Search for dissertations about: "digestate"
Showing result 1 - 5 of 29 swedish dissertations containing the word digestate.
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1. Biogas production from a systems analytical perspective
Abstract : Anaerobic digestion and the production of biogas can provide an efficient means of meeting several objectives concerning energy, environmental and waste management policy. Interest in biogas is increasing, and new facilities are being built. READ MORE
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2. Biological Pretreatment and Dry Digestion Processes for Biogas Production
Abstract : Biogas technology has been used quite extensively to generate renewable energy from organic wastes while also recycling nutrients in the wastes and reducing harmful emissions. However, the challenges of low biogas yield from recalcitrant and inhibitory solid wastes together with high construction and operation costs of bioreactors have impeded optimal performance through this process. READ MORE
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3. Renewable Energy and Nutrient Valorization from Anaerobic Digestion : Resource-Efficient Solutions
Abstract : This thesis presents a comprehensive analysis aimed at understanding process performance, methane yield, and key influencing factors within the context of solid-state anaerobic digestion (SS-AD). SS-AD is used to treat organic material with high solids content, which can be challenging to address by alternative methods. READ MORE
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4. Quality and function of anaerobic digestion residues
Abstract : The growing number of biogas plants in Europe has resulted in increased production of nutrient-rich digestate, which has potential as fertiliser on arable land. Many different organic materials can be degraded in the anaerobic digestion process, with most macronutrients and micronutrients retained in the digestate. READ MORE
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5. Swedish farm-scale biogas production-substrates and operating parameters
Abstract : Biogas production from agricultural waste streams provides three value streams: production of fossil-free energy, reduced greenhouse gas (GHG) emissions and production of nutrient-rich digestate that can be used as fertiliser. However, farm-based biogas production is expanding rather slowly. READ MORE