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

This study aimed at analysing the utilization of an electronic nose (e-nose) to serve as a
specific monitoring tool for anaerobic digestion process, especially for detecting organic …

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 …

The demand for online monitoring and control of biogas process is increasing, since better
monitoring and control system can improve process plants stability and economy. A number …

Internal Circulation (IC) anaerobic systems are especially suitable when plant designs that
involve both small footprints and high organic loading rates (> 25 kg COD m− 3 d− 1) are …

Process monitoring is an essential measure to achieve efficient and stable performance in
anaerobic digestion, thus requiring identification of effective early warning indicators …

The use of electronic gas sensors and near-infrared spectroscopy (NIR) to monitor the
dynamics in a biogas process was evaluated using multivariate data analysis. The digester …

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 …