Effect of substrates and intermediate compounds on foaming in manure digestion systems

Publication: Research - peer-reviewJournal article – Annual report year: 2012

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Effect of substrates and intermediate compounds on foaming in manure digestion systems. / Boe, Kanokwan; Kougias, Panagiotis; Pacheco, F.; O-Thong, Sompong ; Angelidaki, Irini.

In: Water Science and Technology, Vol. 66, No. 10, 2012, p. 2146-2154.

Publication: Research - peer-reviewJournal article – Annual report year: 2012

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Boe, Kanokwan; Kougias, Panagiotis; Pacheco, F.; O-Thong, Sompong ; Angelidaki, Irini / Effect of substrates and intermediate compounds on foaming in manure digestion systems.

In: Water Science and Technology, Vol. 66, No. 10, 2012, p. 2146-2154.

Publication: Research - peer-reviewJournal article – Annual report year: 2012

Bibtex

@article{4cfe4ad992d04ec1be81e9028a8dbedd,
title = "Effect of substrates and intermediate compounds on foaming in manure digestion systems",
keywords = "Anaerobic digestion, Foaming tendency, Intermediate compounds, Manure, Substrates",
publisher = "I W A Publishing",
author = "Kanokwan Boe and Panagiotis Kougias and F. Pacheco and Sompong O-Thong and Irini Angelidaki",
year = "2012",
volume = "66",
number = "10",
pages = "2146--2154",
journal = "Water Science and Technology",
issn = "0273-1223",

}

RIS

TY - JOUR

T1 - Effect of substrates and intermediate compounds on foaming in manure digestion systems

A1 - Boe,Kanokwan

A1 - Kougias,Panagiotis

A1 - Pacheco,F.

A1 - O-Thong,Sompong

A1 - Angelidaki,Irini

AU - Boe,Kanokwan

AU - Kougias,Panagiotis

AU - Pacheco,F.

AU - O-Thong,Sompong

AU - Angelidaki,Irini

PB - I W A Publishing

PY - 2012

Y1 - 2012

N2 - Manure contains several compounds that can potentially cause foaming during anaerobic digestion. Understanding the effect of substrates and intermediate compounds on foaming tendency and stability could facilitate strategies for foaming prevention and recovery of the process. In this study, the effect of physicochemical properties of substrates and intermediate compounds on liquid properties such as surface tension, surfactant property, and hydrophobicity were investigated and compared with the effect on foaming tendency and foam stability. The results showed that there was no consistent correlation between foaming potential and hydrophobicity, oil displacement area (ODA) or surface tension of the tested solutions, and the best way to determine the foaming property of the solution was to directly measure foaming tendency and foam stability. Na-oleate and acetic acid showed the highest potential to create foam in a manure digester. Moreover, high organic loading of lipids and protein, and high concentrations of acetic and butyric acids also showed a strong tendency to create foaming during anaerobic digestion. Due to their great ability to stabilize foam, high organic loadings of Na-oleate or gelatine were considered to be the main potential foaming problem.

AB - Manure contains several compounds that can potentially cause foaming during anaerobic digestion. Understanding the effect of substrates and intermediate compounds on foaming tendency and stability could facilitate strategies for foaming prevention and recovery of the process. In this study, the effect of physicochemical properties of substrates and intermediate compounds on liquid properties such as surface tension, surfactant property, and hydrophobicity were investigated and compared with the effect on foaming tendency and foam stability. The results showed that there was no consistent correlation between foaming potential and hydrophobicity, oil displacement area (ODA) or surface tension of the tested solutions, and the best way to determine the foaming property of the solution was to directly measure foaming tendency and foam stability. Na-oleate and acetic acid showed the highest potential to create foam in a manure digester. Moreover, high organic loading of lipids and protein, and high concentrations of acetic and butyric acids also showed a strong tendency to create foaming during anaerobic digestion. Due to their great ability to stabilize foam, high organic loadings of Na-oleate or gelatine were considered to be the main potential foaming problem.

KW - Anaerobic digestion

KW - Foaming tendency

KW - Intermediate compounds

KW - Manure

KW - Substrates

JO - Water Science and Technology

JF - Water Science and Technology

SN - 0273-1223

IS - 10

VL - 66

SP - 2146

EP - 2154

ER -