Download Abatement Techniques for Reducing Emissions from Livestock by Mohamed Samer PDF

By Mohamed Samer

This booklet identifies destiny medical learn priorities for constructing emissions inventories, emissions abatement strategies and mitigation options so that it will enhance and maintain cattle construction that's in accordance with weather switch variation.

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By Mohamed Samer

This booklet identifies destiny medical learn priorities for constructing emissions inventories, emissions abatement strategies and mitigation options so that it will enhance and maintain cattle construction that's in accordance with weather switch variation.

Show description

Read or Download Abatement Techniques for Reducing Emissions from Livestock Buildings PDF

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Extra info for Abatement Techniques for Reducing Emissions from Livestock Buildings

Example text

At a typical 5 s empty bed residence time and 55 % media moisture content, a mixture of compost and wood chips can achieve average reduction efficiency of 78, 78, and 81 % for odor, H2S, and NH3, respectively. Each pollutant needs a minimum EBRT depending on its loading rate and media moisture content. EBRTs between 4 and 10 s should be sufficient for a biofilter designed to control odors and VOCs from agricultural sites provided the moisture content is controlled adequately (Chen and Hoff 2009). Higher loading rates and lower media moisture content generally need a longer EBRT for an effective removal.

The stratified sampling and the individual farm calculations allow the comparison of emissions from specific regions and altitudes and the study of the variability among farms. This approach permits a more detailed analysis of the regional distribution of GHGs and NH3 emissions as well as a more robust and standardized monitoring of the future development of emissions. The emissions inventory can be then analyzed and implemented to develop effective GHG and NH3 mitigation strategies focusing on the largest emissions sources.

Nitrogen excretion rates, which affect N2O emissions from manure, are based on dry matter intake (DMI) through diet (Vergé et al. 2012). Therefore, diet manipulation to improve animal N utilization efficiency is one of the most effective measures to reduce livestock NH3 emissions compared to housing and manure storage techniques (Carew 2010). Similarly, it is an effective measure to reduce N2O emissions. On the other hand, the reliance of beef production on roughages makes enteric methane a major term in the GHG budget of beef cattle (Capper 2012; IPCC 2006).

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