Szanto G L, Hamelers H V M, Rulkens W H, Veeken A H M
Department of Environmental Technology, Wageningen University, P.O. Box 8129, 6700 EV Wageningen, The Netherlands.
Bioresour Technol. 2007 Oct;98(14):2659-70. doi: 10.1016/j.biortech.2006.09.021. Epub 2006 Nov 7.
Straw-rich manure from organic pig farming systems was composted in passively aerated static piles to estimate the effect of monthly turning on organic matter degradation and NH(3), N(2)O and CH(4) emissions. Turning enhanced the rate of drying and degradation. The four-month treatment degraded 57+/-3% of the initial organic matter in the turned piles, while only 40+/-5% in the static piles. The turned piles showed low ammonia and N(2)O emissions, 3.9+/-0.2% and 2.5+/-0.1% of total initial nitrogen, respectively. Static piles gave low ammonia (2.4+/-0.1% N(initial)), but high (9.9+/-0.5% N(initial)) N(2)O emissions. Prevalence of anaerobic regions in the static system was supported by the higher CH(4) emissions, 12.6+/-0.6% VS(degraded) for the static vs. 0.4+/-0.0% VS(degraded) for the turned system. It was shown, that straw-rich pig manure with very low C/N ratios could be composted directly without significant NH(3) and N(2)O emissions if turned on a monthly basis.
来自有机养猪系统的富含秸秆的粪便在被动通风的静态堆中进行堆肥处理，以评估每月翻堆对有机物降解以及氨（NH₃）、氧化亚氮（N₂O）和甲烷（CH₄）排放的影响。翻堆提高了干燥和降解速率。经过四个月的处理，翻堆堆中的初始有机物降解了57±3%，而静态堆中仅降解了40±5%。翻堆堆的氨和N₂O排放量较低，分别占初始总氮的3.9±0.2%和2.5±0.1%。静态堆的氨排放量较低（2.4±0.1%初始氮），但N₂O排放量较高（9.9±0.5%初始氮）。静态系统中较高的CH₄排放量（静态堆为12.6±0.6%挥发性固体降解量，翻堆系统为0.4±0.0%挥发性固体降解量）表明静态系统中存在厌氧区域。结果表明，如果每月翻堆，碳氮比非常低的富含秸秆的猪粪可以直接进行堆肥处理，且不会产生大量的NH₃和N₂O排放。
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