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  • reducing odorous voc emissions from swine manure using soybean peroxidase and peroxides

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 665
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     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 (50 g l−1), 4-methylphenol emissions were reduced from the swine manure by 62% (h2o2) and 98% (cao2) after 24 h (p< 0.0001). the cao2 had a longer residence time, remaining effective for 48 h with 92% reduction in emission rates (p< 0.0001), while h2o2 was similar to the control at 48 h (p = 0.28).

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