On-farm Evaluation of Wood Bark-based Biofilters for Reduction of Odor, Ammonia, and Hydrogen Sulfide Emissions
Odor and gas emissions from confined swine facilities can be of serious concem for swine farmers, and the general public.Biofiltration has been recognized as one of the most promising and cost-efficient technologies for mitigating the odor and gas emissions.Two down-flow wood bark-based biofilters were built at a commercial swine nursery facility to reduce odor and gas emissions from the ventilation exhaust.The biofilters were evaluated for their effectiveness in mitigating odor, ammonia (NH3), and hydrogen sulfide (H2S) emissions under actual swine farm conditions.The test results showed that the highest reductions in odor, NH3, and H2S at empty bed residence times (EBRT) of 1.6-3.1 s, were 73-76%, 95-98%, and 96-100%, respectively.A minimum media depth of 254 mm, moisture content between 35-55%, and EBRT greater than 2-3 s are recommended for effective operation of wood bark-based biofilters at swine farms.
Down-flow biofilter mitigation gas concentrations swine abatement
Lide Chen Gopi Krishna Kafle Howard Neibling Brian He
Department of Biological and Agricultural Engineering, University of Idaho, Twin Falls, Idaho 83301, USA
国际会议
The 2015 International Symposium on Animal Environment and Welfare(动物环境和福利国际研讨会)
重庆
英文
99-106
2015-10-23（万方平台首次上网日期，不代表论文的发表时间）