What on earth? The impact of digestates and composts from farm effluent management on fluxes of foodborne pathogens in agricultural lands

The recycling of biomass is the cornerstone of sustainable development in the bioeconomy. In this context, digestates and composts from processed agricultural residues and biomasses are returned to the soil. Whether or not the presence of pathogenic microorganisms in these processed biomasses is a t...

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Published inThe Science of the total environment Vol. 840; p. 156693
Main Authors Piveteau, Pascal, Druilhe, Céline, Aissani, Lynda
Format Journal Article
LanguageEnglish
Published Netherlands Elsevier B.V 20.09.2022
Elsevier
Subjects
bioeconomics
biomass
Composts
Digestates
environment
Environmental Sciences
EU regulation
Farm effluent management
farms
Fate in soil
Microbial pathogens
soil
sustainable development
Digestates
Composts
EU regulation
Fate in soil
Farm effluent management
Microbial pathogens
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Summary:The recycling of biomass is the cornerstone of sustainable development in the bioeconomy. In this context, digestates and composts from processed agricultural residues and biomasses are returned to the soil. Whether or not the presence of pathogenic microorganisms in these processed biomasses is a threat to the sustainability of the current on-farm practices is still the subject of debate. In this review, we describe the microbial pathogens that may be present in digestates and composts. We then provide an overview of the current European regulation designed to mitigate health hazards linked to the use of organic fertilisers and soil improvers produced from farm biomasses and residues. Finally, we discuss the many factors that underlie the fate of microbial pathogens in the field. We argue that incorporating land characteristics in the management of safety issues connected with the spreading of organic fertilisers and soil improvers can improve the sustainability of biomass recycling. [Display omitted] •Do pathogenic microorganisms in digestates and composts from processed farm effluents threaten sustainable agronomic recycling?•What is the current EU regulation concerning the safety of farm organic fertilisers?•Which factors can predict the survival of pathogens after land application?
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ISSN:0048-9697
1879-1026
1879-1026
DOI:10.1016/j.scitotenv.2022.156693