Long-term competition between sulphate-reducing and methane-producing bacteria during full-scale anaerobic treatment of citric acid production wastewater

V. O'Flaherty; P. Lens; B. Leahy; E. Colleran

doi:10.1016/S0043-1354(97)00270-4

Long-term competition between sulphate-reducing and methane-producing bacteria during full-scale anaerobic treatment of citric acid production wastewater

V. O'Flaherty
, P. Lens
, B. Leahy
, E. Colleran

Sustainable World

Research output: Contribution to a Journal (Peer & Non Peer) › Article › peer-review

116 Citations (Scopus)

Abstract

The bacterial population structure of sludge present in a full-scale upflow, fully-packed anaerobic digester treating a sulphate-containing wastewater (12 g COD/l, 4 g SO₄^2-/l) from the citric acid production industry for a period of 5 years was determined. Populations of sulphate-reducing, methanogenic, syntrophic and homoacetogenic bacteria were found to prevail in the reactor sludge. The degradation patterns of several key anaerobic intermediates were studied. Both propionate and H₂/CO₂ were completely metabolised by sulphate reducing bacteria. Methanogenic bacteria outcompeted sulphate-reducers for acetate, whereas competition took place for butyrate and ethanol. The outcome of competition in the sludge was not affected by the location within the reactor or by the cell residence time.

Original language	English
Pages (from-to)	815-825
Number of pages	11
Journal	Water Research
Volume	32
Issue number	3
DOIs	https://doi.org/10.1016/S0043-1354(97)00270-4
Publication status	Published - 1 Mar 1998

Keywords

Anaerobic digestion
Bacterial population
Citric acid
Methane-producing bacteria
Sulphate-reducing bacteria
Wastewater

UN SDGs

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

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10.1016/S0043-1354(97)00270-4

Cite this

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title = "Long-term competition between sulphate-reducing and methane-producing bacteria during full-scale anaerobic treatment of citric acid production wastewater",

abstract = "The bacterial population structure of sludge present in a full-scale upflow, fully-packed anaerobic digester treating a sulphate-containing wastewater (12 g COD/l, 4 g SO42-/l) from the citric acid production industry for a period of 5 years was determined. Populations of sulphate-reducing, methanogenic, syntrophic and homoacetogenic bacteria were found to prevail in the reactor sludge. The degradation patterns of several key anaerobic intermediates were studied. Both propionate and H2/CO2 were completely metabolised by sulphate reducing bacteria. Methanogenic bacteria outcompeted sulphate-reducers for acetate, whereas competition took place for butyrate and ethanol. The outcome of competition in the sludge was not affected by the location within the reactor or by the cell residence time.",

keywords = "Anaerobic digestion, Bacterial population, Citric acid, Methane-producing bacteria, Sulphate-reducing bacteria, Wastewater",

author = "V. O'Flaherty and P. Lens and B. Leahy and E. Colleran",

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TY - JOUR

T1 - Long-term competition between sulphate-reducing and methane-producing bacteria during full-scale anaerobic treatment of citric acid production wastewater

AU - O'Flaherty, V.

AU - Lens, P.

AU - Leahy, B.

AU - Colleran, E.

PY - 1998/3/1

Y1 - 1998/3/1

N2 - The bacterial population structure of sludge present in a full-scale upflow, fully-packed anaerobic digester treating a sulphate-containing wastewater (12 g COD/l, 4 g SO42-/l) from the citric acid production industry for a period of 5 years was determined. Populations of sulphate-reducing, methanogenic, syntrophic and homoacetogenic bacteria were found to prevail in the reactor sludge. The degradation patterns of several key anaerobic intermediates were studied. Both propionate and H2/CO2 were completely metabolised by sulphate reducing bacteria. Methanogenic bacteria outcompeted sulphate-reducers for acetate, whereas competition took place for butyrate and ethanol. The outcome of competition in the sludge was not affected by the location within the reactor or by the cell residence time.

AB - The bacterial population structure of sludge present in a full-scale upflow, fully-packed anaerobic digester treating a sulphate-containing wastewater (12 g COD/l, 4 g SO42-/l) from the citric acid production industry for a period of 5 years was determined. Populations of sulphate-reducing, methanogenic, syntrophic and homoacetogenic bacteria were found to prevail in the reactor sludge. The degradation patterns of several key anaerobic intermediates were studied. Both propionate and H2/CO2 were completely metabolised by sulphate reducing bacteria. Methanogenic bacteria outcompeted sulphate-reducers for acetate, whereas competition took place for butyrate and ethanol. The outcome of competition in the sludge was not affected by the location within the reactor or by the cell residence time.

KW - Anaerobic digestion

KW - Bacterial population

KW - Citric acid

KW - Methane-producing bacteria

KW - Sulphate-reducing bacteria

KW - Wastewater

UR - https://www.scopus.com/pages/publications/0032031301

U2 - 10.1016/S0043-1354(97)00270-4

DO - 10.1016/S0043-1354(97)00270-4

M3 - Article

SN - 0043-1354

VL - 32

SP - 815

EP - 825

JO - Water Research

JF - Water Research

IS - 3

ER -

Long-term competition between sulphate-reducing and methane-producing bacteria during full-scale anaerobic treatment of citric acid production wastewater

Abstract

Keywords

UN SDGs

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