Multivariate modeling of the Fenton process for enhanced COD removal and low sludge generation in landfill leachate treatment

Biological treatment methods are not practical when it comes to landfill leachate treatment. Fenton as a physiochemical pretreatment technique is used in this research to increase the BOD/COD ratio. Conventionally, the main purpose of Fenton reaction has been the removal of organic pollutants, but i...

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Main Authors: Nader Biglarijoo, Amin Shams
Format: Article
Language:English
Published: Razi University 2024-11-01
Series:Journal of Applied Research in Water and Wastewater
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Online Access:https://arww.razi.ac.ir/article_3433_f65baa82f218776ab759a966e09702b6.pdf
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author Nader Biglarijoo
Amin Shams
author_facet Nader Biglarijoo
Amin Shams
author_sort Nader Biglarijoo
collection DOAJ
description Biological treatment methods are not practical when it comes to landfill leachate treatment. Fenton as a physiochemical pretreatment technique is used in this research to increase the BOD/COD ratio. Conventionally, the main purpose of Fenton reaction has been the removal of organic pollutants, but in this paper, two other factors including sludge to iron ratio (SIR) and organic removal to sludge ratio (ORSR) are examined to generate low amounts of sludge as well. For the design of the experimental procedure, central composite design was used to not only minimize the required tests, but also observe the interactions between factors. Therefore, pH, ,  dosage and reaction time were considered as critical parameters while COD removal rate, SIR, and ORSR were introduced as targets. In order to have a clearer understanding of the process, multivariate modeling was applied to three targets to provide better predictions of the reaction. According to the statistical results, models can acceptably predict the target responses with R2 above 0.95 and standard error and F-values were within suitable ranges. To reach high COD removal rates, the critical factors were  and  while for lower SIR and higher ORSR, the role of pH and  were more significant. The reaction time was not a determining factor based on our observations for all three targets.
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spelling doaj-art-6916c053efb24c8c956a637f98a6208e2025-01-18T11:37:21ZengRazi UniversityJournal of Applied Research in Water and Wastewater2476-62832024-11-0111211011510.22126/arww.2025.11294.13463433Multivariate modeling of the Fenton process for enhanced COD removal and low sludge generation in landfill leachate treatmentNader Biglarijoo0Amin Shams1Department of Civil Engineering, School of Civil Engineering, Semnan University, Semnan, Iran.Civil Engineering Department, School of Civil Engineering, Semnan University, Semnan, Iran.Biological treatment methods are not practical when it comes to landfill leachate treatment. Fenton as a physiochemical pretreatment technique is used in this research to increase the BOD/COD ratio. Conventionally, the main purpose of Fenton reaction has been the removal of organic pollutants, but in this paper, two other factors including sludge to iron ratio (SIR) and organic removal to sludge ratio (ORSR) are examined to generate low amounts of sludge as well. For the design of the experimental procedure, central composite design was used to not only minimize the required tests, but also observe the interactions between factors. Therefore, pH, ,  dosage and reaction time were considered as critical parameters while COD removal rate, SIR, and ORSR were introduced as targets. In order to have a clearer understanding of the process, multivariate modeling was applied to three targets to provide better predictions of the reaction. According to the statistical results, models can acceptably predict the target responses with R2 above 0.95 and standard error and F-values were within suitable ranges. To reach high COD removal rates, the critical factors were  and  while for lower SIR and higher ORSR, the role of pH and  were more significant. The reaction time was not a determining factor based on our observations for all three targets.https://arww.razi.ac.ir/article_3433_f65baa82f218776ab759a966e09702b6.pdffenton processlandfill leachatecod removalsludge generationmultivariate modeling
spellingShingle Nader Biglarijoo
Amin Shams
Multivariate modeling of the Fenton process for enhanced COD removal and low sludge generation in landfill leachate treatment
Journal of Applied Research in Water and Wastewater
fenton process
landfill leachate
cod removal
sludge generation
multivariate modeling
title Multivariate modeling of the Fenton process for enhanced COD removal and low sludge generation in landfill leachate treatment
title_full Multivariate modeling of the Fenton process for enhanced COD removal and low sludge generation in landfill leachate treatment
title_fullStr Multivariate modeling of the Fenton process for enhanced COD removal and low sludge generation in landfill leachate treatment
title_full_unstemmed Multivariate modeling of the Fenton process for enhanced COD removal and low sludge generation in landfill leachate treatment
title_short Multivariate modeling of the Fenton process for enhanced COD removal and low sludge generation in landfill leachate treatment
title_sort multivariate modeling of the fenton process for enhanced cod removal and low sludge generation in landfill leachate treatment
topic fenton process
landfill leachate
cod removal
sludge generation
multivariate modeling
url https://arww.razi.ac.ir/article_3433_f65baa82f218776ab759a966e09702b6.pdf
work_keys_str_mv AT naderbiglarijoo multivariatemodelingofthefentonprocessforenhancedcodremovalandlowsludgegenerationinlandfillleachatetreatment
AT aminshams multivariatemodelingofthefentonprocessforenhancedcodremovalandlowsludgegenerationinlandfillleachatetreatment