Abstract
The objective of the research was to determine the optimum application rates of soybean peroxidase (SBP) plus peroxide (SBPP) for reducing odorous VOC emissions from swine manure. Industrial-grade SBP was applied in combination with liquid hydrogen peroxide (H2O2) or powdered calcium peroxide (CaO2) to standard phenolic solutions and swine manure, and emissions were measured in a wind tunnel. The primary odorant in the untreated manure was 4-methylphenol, which accounted for 68-81% of the odor activity value. At the optimum application rate of SBPP (50gL-1), 4-methylphenol emissions were reduced from the swine manure by 62% (H2O2) and 98% (CaO2) after 24h (P<0.0001). The CaO2 had a longer residence time, remaining effective for 48h with 92% reduction in emission rates (P<0.0001), while H2O2 was similar to the control at 48h (P=0.28).
Original language | English (US) |
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Pages (from-to) | 95-104 |
Number of pages | 10 |
Journal | Bioresource Technology |
Volume | 124 |
DOIs | |
State | Published - Nov 2012 |
Externally published | Yes |
Keywords
- Gas chromatography
- Manure
- Odor
- Swine
- Volatile organic compound
ASJC Scopus subject areas
- Bioengineering
- Environmental Engineering
- Renewable Energy, Sustainability and the Environment
- Waste Management and Disposal