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OPTIMIZATION OF ACID-HEAT PRE-TREATMENT TO ENHANCE ABATEMENT OF PATHOGENIC BACTERIA DURING ANAEROBIC DIGESTION


DELMON CEDRIC 1*, PROROT AUDREY 1, CASELLAS-FRANÇAIS MAGALI 1, LEPRAT PATRICK 1
1Université de Limoges, Laboratoire PEIRENE, 123 Avenue Albert Thomas 87060 Limoges

Issue:

PLUMEE, Number 1, Volume IX

Section:

Issue No.1 - Volume 9 (2019)

Abstract:

In Europe, anaerobic digestion is a sector in full development. The solid product

of this anaerobic digestion is used as a fertilizer. In terms of health, it is essential to ensure

the safety of the digestate spread on agricultural land. Treatments upstream of anaerobic

digestion could potentiate the hygenizing effect of anaerobic digestion. Acid and heat

pretreatments were tested in this study. These resulted in more or less significant reductions

in the concentration of Escherichia coli, enterococci and spores of Clostridium perfringens.

The combination of different pre-treatments would be interesting to study in future

research.

Keywords:

agricultural anaerobic digestion, pre-treatment, digestate, indicator bact.

Code [ID]:

PLUMEE201901V09S01A0008 [0004976]

Note:

DOI:

Full paper:

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