Sökning: "biofertilizer"
Visar resultat 1 - 5 av 7 avhandlingar innehållade ordet biofertilizer.
1. Anaerobic digestion of horse manure : renewable energy and plant nutrients in a systems perspective
Sammanfattning : In horse keeping horse manure is produced, which can be utilized as a fertilizer or considered a waste. Horse manure constitutes a resource in terms of both plant nutrients and energy. In addition energy policies and objectives aim at replacing fossil fuels with renewable energy sources. LÄS MER
2. From waste problem to renewable energy resource : exploring horse manure as feedstock for anaerobic digestion
Sammanfattning : A sustainable energy system requires, according to energy policies, reduced emissions of greenhouse gases, increased ratio of renewable sources of energy and more efficient use of energy. Horse manure could be regarded as waste, but also as a resource for renewable energy and plant nutrients. LÄS MER
3. Anaerobic digestion of crop and waste biomass: Impact of feedstock characteristics on process performance
Sammanfattning : Anaerobic digestion provides an array of positive environmental benefits such as reducing greenhouse gas emissions, replacing mineral fertilizers, producing renewable energy and treating waste. However, pitfalls in anaerobic digestion such as poor methane yields, process instability, process failure and regional shortages of feedstock have limited the full exploitation of the anaerobic digestion process. LÄS MER
4. Valorisation of fish waste biomass through recovery of nutritional lipids and biogas
Sammanfattning : Commercial fish catch in Eastern Africa is dominated by Nile Perch. Of the fish that is processed for human consumption, 30-40% is wasted. Currently, these wastes are not fully utilized; they are sold off at low price, converted to low valued products or left to decompose leading to environmental pollution and wastage of bioresource. LÄS MER
5. Renewable Energy and Nutrient Valorization from Anaerobic Digestion : Resource-Efficient Solutions
Sammanfattning : 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. LÄS MER