Advanced oxidation of biologically pretreated baker's yeast industry effluents for high recalcitrant COD and color removal

Mahmut Altinbas; Ali Fuat Aydin; Mehmet Faik Sevimli; Izzet Ozturk

doi:10.1081/ESE-120023370

Advanced oxidation of biologically pretreated baker's yeast industry effluents for high recalcitrant COD and color removal

Mahmut Altinbas^*
, Ali Fuat Aydin
, Mehmet Faik Sevimli
, Izzet Ozturk

^*Corresponding author for this work

Department of Environmental Engineering

Selcuk University

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

Abstract

The aim of this study was to investigate the effectiveness of chemical oxidation by applying ozonation, ozonation with hydrogen peroxide and Fenton's processes for decolorization and residual COD removal of biologically pretreated baker's yeast industry (BYI) effluents. Baker's yeast industry effluents characterizing with high COD, TKN, dark color, and non-biodegradable organic pollutants. The batch tests were performed to determine the optimum operating conditions including pH, O₃, H₂O₂, and FeSO₄ dosages, molar ratio of Fe²⁺/H₂O ₂ and reaction time. It was noticed that H₂O₂ significantly reduced the reaction times for the same ozone dosages; however, COD and color removals were not remarkable. In the Fenton's oxidation studies, the removal efficiencies of COD and color for 30 min reaction time for three different types of BYI effluents were found about 86 and 92%, respectively. Experimental results of the presented study have clearly indicated that the Fenton's oxidation technology is capable to fate almost all parts of the organics which consist of both soluble initial and microbial inert fractions of COD for baker's yeast effluents. Effluents from the Fenton's oxidation process can satisfy effluent standards for COD and color in general.

Original language	English
Pages (from-to)	2229-2240
Number of pages	12
Journal	Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
Volume	38
Issue number	10
DOIs	https://doi.org/10.1081/ESE-120023370
Publication status	Published - 2003

Funding

This work was supported by The Research and Development Fund of Istanbul Technical University.

Funders
Istanbul Teknik Üniversitesi

Keywords

Advanced oxidation
Baker's yeast industry effluents
Fenton's oxidation
Ozonation
Refractory organics

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10.1081/ESE-120023370

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title = "Advanced oxidation of biologically pretreated baker's yeast industry effluents for high recalcitrant COD and color removal",

abstract = "The aim of this study was to investigate the effectiveness of chemical oxidation by applying ozonation, ozonation with hydrogen peroxide and Fenton's processes for decolorization and residual COD removal of biologically pretreated baker's yeast industry (BYI) effluents. Baker's yeast industry effluents characterizing with high COD, TKN, dark color, and non-biodegradable organic pollutants. The batch tests were performed to determine the optimum operating conditions including pH, O3, H2O2, and FeSO4 dosages, molar ratio of Fe2+/H2O 2 and reaction time. It was noticed that H2O2 significantly reduced the reaction times for the same ozone dosages; however, COD and color removals were not remarkable. In the Fenton's oxidation studies, the removal efficiencies of COD and color for 30 min reaction time for three different types of BYI effluents were found about 86 and 92\%, respectively. Experimental results of the presented study have clearly indicated that the Fenton's oxidation technology is capable to fate almost all parts of the organics which consist of both soluble initial and microbial inert fractions of COD for baker's yeast effluents. Effluents from the Fenton's oxidation process can satisfy effluent standards for COD and color in general.",

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Advanced oxidation of biologically pretreated baker's yeast industry effluents for high recalcitrant COD and color removal. / Altinbas, Mahmut ; Aydin, Ali Fuat; Sevimli, Mehmet Faik et al.
In: Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering, Vol. 38, No. 10, 2003, p. 2229-2240.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Advanced oxidation of biologically pretreated baker's yeast industry effluents for high recalcitrant COD and color removal

AU - Altinbas, Mahmut

AU - Aydin, Ali Fuat

AU - Sevimli, Mehmet Faik

AU - Ozturk, Izzet

PY - 2003

Y1 - 2003

N2 - The aim of this study was to investigate the effectiveness of chemical oxidation by applying ozonation, ozonation with hydrogen peroxide and Fenton's processes for decolorization and residual COD removal of biologically pretreated baker's yeast industry (BYI) effluents. Baker's yeast industry effluents characterizing with high COD, TKN, dark color, and non-biodegradable organic pollutants. The batch tests were performed to determine the optimum operating conditions including pH, O3, H2O2, and FeSO4 dosages, molar ratio of Fe2+/H2O 2 and reaction time. It was noticed that H2O2 significantly reduced the reaction times for the same ozone dosages; however, COD and color removals were not remarkable. In the Fenton's oxidation studies, the removal efficiencies of COD and color for 30 min reaction time for three different types of BYI effluents were found about 86 and 92%, respectively. Experimental results of the presented study have clearly indicated that the Fenton's oxidation technology is capable to fate almost all parts of the organics which consist of both soluble initial and microbial inert fractions of COD for baker's yeast effluents. Effluents from the Fenton's oxidation process can satisfy effluent standards for COD and color in general.

AB - The aim of this study was to investigate the effectiveness of chemical oxidation by applying ozonation, ozonation with hydrogen peroxide and Fenton's processes for decolorization and residual COD removal of biologically pretreated baker's yeast industry (BYI) effluents. Baker's yeast industry effluents characterizing with high COD, TKN, dark color, and non-biodegradable organic pollutants. The batch tests were performed to determine the optimum operating conditions including pH, O3, H2O2, and FeSO4 dosages, molar ratio of Fe2+/H2O 2 and reaction time. It was noticed that H2O2 significantly reduced the reaction times for the same ozone dosages; however, COD and color removals were not remarkable. In the Fenton's oxidation studies, the removal efficiencies of COD and color for 30 min reaction time for three different types of BYI effluents were found about 86 and 92%, respectively. Experimental results of the presented study have clearly indicated that the Fenton's oxidation technology is capable to fate almost all parts of the organics which consist of both soluble initial and microbial inert fractions of COD for baker's yeast effluents. Effluents from the Fenton's oxidation process can satisfy effluent standards for COD and color in general.

KW - Advanced oxidation

KW - Baker's yeast industry effluents

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KW - Ozonation

KW - Refractory organics

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IS - 10

ER -

Advanced oxidation of biologically pretreated baker's yeast industry effluents for high recalcitrant COD and color removal

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