Anaerobic reactors in full-scale biogas plants often encounter process instability; thus, their
operational efficiency and further promotion remain limited. Process monitoring can be used …

Biogas plants can effectively treat organic wastes from various sources and recover energy
from biomass for commercial use. However, anaerobic digestion (AD) can suffer from …

Highlights•AD instability is a crucial operational challenge for biogas production.•Process
monitoring can provide stable and efficient biogas production.•Recent and effective AD …

Although anaerobic digestion (AD) is a rather mature technology, poor anaerobic digester
performance and system failure are still frequent around the world. Most of these problems …

The versatility of anaerobic digestion (AD) as an effective technology for solving central
challenges met in applied biotechnological industry and society has been documented in …

This study investigated the use of an electronic nose for on-line anaerobic reactor state
monitoring at the pilot-scale level and then upscaling to the full-scale level. E-nose indicator …

Anaerobic process state indicators were used to monitor a manure digester exposed to
different types of disturbances, in order to find the most proper indicator (s) for monitoring the …

Background Monitoring and providing early warning are essential operations in the
anaerobic digestion (AD) process. However, there are still several challenges for identifying …

Volatile fatty acids and carbonate alkalinity have long been considered the key variables in
most anaerobic digestion (AD) monitoring strategies as they not only reflect the current …

Effective monitoring and diagnosis of anaerobic digestion processes is a great challenge for
anaerobic digestion reactors, which limits their stable operation. In this work, an online …