iii.Digester instrumentation

Anaerobic digesters require continual monitoring of production levels and parameters to ensure optimal process management and, consequently, output is achieved by detecting and responding to changes in biomass quantity, anomalies, and the health of microorganisms [100]. The amount of biomass still to be decomposed and the amount of time spent doing so should be indicated by the gases produced. Knowing when to add new feedstock and the digester's efficiency can be gauged with this information. Maintaining optimal microbial digestion requires monitoring gas generation in a system where biomass is added regularly [67]. By monitoring the gas produced, issues in the digester, like a shift in pH or temperature, can be identified and remedied [4].
