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Impacts of Acidification on Gaseous Emissions from Treated and Untreated Pig Manure in Animal Farming Systems

This study explores the comprehensive effects of acidification on gaseous emissions from acid-treated and untreated slurry in animal houses and manure stores. The research investigates the reduction in NH3 emission by applying different techniques such as injection, trail hose application, and incorporation of manure in the field. Results suggest that separation technologies could be cost-effective measures for improving environmental sustainability in animal farming practices, particularly through efficient NH3 reduction methods.

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Impacts of Acidification on Gaseous Emissions from Treated and Untreated Pig Manure in Animal Farming Systems

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  1. Whole system effect of acidification in house Acid treated slurry Untreated slurry Gaseous emission Gaseous emission 100 kg N in pig manure 9 kg N 32 kg N NH3emission Animal houses Manure stores Applied in field NH3emission Animal houses Manure stores Applied in field 91 kg N 68 kg N N in slurry N in slurry

  2. Conclusion Separation may be a relatively low cost technology contributing to harmony In house separation is an efficient NH3 reduction technology Ammonia emission in the field is reduced by • Injection: Efficiency related to slot volume • Trail hose application: Efficiency related to crop height • Incorporation of manure applied in the field

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