LAPSE:2022.0013
Published Article
LAPSE:2022.0013
Case Study of Anaerobic Digestion Process Stability Detected by Dissolved Hydrogen Concentration
Daniela Platošová, Jiří Rusín, Jan Platoš, Kateřina Smutná, Roman Buryjan
January 24, 2022
The paper presents the results of a laboratory experiment of mesophilic single-stage anaerobic digestion performed to verify the possibility of early detection of process instability and reactor overload by evaluating the course of dissolved hydrogen concentration of the main intermediate. The digestion process was run in a Terrafors IS rotary drum bioreactor for 230 days. The substrate dosed on weekdays was food leftovers from the university canteen. At an average temperature of 37 °C, an organic loading of volatiles of 0.858 kg m−3 day−1 and a theoretical retention time of 259 days, biogas production of 0.617 Nm3 kg VS−1 was achieved with a CH4 content of 51.7 vol. %. The values of the established FOS/TAC stability indicator ranged from 0.26 to 11.4. The highest value was reached when the reactor was overloaded. The dissolved hydrogen concentration measured by the amperometric microsensor ranged from 0.039−0.425 mg dm−3. Data were statistically processed using Pearson’s correlation coefficient. The correlation of the hydrogen concentration with other parameters such as the concentration of organic acids was evaluated. The value of Pearson’s correlation coefficient was 0.331 and corresponded to a p-value of 0. The results confirmed a very low limit of the hydrogen concentration at which the microbial culture, especially methanogens, was already overloaded. The amperometric microsensor proved to be rather unsuitable for operational applications due to insufficient sensitivity and short service life. The newly designed ratio of dissolved hydrogen concentration to neutralizing capacity was tested but did not work significantly better than the established FOS/TAC stability indicator.
Keywords
amperometric sensor, anaerobic digestion, dissolved hydrogen, Fermentation, rotary bioreactor
Suggested Citation
Platošová D, Rusín J, Platoš J, Smutná K, Buryjan R. Case Study of Anaerobic Digestion Process Stability Detected by Dissolved Hydrogen Concentration. (2022). LAPSE:2022.0013
Author Affiliations
Platošová D: Institute of Environmental Technology, VSB—Technical University of Ostrava, 17. Listopadu 2172/15, 70800 Ostrava, Czech Republic [ORCID]
Rusín J: Institute of Environmental Technology, VSB—Technical University of Ostrava, 17. Listopadu 2172/15, 70800 Ostrava, Czech Republic
Platoš J: Department of Computer Science, Faculty of Electrical Engineering and Computer Science, VSB—Technical University of Ostrava, 17. Listopadu 2172/15, 70800 Ostrava, Czech Republic [ORCID]
Smutná K: Institute of Languages, VSB—Technical University of Ostrava, 17. Listopadu 2172/15, 70800 Ostrava, Czech Republic
Buryjan R: GAS Control s.r.o, Nový Svět 1407/59a, 73564 Havířov-Prostřední Suchá, Czech Republic
Journal Name
Processes
Volume
9
Issue
1
First Page
pr9010106
Year
2021
Publication Date
2021-01-07
Published Version
ISSN
2227-9717
Version Comments
Original Submission
Other Meta
PII: pr9010106, Publication Type: Journal Article
Record Map
Published Article

LAPSE:2022.0013
This Record
External Link

doi:10.3390/pr9010106
Publisher Version
Download
Files
[Download 1v1.pdf] (2.6 MB)
Jan 24, 2022
Main Article
License
CC BY 4.0
Meta
Record Statistics
Record Views
213
Version History
[v1] (Original Submission)
Jan 24, 2022
 
Verified by curator on
Jan 24, 2022
This Version Number
v1
Citations
Most Recent
This Version
URL Here
https://psecommunity.org/LAPSE:2022.0013
 
Original Submitter
Calvin Tsay
Links to Related Works
Directly Related to This Work
Publisher Version