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Monitoring the stability of the anaerobic digestion process through CO2 partial pressure in the reactor slurry
Project
Project code: 2219NR054
Contract period: 01.01.2020
- 31.12.2022
Budget: 379,761 Euro
Purpose of research: Experimental development
Keywords: biogas, digitalization, renewable ressources
A feasible and real-time assessment of the process stability of the anaerobic digestion (AD) is a basic prerequisite for sustainable biogas production. The need for an on-line process monitoring is going to increase along with different feeding regimes applied in demand-oriented biogas production. Such monitoring system shall provide a cost-effective, reliable assessment of process stability and enable wide market penetration. A novel method for stability monitoring of the AD process was developed from year-long applications of CO2 partial pressure (pCO2) measurement in the reactor slurry within the applicant's working group. The project "Monitoring of process stability in biogas reactors using CO2 partial pressure within the slurry” addresses the following aims: (1) Extensive tests for the relationship between pCO2 and currently used stability parameters such as volatile acids/alkalinity ratio (VFA/TIC), acid concentrations etc., (2) Extensive tests in full scale reactors especially in those with flexible feeding system, (3) comparative evaluation of commercially available pCO2 systems in terms of their use within the full-scale plant environment, (4) economical feasibility together with (5) system adaptation for a broad biogas market and finally (6) elaboration of pCO2 thresholds for optimal AD process. Transfer-to-market activities shall lead to a wide application in the biogas practice.
Section overview
Subjects
- Resource management
- Renewable Resources
- Climate Change
