Articles scientifiques



Type : Articles scientifiques
Auteur(s) : Côté, C., D.I. Massé et S. Quessy
Année : 2006
Titre : Reduction of indicator and pathogenic microorganisms by psychrophilic anaerobic digestion in swine slurries
Orientation : Proposer des stratégies d'élevage et de gestion des déjections animales
Publication : Bioresource Technology
Volume : 97
Pages : 686-691.
Résumé : The objective of this study was to evaluate the efficiency of a low temperature anaerobic treatment to reduce viable populations of indicator microorganisms (total coliforms, Escherichia coli) and the presence of selected pathogens (Salmonella, Yersinia enterocolitica, Crytosporidium and Giardia) in swine slurries from different sources. Experiments were carried out in 40-L Sequencing Batch Reactors (SBRs). Experimental results indicated that anaerobic digestion of swine manure slurry at 20oC for 20 days in an intermittently fed SBR: 1) reduced indigenous populations of total coliforms by 97.94 to 100 %; 2) reduced indigenous populations of Escherichia coli by 99.67 to 100 %; 3) resulted in undetectable levels of indigenous strains of Salmonella, Cryptosporidium, and Giardia. It can be considered as a promising method for reducing indigenous indicator and pathogenic microorganisms populations in liquid swine manure slurries.


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