Preliminary trials of in situ ammonia stripping from source segregated domestic food waste digestate using biogas: effect of temperature and flow rate
Preliminary trials of in situ ammonia stripping from source segregated domestic food waste digestate using biogas: effect of temperature and flow rate
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.
ammonia removal, anaerobic digestion, food waste, stripping
9486-9492
de la Rubia, M. Ángeles
6f520899-cf5f-49b0-ba02-428d39ec842b
Walker, Mark
62448ed1-2c1a-4be6-acd8-4f8053efd392
Heaven, Sonia
f25f74b6-97bd-4a18-b33b-a63084718571
Banks, Charls J.
5c6c8c4b-5b25-4e37-9058-50fa8d2e926f
Borja, Rafael
68c613c6-300d-4663-b6ec-7f9357b7221b
December 2010
de la Rubia, M. Ángeles
6f520899-cf5f-49b0-ba02-428d39ec842b
Walker, Mark
62448ed1-2c1a-4be6-acd8-4f8053efd392
Heaven, Sonia
f25f74b6-97bd-4a18-b33b-a63084718571
Banks, Charls J.
5c6c8c4b-5b25-4e37-9058-50fa8d2e926f
Borja, Rafael
68c613c6-300d-4663-b6ec-7f9357b7221b
de la Rubia, M. Ángeles, Walker, Mark, Heaven, Sonia, Banks, Charls J. and Borja, Rafael
(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, 101 (24), .
(doi:10.1016/j.biortech.2010.07.096).
(PMID:20709537)
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.
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Published date: December 2010
Keywords:
ammonia removal, anaerobic digestion, food waste, stripping
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Local EPrints ID: 184681
URI: http://eprints.soton.ac.uk/id/eprint/184681
ISSN: 0960-8524
PURE UUID: b9bed354-96e7-4262-a4fc-438264e4ba33
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Date deposited: 06 May 2011 10:44
Last modified: 15 Mar 2024 02:52
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Author:
M. Ángeles de la Rubia
Author:
Mark Walker
Author:
Rafael Borja
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