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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

Authors

M. Ángeles De la Rubia

Profile image of Mark Walker

Dr Mark Walker Mark.Walker@hull.ac.uk
Lecturer in Sustainable Engineering Systems

Sonia Heaven

Charles J. Banks

Rafael Borja



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/

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