Preliminary Analysis on Bio-Acidification Using Coffee Torrefaction Waste and Acetic Acid on Animal Manure from a Dairy Farm

Grazia Cinardi, Serena Vitaliano, Alessandro Fasciana, Ferdinando Fragalà, Emanuele La Bella, Luciano Manuel Santoro, Provvidenza Rita D’Urso (), Andrea Baglieri, Giovanni Cascone and Claudia Arcidiacono
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Grazia Cinardi: Department of Agriculture, Food and Environment (Di3A), Building and Land Engineering Section, University of Catania, Via S. Sofia 100, 95123 Catania, Italy
Serena Vitaliano: Department of Agriculture, Food and Environment (Di3A), Building and Land Engineering Section, University of Catania, Via S. Sofia 100, 95123 Catania, Italy
Alessandro Fasciana: Department of Agriculture, Food and Environment (Di3A), Building and Land Engineering Section, University of Catania, Via S. Sofia 100, 95123 Catania, Italy
Ferdinando Fragalà: Department of Agriculture, Food and Environment (Di3A), Building and Land Engineering Section, University of Catania, Via S. Sofia 100, 95123 Catania, Italy
Emanuele La Bella: Department of Agriculture, Food and Environment (Di3A), Building and Land Engineering Section, University of Catania, Via S. Sofia 100, 95123 Catania, Italy
Luciano Manuel Santoro: Department of Agriculture, Food and Environment (Di3A), Building and Land Engineering Section, University of Catania, Via S. Sofia 100, 95123 Catania, Italy
Provvidenza Rita D’Urso: Department of Agriculture, Food and Environment (Di3A), Building and Land Engineering Section, University of Catania, Via S. Sofia 100, 95123 Catania, Italy
Andrea Baglieri: Department of Agriculture, Food and Environment (Di3A), Building and Land Engineering Section, University of Catania, Via S. Sofia 100, 95123 Catania, Italy
Giovanni Cascone: Department of Agriculture, Food and Environment (Di3A), Building and Land Engineering Section, University of Catania, Via S. Sofia 100, 95123 Catania, Italy
Claudia Arcidiacono: Department of Agriculture, Food and Environment (Di3A), Building and Land Engineering Section, University of Catania, Via S. Sofia 100, 95123 Catania, Italy

Agriculture, 2025, vol. 15, issue 9, 1-17

Abstract: This study investigates bio-acidification as a method to decrease the pH of animal manure in dairy farms through the application of coffee silverskin (i.e., a coffee torrefaction waste) and acetic acid. The aim was to focus on the preliminary analysis needed to assess the suitability of using this mitigation strategy. This analysis was carried out by developing a three-step methodology. The first step included the identification of the appropriate proportions of coffee silverskin and acetic acid at the laboratory scale; in the second step, the best treated proportions were analysed in field conditions to compare the statistical differences among the pH of the control and treated samples. In the third step, territorial evaluation was carried out to verify the availability of the coffee waste in the territory based on the use of a Geographic Information System (GIS). Based on the results, a reduction of 38% and 31% in pH was observed in samples treated with acetic acid and coffee silverskin at the laboratory scale and in field conditions, respectively. The territorial analysis showed that it is possible to valorise this agro-industrial waste while minimising environmental impacts due to transportation if the coffee industry is located within a 75 km distance.

Keywords: mitigation strategies; pH reduction; manure; food waste; geographic information systems; territorial analyses (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2025
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