Essays about: "pig slurry"

Showing result 1 - 5 of 7 essays containing the words pig slurry.

  1. 1. Increase of biogas production by incorporating residual streams from agriculture

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : Stephanie Fjäll; [2022]
    Keywords : Anaerobic digestion; Agricultural residue; Lignocellulosic biomass; Mechanical pretreatment; Biogas production; Biorefinery; Chemical engineering; Agriculture and Food Sciences; Technology and Engineering;

    Abstract : To expand the biogas production in Region Västra Götaland (RVG), residual streams from the agricultural sector can function as a large-scale supplier of biomass. The production of biogas decreases the dependence of fossil fuels and the digestate that is formed can also be returned to the agricultural sector, creating a closed loop. READ MORE

  3. 2. Vilka aspekter finns det att beakta kring gödselseparering och dess transporter?

    University essay from SLU/Dept. of Biosystems and Technology (from 130101)

    Author : Emil Karlsson; Magnus Nyholm; [2020]
    Keywords : gödselseparation; fosfor; övergödning; transport och dess miljöpåverkan;

    Abstract : I dagens jordbruk finns det en ojämn fördelning utav näringsämnena från den animaliska gödseln. De flesta djurgårdarna är belägna i skogs och mellanbygd där det oftast inte finns tillräckligt med spridningsareal. READ MORE

  4. 3. Practical strategies for acidification of animal slurry in storage

    University essay from SLU/Dept. of Soil and Environment

    Author : Emil Larsson; [2018]
    Keywords : buffer capacity; foam; NH3 emission; pH evolution; sulphuric acid;

    Abstract : Animal slurry is a source of NH3 emissions which results in loss of N and decrease the nutritive value of slurry. Slurry stores in Sweden represents approximately 30% of total NH3 emissions from agricultural activities in the country. READ MORE

  5. 4. Systematic Assessment of Straw as Potential Biogas Substrate in Co-digestion with Manure

    University essay from Linköpings universitet/Industriell miljöteknik; Linköpings universitet/Tekniska högskolan

    Author : Sutina Duong; [2014]
    Keywords : Biogas; substrate; straw; systematic assessment; renewable energy; biofertilizer; anaerobic digestion; Biogas; biogassubstrat; halm; systematisk utvärdering; förnybar energi; biogödsel; rötning;

    Abstract : This work was carried out at Biogas Research Center (BRC) and the company Biogas in Vadstena. The aim was to systematically evaluate new substrates for biogas production. In particular, this case investigated the potential of straw in co-digestion with manure and slurry from pig, chicken and dairy. READ MORE

  6. 5. Environmental impacts of alternative co-substrates for biogas production : a comparative life cycle assessment

    University essay from SLU/Dept. of Urban and Rural Development

    Author : Giovanna Catalina Croxatto Vega; [2012]
    Keywords : biogas; pig slurry; substrate; environmental impacts; wheat straw; OFMSW; organic fraction; municipal solid waste; solid fraction; separated slurry; LCA; life cycle assessment;

    Abstract : In recent years, the production of biogas from animal manure has gained increased attention in Denmark, as it has been identified as an important resource to reach the goal of a fossil free society by 2050. In addition, manure management with biogas production has been recognized as a viable way to reduce environmental impacts from animal production systems. READ MORE