Process enhancement for maximization of methane production in codigestion biogas plants
Author:
Capodaglio Andrea G,Ranieri Ezio,Torretta Vincenzo
Abstract
Purpose
– The purpose of this paper is to develop improvements in the efficiency of the codigestion process.
Design/methodology/approach
– Two pilot plants, fed by different compositions of manure and industrial organic waste, generating biogas by mesophilic and thermophilic anaerobic fermentation, respectively, were analysed.
Findings
– It was observed that these processes do not commonly operate at maximum theoretical efficiency.
Research limitations/implications
– The limiting factor in the process was found to be the hydrolysis of the digested material.
Practical implications
– A technical solution had been suggested: implementing a secondary (after) storage phase which has the purpose of exploiting, by promoting enhanced hydrolysis, the substrate potential that remains undigested after the traditional process.
Originality/value
– The proposed configuration opens to original variations in the anaerobic digestion schemes.
Subject
Management, Monitoring, Policy and Law,Public Health, Environmental and Occupational Health
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