Hotta Shinya, Funamizu Naoyuki
Department of Environmental Engineering, Graduate School of Engineering, Hokkaido University, Kita-13, Nishi-8, Kita-ku, Sapporo, Japan.
Bioresour Technol. 2008 Jan;99(1):13-7. doi: 10.1016/j.biortech.2006.12.001. Epub 2007 May 7.
The aim of this study was to obtain an evolution of the ammonification potentials in stored urine with fecal contamination. It was found that ammonification stopped after 20 days at 30 degrees C although more than half of urea still remained. The evolution of ammonification potentials showed three simple phases: the potential increased during the first 3.5 days, after which it decreased and reached a constant state significantly more than initial phase. It was concluded that the ammonification potentials remained more than the initial value after ammonia concentration was at the stable level. Thus inhibition process rather than decline process was exhibited in stored urine with fecal contamination as shown in constant phase.
本研究的目的是获取受粪便污染的储存尿液中氨化潜力的变化情况。结果发现，在30摄氏度下，20天后氨化作用停止，尽管仍有超过一半的尿素残留。氨化潜力的变化呈现出三个简单阶段：在最初的3.5天内潜力增加，之后下降并显著达到一个比初始阶段更稳定的状态。得出的结论是，在氨浓度达到稳定水平后，氨化潜力仍高于初始值。因此，如在稳定阶段所示，受粪便污染的储存尿液中表现出的是抑制过程而非下降过程。
