Effect of mixing on primary sludge fermentation products

Seda Oktay; Emine Ubay Cokgor; Gülsüm Emel Zengin; Ebru Avcioglu Aksit; Derin Orhon

Effect of mixing on primary sludge fermentation products

Seda Oktay, Emine Ubay Cokgor^*, Gülsüm Emel Zengin, Ebru Avcioglu Aksit, Derin Orhon

^*Corresponding author for this work

Department of Environmental Engineering

Istanbul Technical University

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

1 Citation (Scopus)

Abstract

In this study, a bench-scale fermenter was operated at room temperature to investigate COD solubilization and fermentation of primary sludge at Atakoy treatment plant in Istanbul, Turkey. The objective was to evaluate and compare the potential of short-chain volatile fatty acid (VFA) generation by simple uncontrolled fermentation of primary sludge under mixed and unmixed conditions. The results clearly show that the predominant fermentation products are always acetic and propionic acids, independent from with/without mixing. The COD equivalent of VFA for mixed and unmixed conditions was obtained to be 1.25 and 1.28 g COD/g VFA, respectively. Under mixing conditions more than 40% improvement in VFA yields was achieved.

Original language	English
Pages (from-to)	1024-1027
Number of pages	4
Journal	Fresenius Environmental Bulletin
Volume	13
Issue number	10
Publication status	Published - 2004

Keywords

Biological nutrient removal
Fermentation
Primary sludge
Volatile fatty acids (VFAs)

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This output contributes to the following UN Sustainable Development Goals (SDGs)

Cite this

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title = "Effect of mixing on primary sludge fermentation products",

abstract = "In this study, a bench-scale fermenter was operated at room temperature to investigate COD solubilization and fermentation of primary sludge at Atakoy treatment plant in Istanbul, Turkey. The objective was to evaluate and compare the potential of short-chain volatile fatty acid (VFA) generation by simple uncontrolled fermentation of primary sludge under mixed and unmixed conditions. The results clearly show that the predominant fermentation products are always acetic and propionic acids, independent from with/without mixing. The COD equivalent of VFA for mixed and unmixed conditions was obtained to be 1.25 and 1.28 g COD/g VFA, respectively. Under mixing conditions more than 40% improvement in VFA yields was achieved.",

keywords = "Biological nutrient removal, Fermentation, Primary sludge, Volatile fatty acids (VFAs)",

author = "Seda Oktay and Cokgor, {Emine Ubay} and Zengin, {G{\"u}ls{\"u}m Emel} and Aksit, {Ebru Avcioglu} and Derin Orhon",

year = "2004",

language = "English",

volume = "13",

pages = "1024--1027",

journal = "Fresenius Environmental Bulletin",

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TY - JOUR

T1 - Effect of mixing on primary sludge fermentation products

AU - Oktay, Seda

AU - Cokgor, Emine Ubay

AU - Zengin, Gülsüm Emel

AU - Aksit, Ebru Avcioglu

AU - Orhon, Derin

PY - 2004

Y1 - 2004

N2 - In this study, a bench-scale fermenter was operated at room temperature to investigate COD solubilization and fermentation of primary sludge at Atakoy treatment plant in Istanbul, Turkey. The objective was to evaluate and compare the potential of short-chain volatile fatty acid (VFA) generation by simple uncontrolled fermentation of primary sludge under mixed and unmixed conditions. The results clearly show that the predominant fermentation products are always acetic and propionic acids, independent from with/without mixing. The COD equivalent of VFA for mixed and unmixed conditions was obtained to be 1.25 and 1.28 g COD/g VFA, respectively. Under mixing conditions more than 40% improvement in VFA yields was achieved.

AB - In this study, a bench-scale fermenter was operated at room temperature to investigate COD solubilization and fermentation of primary sludge at Atakoy treatment plant in Istanbul, Turkey. The objective was to evaluate and compare the potential of short-chain volatile fatty acid (VFA) generation by simple uncontrolled fermentation of primary sludge under mixed and unmixed conditions. The results clearly show that the predominant fermentation products are always acetic and propionic acids, independent from with/without mixing. The COD equivalent of VFA for mixed and unmixed conditions was obtained to be 1.25 and 1.28 g COD/g VFA, respectively. Under mixing conditions more than 40% improvement in VFA yields was achieved.

KW - Biological nutrient removal

KW - Fermentation

KW - Primary sludge

KW - Volatile fatty acids (VFAs)

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M3 - Article

AN - SCOPUS:10044288573

SN - 1018-4619

VL - 13

SP - 1024

EP - 1027

JO - Fresenius Environmental Bulletin

JF - Fresenius Environmental Bulletin

IS - 10

ER -

Effect of mixing on primary sludge fermentation products

Abstract

Keywords

UN SDGs

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