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Long-term assessment of efficacy of permeable pond covers for odour reduction

Hudson, N. and Ayoko, G.A. and Collman, G. and Gallagher, E. and Dunlop, M. and Duperouzel, D. (2008) Long-term assessment of efficacy of permeable pond covers for odour reduction. Bioresource Technology, 99 (14). pp. 6409-6418.

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Article Link(s): http://dx.doi.org/10.1016/j.biortech.2007.11.058

Publisher URL: http://www.elsevier.com

Abstract

Three anaerobic ponds used to store and treat piggery wastes were fully covered with permeable materials manufactured from polypropylene geofabric, polyethylene shade cloth and supported straw. The covers were assessed in terms of efficacy in reducing odour emission rates over a 40-month period. Odour samples were collected from the surface of the covers, the surface of the exposed liquor and from the surface of an uncovered (control) pond at one of the piggeries. Relative to the emission rate of the exposed liquor at each pond, the polypropylene, shade cloth and straw covers reduced average emission rates by 76%, 69% and 66%, respectively. At the piggery with an uncovered control pond, the polypropylene covers reduced average odour emission rates by 50% and 41%, respectively. A plausible hypothesis, consistent with likely mechanisms for the odour reduction and the olfactometric method used to quantifying the efficacy of the covers, is offered.

Item Type:Article
Additional Information:© Elsevier Ltd.
Keywords:Anaerobic; cover; odour; permeable; pond.
Subjects:Science > Science (General)
Technology > Technology (General)
Animal culture > Swine
Deposited On:11 Feb 2009 04:40
Last Modified:20 Apr 2011 23:03

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