Version 1
: Received: 23 February 2024 / Approved: 27 February 2024 / Online: 29 February 2024 (13:45:25 CET)
How to cite:
Adisa, A.O.; Durrant, A. Foam Control Mechanisms in Anaerobic Digestion Systems. Preprints2024, 2024021742. https://doi.org/10.20944/preprints202402.1742.v1
Adisa, A.O.; Durrant, A. Foam Control Mechanisms in Anaerobic Digestion Systems. Preprints 2024, 2024021742. https://doi.org/10.20944/preprints202402.1742.v1
Adisa, A.O.; Durrant, A. Foam Control Mechanisms in Anaerobic Digestion Systems. Preprints2024, 2024021742. https://doi.org/10.20944/preprints202402.1742.v1
APA Style
Adisa, A.O., & Durrant, A. (2024). Foam Control Mechanisms in Anaerobic Digestion Systems. Preprints. https://doi.org/10.20944/preprints202402.1742.v1
Chicago/Turabian Style
Adisa, A.O. and Andy Durrant. 2024 "Foam Control Mechanisms in Anaerobic Digestion Systems" Preprints. https://doi.org/10.20944/preprints202402.1742.v1
Abstract
Anaerobic digestion of waste material to biogas, with the remaining digestate slurry used as agricultural biofertilizer, is already a route of sustainable fuel production and its uptake will grow further. However, the foam layer that forms on top of the reacting mixture impedes the process and leads to liquid and solid material contaminating the gas product. Ideally, any effective foam repression should be low-cost, and react fast. Therefore, methods of optimizing anaerobic digestion need foam repression as one of the parameters in increasing gas yield. Foam can be repressed by pre-treating substrate which destroys filamentous bacteria and adding trace elements. The drawback to this method is the high cost of pre-treatment, the trace elements not being biodegradable and being toxic at high concentration; this method does not completely repress foam and is only effective under moderate organic loading
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
