Preliminary trials of in situ ammonia stripping from source segregated domestic food waste digestate using biogas: Effect of temperature and flow rate

De la Rubia, M. Ángeles; Walker, Mark; Heaven, Sonia; Banks, Charles J.; Borja, Rafael

Abstract

Batch experiments to remove ammonia from food waste digestate were set up, and preliminary runs undertaken. These experiments were based on gas stripping in a heated column reactor; the effects of different temperatures (35, 55 and 70 °C) and gas flow rates (0.125, 0.250 and 0.375 min−1) were considered using biogas as the stripping gas. At 35 °C, an increase in the ammonia removal rate by approximately 4.5 times was observed when the flow rate increased from 0.125 to 0.375 min−1. At 55 °C, and flow rates of 0.250 and 0.375 min−1, ammonia removal of 3.46 and 9.38% day−1, respectively, were achieved. The highest values of removal of ammonia were reached at 70 °C: 18.4 and 10.4% day−1, for 0.250 and 0.375 min−1 flow rates, respectively.

Citation

De la Rubia, M. Á., Walker, M., Heaven, S., Banks, C. J., & Borja, R. (2010). Preliminary trials of in situ ammonia stripping from source segregated domestic food waste digestate using biogas: Effect of temperature and flow rate. Bioresource technology : biomass, bioenergy, biowastes, conversion technologies, biotransformations, production technologies, 101(24), 9486-9492. https://doi.org/10.1016/j.biortech.2010.07.096

• Journal Article Type: Article
• Acceptance Date: Jul 23, 2010
• Online Publication Date: Jul 29, 2010
• Publication Date: 2010-12
• Deposit Date: Mar 22, 2021
• Publicly Available Date: Apr 6, 2021
• Journal: Bioresource Technology
• Print ISSN: 0960-8524
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 101
• Issue: 24
• Pages: 9486-9492
• DOI: https://doi.org/10.1016/j.biortech.2010.07.096
• Keywords: Ammonia removal; Anaerobic digestion; Food waste; Stripping
• Public URL: https://hull-repository.worktribe.com/output/3742526
• Related Public URLs: https://eprints.soton.ac.uk/184681/