Anaerobic digestion of olive mill effluents: Microbiological and processing aspects

Vincenza Andreoni; Pierluigi Bonfanti; Daniele Daffonchio; Claudia Sorlini; Michela Villa

doi:10.1080/10934529309375994

Anaerobic digestion of olive mill effluents: Microbiological and processing aspects

Vincenza Andreoni, Pierluigi Bonfanti, Daniele Daffonchio, Claudia Sorlini, Michela Villa

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

7 Scopus citations

Abstract

Olive mill effluents have been treated by anaerobic digestion, using a laboratory scale, fixed bed, upflow digester. The process was conducted with two different retention times (2 and 1 days); organic load was increased up to 40 kg C0D/m³d. COD removal and biogas production were used as indicator of process efficiency. Counts of the main microbial groups involved in methanogenesis were determined to study microorganisms behaviour with different process conditions. The best COD removal (70-80%) was obtained with 2 days retention time and organic load of 5.5-9.5 kg COD/m³d. By working with an organic load of 40 kg COD/m³d at 1 day retention time, plant performances decreased but the process was not inhibited. Acidogenic and methanogenic bacteria significatively decreased, when the digester operated at high organic load.

Original language	English (US)
Pages (from-to)	2041-2059
Number of pages	19
Journal	Journal of Environmental Science and Health. Part A: Environmental Science and Engineering and Toxicology
Volume	28
Issue number	9
DOIs	https://doi.org/10.1080/10934529309375994
State	Published - Nov 1 1993
Externally published	Yes

Keywords

Anaerobic digestion
methanogenic consortium
olive oil mill effluents (OME)

ASJC Scopus subject areas

Pollution

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10.1080/10934529309375994

Cite this

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title = "Anaerobic digestion of olive mill effluents: Microbiological and processing aspects",

abstract = "Olive mill effluents have been treated by anaerobic digestion, using a laboratory scale, fixed bed, upflow digester. The process was conducted with two different retention times (2 and 1 days); organic load was increased up to 40 kg C0D/m3d. COD removal and biogas production were used as indicator of process efficiency. Counts of the main microbial groups involved in methanogenesis were determined to study microorganisms behaviour with different process conditions. The best COD removal (70-80%) was obtained with 2 days retention time and organic load of 5.5-9.5 kg COD/m3d. By working with an organic load of 40 kg COD/m3d at 1 day retention time, plant performances decreased but the process was not inhibited. Acidogenic and methanogenic bacteria significatively decreased, when the digester operated at high organic load.",

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Anaerobic digestion of olive mill effluents: Microbiological and processing aspects. / Andreoni, Vincenza; Bonfanti, Pierluigi; Daffonchio, Daniele et al.
In: Journal of Environmental Science and Health. Part A: Environmental Science and Engineering and Toxicology, Vol. 28, No. 9, 01.11.1993, p. 2041-2059.

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

TY - JOUR

T1 - Anaerobic digestion of olive mill effluents

T2 - Microbiological and processing aspects

AU - Andreoni, Vincenza

AU - Bonfanti, Pierluigi

AU - Daffonchio, Daniele

AU - Sorlini, Claudia

AU - Villa, Michela

PY - 1993/11/1

Y1 - 1993/11/1

N2 - Olive mill effluents have been treated by anaerobic digestion, using a laboratory scale, fixed bed, upflow digester. The process was conducted with two different retention times (2 and 1 days); organic load was increased up to 40 kg C0D/m3d. COD removal and biogas production were used as indicator of process efficiency. Counts of the main microbial groups involved in methanogenesis were determined to study microorganisms behaviour with different process conditions. The best COD removal (70-80%) was obtained with 2 days retention time and organic load of 5.5-9.5 kg COD/m3d. By working with an organic load of 40 kg COD/m3d at 1 day retention time, plant performances decreased but the process was not inhibited. Acidogenic and methanogenic bacteria significatively decreased, when the digester operated at high organic load.

AB - Olive mill effluents have been treated by anaerobic digestion, using a laboratory scale, fixed bed, upflow digester. The process was conducted with two different retention times (2 and 1 days); organic load was increased up to 40 kg C0D/m3d. COD removal and biogas production were used as indicator of process efficiency. Counts of the main microbial groups involved in methanogenesis were determined to study microorganisms behaviour with different process conditions. The best COD removal (70-80%) was obtained with 2 days retention time and organic load of 5.5-9.5 kg COD/m3d. By working with an organic load of 40 kg COD/m3d at 1 day retention time, plant performances decreased but the process was not inhibited. Acidogenic and methanogenic bacteria significatively decreased, when the digester operated at high organic load.

KW - Anaerobic digestion

KW - methanogenic consortium

KW - olive oil mill effluents (OME)

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SN - 1077-1204

VL - 28

SP - 2041

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JO - Journal of Environmental Science and Health. Part A: Environmental Science and Engineering and Toxicology

JF - Journal of Environmental Science and Health. Part A: Environmental Science and Engineering and Toxicology

IS - 9

ER -

Anaerobic digestion of olive mill effluents: Microbiological and processing aspects

Abstract

Keywords

ASJC Scopus subject areas

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