Experimental assessment and modeling of storage kinetics for primary sludge under anoxic conditions

Ebru Avcioglu; Seval Sözen; Derin Orhon

doi:10.1089/109287503762457563

Experimental assessment and modeling of storage kinetics for primary sludge under anoxic conditions

Ebru Avcioglu^*, Seval Sözen, Derin Orhon

^*Corresponding author for this work

Department of Environmental Engineering

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

Abstract

Nitrate utilization was used as the basis for experimental assessment of storage kinetics under anoxic conditions. Acetate and the filtered portion of primary sludge were selected as substrates. Experimental data were evaluated in accordance with ASM3. Results obtained did not confirm previously suggested values for kinetic coefficients. Acetate storage could be characterized by k_STO and Y_STOD values of 10 g COD (g COD · day)^-1 and 0.6 g COD (g COD)^-1, respectively. Higher values were computed for primary sludge. Results suggest reevaluation of the concept of readily biodegradable substrate as defined in ASM3 and tested in the study.

Original language	English
Pages (from-to)	33-41
Number of pages	9
Journal	Environmental Engineering Science
Volume	20
Issue number	1
DOIs	https://doi.org/10.1089/109287503762457563
Publication status	Published - 2003

Keywords

Acetate
Anoxic
ASM3
COD fractionation
Primary sludge
Storage

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AU - Avcioglu, Ebru

AU - Sözen, Seval

AU - Orhon, Derin

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N2 - Nitrate utilization was used as the basis for experimental assessment of storage kinetics under anoxic conditions. Acetate and the filtered portion of primary sludge were selected as substrates. Experimental data were evaluated in accordance with ASM3. Results obtained did not confirm previously suggested values for kinetic coefficients. Acetate storage could be characterized by kSTO and YSTOD values of 10 g COD (g COD · day)-1 and 0.6 g COD (g COD)-1, respectively. Higher values were computed for primary sludge. Results suggest reevaluation of the concept of readily biodegradable substrate as defined in ASM3 and tested in the study.

AB - Nitrate utilization was used as the basis for experimental assessment of storage kinetics under anoxic conditions. Acetate and the filtered portion of primary sludge were selected as substrates. Experimental data were evaluated in accordance with ASM3. Results obtained did not confirm previously suggested values for kinetic coefficients. Acetate storage could be characterized by kSTO and YSTOD values of 10 g COD (g COD · day)-1 and 0.6 g COD (g COD)-1, respectively. Higher values were computed for primary sludge. Results suggest reevaluation of the concept of readily biodegradable substrate as defined in ASM3 and tested in the study.

KW - Acetate

KW - Anoxic

KW - ASM3

KW - COD fractionation

KW - Primary sludge

KW - Storage

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SP - 33

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JO - Environmental Engineering Science

JF - Environmental Engineering Science

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Experimental assessment and modeling of storage kinetics for primary sludge under anoxic conditions

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