skip to main content
Idioma:
Primo Search
Clear Search Box
Search in: Busca Geral
Busca Avançada
Busca por Índices

Greenhouse gas and ammonia emissions from digested and separated dairy manure during storage and after land application

Holly, Michael A. ; Larson, Rebecca A. ; Powell, J. Mark ; Ruark, Matthew D. ; Aguirre-Villegas, Horacio

Agriculture, ecosystems & environment, 2017-02, Vol.239, p.410-419 [Periódico revisado por pares]

Amsterdam: Elsevier B.V

Texto completo disponível

Citações Citado por
  • Título:
    Greenhouse gas and ammonia emissions from digested and separated dairy manure during storage and after land application
  • Autor: Holly, Michael A. ; Larson, Rebecca A. ; Powell, J. Mark ; Ruark, Matthew D. ; Aguirre-Villegas, Horacio
  • Assuntos: Ammonia ; Anaerobic digestion ; Animal wastes ; Carbon dioxide ; Dairy farms ; Dairy manure ; Emissions ; Greenhouse effect ; Greenhouse gas emission ; Greenhouse gases ; Manure ; Manure management ; Manures ; Methane ; Nitrous oxide ; Pollution abatement ; Reduction ; Separation ; Slurries ; Solid-liquid separation ; Storage
  • É parte de: Agriculture, ecosystems & environment, 2017-02, Vol.239, p.410-419
  • Descrição: •Anaerobic digestion of manure reduces greenhouse gas emissions.•Digestion results in increased ammonia emissions and separation reduces this impact.•Solid-liquid separation of manure reduces greenhouse gas emissions.•Combining digestion and separation did not further reduce greenhouse gases.•Storage of digested solids with limited oxygen increased nitrous oxide emission. Manure management at dairy production facilities, including anaerobic digestion (AD) and solid-liquid separation (SLS), has shown strong potential for the abatement of greenhouse gas (GHG) and ammonia (NH3) emissions. However, previous study results are inconsistent and the combined effect of AD+SLS remains to be quantified. This study evaluated the effects of AD, SLS, and AD+SLS on GHG and NH3 emissions during manure storage through land application over nine months. AD and SLS alone significantly (P<0.05) reduced total GHG emissions for storage and land application compared to untreated manure slurries by 25% and 31%, respectively. The majority of that reduction was from methane during storage. SLS had a greater potential for methane reduction in storage than AD, but the variability in digester performance likely impacts the reduction potential. Digestion with subsequent separation further decreased CH4 emissions from 3.9g CO2-eq to 1.3g CO2-eq, but increased emissions of nitrous oxide (N2O) from 0.6g CO2-eq to 2.0g CO2-eq during storage eliminating a further reduction of GHG emissions as compared to AD alone. AD resulted in a gas emission tradeoff as it increased NH3 emissions by 81% during storage, which could be mitigated by subsequent SLS, manure storage covers, or other beneficial management practices.
  • Editor: Amsterdam: Elsevier B.V
  • Idioma: Inglês
Voltar para lista de resultados

  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

Buscando em bases de dados remotas. Favor aguardar.