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Showing result 1 - 5 of 55 essays matching the above criteria.
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1. Evaluation of five hardwood species from Zambia to produce fuel pellets for cooking purposes : Study with a single pellet press including pellet production, post production testing and X-ray examinations
University essay from Karlstads universitet/Avdelningen för energi-, miljö- och byggteknikAbstract : 81% of the population in sub-Saharan Africa relies on charcoal and firewood to cover their energy needs for cooking. In Africa charcoal is usually produced by burning tree in a traditional kilns and then the food is cooked with a carbon-fired stoves indoors. READ MORE
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2. Utilizing wood ash to stimulate algal growth in mine waters from northern Sweden
University essay from Luleå tekniska universitet/Geovetenskap och miljöteknikAbstract : Acid rock drainage (ARD), caused by the oxidation of sulphide bearing minerals, continues to be an environmental impact of both closed and operational mines, leading to waters with low pH values and high metal concentrations (Park et al., 2019). READ MORE
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3. Analysis and Valorization of Bark from Silver Birch, Scots Pine, and Norway Spruce : Compositional analysis of bark from common Swedish trees in forestry, to optimize sustainability procedures and monetary value of bark residue
University essay from Umeå universitet/Kemiska institutionenAbstract : Silver birch, Scots pine, and Norway spruce are the three most common types of trees in Sweden and make up to 90% of standing volume in Swedish forests (Skogsstyrelsen 2015, 3). With millions of cubic meters of wood being cut down annually, bark and other residues that cannot be used for sawn timber is left over and burnt for energy. READ MORE
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4. Promoting Circular Economy By Partial Replacement Of Cement With SCMs : A Review On Wood Ash
University essay from Högskolan i Borås/Akademin för textil, teknik och ekonomiAbstract : The European Commission adopted the first action plan for the transition to a circular economy in 2015. As a result, the concrete industry’s goal is for all concrete produced in Sweden to be climate neutral by 2045. READ MORE
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5. Rumen metabolism and digestibility in dairy cows offered diets with forest by-products
University essay from SLU/Dept. of Animal Nutrition and ManagementAbstract : Swedish dairy industry faced a cris i s of feed shortage in summer of 2018, followed by a dry autumn. The forage shortage was severe in some regions. During that period Swedish g overnment intervened by introducing a 1. READ MORE