Effects of Acidification on Ammonia Emissions from Pig Digested Slurry
Reduction effects of acidification with different pH value adjustments on ammonia (NH,)emissions from digested slurry storage were investigated.Three parallel pilot-scale experiments were conducted including two different acidified treatments compared to the control group with non-treatment in this study.Pig digested slurry was stored in specially designed reactors.The pH values and temperatures in digested slurry were continuously monitored by sensors.Ammonia emissions from the 9 reactors were regularly sampled by atmospheric sampling instrument and then determined byspectrophotometer.Ammoma emissions were high for non-treated digested slurry during storage.The reduction efficiency on NH7 emissions was 44.7% for treated group with pH value adjusted to 5.5,while no significant difference was found in treated group with pH value acidified to 6.5 compared to control group.
acidification digested slurry ammonia reduction effects
Huang Dandan Wang Kaiying
College of Biosystems Engineering and Food Science,Zhejiang University,China
国际会议
XVIth International Congress on Animal Hygiene(第十六届动物卫生国际会议(ISAH 2013))
南京
英文
369-373
2013-05-05（万方平台首次上网日期，不代表论文的发表时间）