A5017586308- Odor and Emission Control Technologies
- Composting and Vermicomposting Techniques
- Indoor Air Quality and Microbial Exposure
- Vehicle emissions and performance
- Agriculture Sustainability and Environmental Impact
- Wastewater Treatment and Nitrogen Removal
- Landfill Environmental Impact Studies
- Food Supply Chain Traceability
- Air Quality and Health Impacts
- Industrial Gas Emission Control
- Soil and Water Nutrient Dynamics
Iowa State University
2016-2021
China Agricultural University
2016
Airborne microorganism level is an important indoor air quality indicator, yet it has not been well documented for laying-hen houses in the United States. As a part of Coalition Sustainable Egg Supply (CSES) environmental monitoring project, this study comparatively monitored concentrations and emissions airborne total Gram-negative (Gram−) bacteria three types commercial houses, i.e., conventional cage (CC), aviary (AV), enriched colony (EC) over period eight months covering mid late stages...
Acute releases of hydrogen sulfide (H2S) are serious concern in agriculture, especially when farmers agitate manure to empty storage pits before land application. Agitation can cause the release dangerously high H2S concentrations, resulting human and animal fatalities. To date, there is no proven technology mitigate these short-term toxic gas from manure. In our previous research, we have shown that biochar, a highly porous carbonaceous material, float on gaseous emissions over extended...
Rural communities are affected by gaseous emissions from intensive livestock production. Practical mitigation technologies needed to minimize stored manure and improve air quality inside barns. In our previous research, the one-time surficial application of biochar swine significantly reduced NH3 phenol. We observed that effect decreased with time during 30-day trials. this we hypothesized bi-weekly reapplication could on a wider range odorous compounds using larger scale longer The...
Odor and gaseous emissions from the swine industry are of concern for wellbeing humans livestock. Additives applied to manure surface popular, marketed products solve this problem relatively inexpensive easy farmers use. There is no scientific data evaluating effectiveness many these products. We evaluated 12 additive that currently being on their in mitigating odor manure. used a pilot-scale system simulating storage with controlled ventilation headspace periodic addition This dataset...
Odorous gas emissions from swine production have been a concern for neighbors and communities near livestock farms. Manure storage is one of the main sources gaseous emissions. additive products are marketed as simple solution to this environmental challenge. additives user-friendly producers can be applied (e.g., periodically poured into manure) without changing current manure structure. Little scientific data exist on how these perform in mitigating manure. The research objective was...
Ammonia (NH 3 ) emissions from animal agriculture can cause eutrophication of water ecosystems and are precursors to secondary particulate matter (PM 2 .5 ). NH stored swine manure represent nutrient loss affecting the fertilizing value manure. The short-term emission bursts occur when farmers agitate before emptying storage fields. There is no proven technology mitigate gaseous during agitation, while hazards acute releases (e.g., H S) well-known. Biochar mitigates over long-term. objective...
The rural communities are affected by gaseous emissions from intensive livestock production. Practical mitigation technologies needed to minimize stored manure and improve air quality inside barns. In our previous research, the one-time surficial application of biochar swine significantly reduced NH3 phenol. We observed that effect decreased with time during 30-day trials. this we hypothe-sized bi-weekly reapplication could on a wider range odorous compounds using larger scale longer...
Hydrogen sulfide and ammonia are always a concern in the livestock industries, especially when farmers try to clear their manure storage pits. Agitation of can cause dangerously high concentrations harmful agents such as H2S NH3 be emitted into air. Biochar has ability sorb these gases. We hypothesized that applying biochar on top create an effective barrier protect animals from exposure H2S. In this study, two kinds were tested, highly alkaline, porous (HAP, pH 9.2) made corn stover red oak...
<b><sc>Abstract.</sc></b> Hydrogen sulfide and ammonia are always a concern in the livestock industries, especially when farmers try to clear their manure storage pits. Agitation of can cause dangerously high concentrations harmful agents such as H<sub>2</sub>S NH<sub>3</sub> be emitted into air. Biochar absorb these gases. We hypothesized that applying biochar on top create an effective barrier protect animals from exposure H<sub>2</sub>S. In this study, one kind was tested, highly...
<b><sc>Abstract.</sc></b> <b>Odorous gas emissions from swine production are the unwanted by-product of farmers. Manure additive has a great potential to solve this problem. additives considered low-cost and user-friendly; they can be implemented without changing current manure storage practices. The objective study was evaluate effectiveness 12 commercial on mitigating odor, ammonia (NH<sub>3</sub>), hydrogen sulfide (H<sub>2</sub>S), greenhouse (GHG), volatile organic compounds (VOCs)...
<b>Abstract.</b> The rural communities are affected by gaseous emissions from intensive livestock production. Practical mitigation technologies needed to minimize stored manure and improve air quality inside barns. In our previous research, the one-time surficial application of biochar swine significantly reduced NH<sub>3</sub> phenol. We observed that effect decreased with time during 30-day trials. this we hypothesized bi-weekly reapplication could on a wider range odorous compounds using...