared in fractions was not significant in the treatment, however, it is recommended for system operation, avoiding foam formation. In the biological treatment for nitrogen removal from landfill leachate, there is high alkalinity consumption, therefore, when one used before Fenton's process, it helps to reduce the pH. This and the possibility of applying Fenton's process at circum-neutral

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Section: The Point Of Saturation Obtained In This Work Is Close To Thmentioning

confidence: 60%

“…Mostly, the results were obtained by factors analysis separately, one-factor-at-a-time, and hence do not consider the interaction between them. Only in the last decade was it possible to observe the application of factorial analysis 31,38,40,45,46,48,49,53,54,55,56,57,58,59 .…”

mentioning

confidence: 99%

Performance of Fenton process for the removal of recalcitrant organics from landfill leachate after nitrification / Desempenho do processo Fenton para remoção de orgânicos recalcitrantes de lixiviado do aterro sanitário após a nitrificação

Rodrigues¹,

Pescim²,

Lopes³

2021

BJDV

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“…The compound commonly used in several studies as a supplier of ferrous ions (Fe 2+ ) for the Fenton process is ferrous sulfate heptahydrate (FeSO 4 •7H 2 O) [46][47][48].…”

Section: Fementioning

confidence: 99%

Application of advanced oxidation processes for domestic and industrial wastewater treatment

Rubén Bracamontes-Ruelas,

Rafael Irigoyen-Campuzano,

Arturo Torres-Castañon

et al. 2024

Wastewater Treatment - Past and Future Perspectives [Working Title]

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Domestic and industrial wastewaters are complex matrices that contain a large variety of pollutants. Consequently, the conventional processes at wastewater treatment plants (WWTPs) cannot remove these. These pollutants remain in the effluent and are discharged into different environmental compartments worldwide, generating a range of negative impacts on the environment and human health. In this chapter, general features and the application of the most common advanced oxidation processes (AOPs) for the treatment of domestic and industrial wastewater are described. Also, the feasibility of scaling up advanced oxidation processes for pollutants removal (emerging and conventional) and the advantages and complications of each type of advanced oxidation process when applied to wastewater treatment (domestic and industrial) are shown.

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“…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.

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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.

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Optimization for Fenton Process in Removal of COD for Landfill Leachate Treatment

Abstract: Abstract-Present

Cited by 7 publications

References 23 publications

Performance of Fenton process for the removal of recalcitrant organics from landfill leachate after nitrification / Desempenho do processo Fenton para remoção de orgânicos recalcitrantes de lixiviado do aterro sanitário após a nitrificação

Performance of Fenton process for the removal of recalcitrant organics from landfill leachate after nitrification / Desempenho do processo Fenton para remoção de orgânicos recalcitrantes de lixiviado do aterro sanitário após a nitrificação

Application of advanced oxidation processes for domestic and industrial wastewater treatment

Fenton Process Optimization with Landfill Leachate in Janczyce as an Example

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