Home > Research > Publications & Outputs > Anaerobic co-digestion of cattle rumen content ...

Links

Text available via DOI:

View graph of relations

Anaerobic co-digestion of cattle rumen content and food waste for biogas production: Establishment of co-digestion ratios and kinetic studies

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Published
Close
Article number101033
<mark>Journal publication date</mark>30/06/2022
<mark>Journal</mark>Bioresource Technology Reports
Volume18
Number of pages10
Publication StatusPublished
Early online date28/03/22
<mark>Original language</mark>English

Abstract

This study investigated the batch co-digestion of cattle rumen content (CRC) and food waste (FW) for biogas production in different ratios (CRC:FW) to assess biogas production and process stability. The results showed that CRC and FW possess characteristics that are desirable for biogas production as seen in their respective total solids (10.85 and 26.53%), volatile solids (89 and 86.83%) and carbon to nitrogen ratio (23.7 and 15.7) values. Co-digestion improved carbon to nitrogen ratio, biogas yield and pH of the co-substrate compared to individual substrates. The 50:50 co-digestion ratio was found to be optimum as it gave the maximum cumulative biogas yield of 320.52 ml/gVSadded. Co-digestion also improved the pH, volatile fatty acid (VFA) and total ammonia nitrogen (TAN) characteristics during digestion. The cone model was able to adequately represent the kinetics of the process. These findings have provided very useful insights into the co-digestion of CRC and FW.