Uppsatser om biomass production
61 uppsatser · sida 2 av 5
Examensarbete, avancerad nivå · SLU
As demand for renewable energy is increasing rapidly, the market for biomass pellets is expected to continue to grow in the near future. Most of the new raw materials that are discussed for pellet production have one thing in common; the production costs will increase compared …
a study about the production environment and international competitiveness of wood pellets from British Columbia
Masteruppsats · SLU
… on the South Korean market is dependent on how much wood pellets or similar biomass based products that can be delivered from Asian countries which currently have a lower price level. Several future challenges for the future wood pellet export have been identified in this study …
en studie om lantbrukarnas alternativkostnader vid odling av rörflen
Examensarbete · SLU
… by 20 percent the year of 2020. To reach these goals, the use of energy from biomass in the European Union will have to increase by 117 percent. Forest is the primary producer of bio energy in Sweden. Farmland as a producer of bio-energy is a scantly used resource. 70 000 …
en jämförande studie av fyra flödeskedjor från avlägg till förbrukare
Examensarbete · SLU
… has increased by about 100 000 hectares per year. In later years the price for biomass energy has increased to the same level as pulp wood. The high price on biomass energy and the large areas of stands in the need of brushing has created a new market with its own technical …
Examensarbete · SLU
… Swedish lakes have been a problem along time in Sweden. The major concern is production and accumulation of the most toxic form of mercury; methyl mercury (MeHg). Consequently, in about half of our 83 000 lakes fish contain concentrations above the recommended limit for human …
Examensarbete, avancerad nivå
… the microalgae are digested in mesophilic conditions. In contrast to other biomass suitable for co-digestion microalgae have the advantage of being able to grow in waste water and reduce the pollutants in the water phase. Cultivation of microalgae will therefore not compete with …
Magisteruppsats · SLU
… The treatments with high nutrient levels showed the highest levels of biomass but the nutrients had to be added gradually to avoid osmotic stress. However the treatments with a small nutrient supply produced more biomass per unit of applied nutrients than treatments with high …
från kvarterspark till stadsdelspark
Kandidatuppsats · SLU
… The treatments with high nutrient levels showed the highest levels of biomass but the nutrients had to be added gradually to avoid osmotic stress. However the treatments with a small nutrient supply produced more biomass per unit of applied nutrients than treatments with high …
ett småskaligt försök
Kandidatuppsats · SLU
… The treatments with high nutrient levels showed the highest levels of biomass but the nutrients had to be added gradually to avoid osmotic stress. However the treatments with a small nutrient supply produced more biomass per unit of applied nutrients than treatments with high …
Kandidatuppsats · Linköpings universitet
… required for the plants to be able to grow in wastewater and the amounts of biomass they can produce have also been studied. The results show that Chlorella is capable of a very high uptake of nutrients in photobioreactors with high nutrient loadings. With an ammonia uptake …
Kandidatuppsats · Linnéuniversitetet
… or energy consuming building materials,with renewable raw material such as biomass) didn’t give the result that waspredicted. It appears that the use of pulpwood is very important, if it goes tothe pulp industry no substitution effect occurs, but if all pulp will be used …
a study of producers using forestry- or agricultural sector feedstock
Magisteruppsats · SLU
… resources in Sweden than the production of synthetic diesel of cellulosic biomass. The firms using forestry sector feedstock were otherwise facing similar difficulties and mostly with the authorities. As they were getting more established they were expecting competition …
Magisteruppsats · SLU
… is one alternative energy fuel that can be produced from different types of biomass. Second generation bioethanol comes from fermentation of lignocellulosic material and can be seen as a more environmental friendly alternative as e.g. forest residues and agricultural by-products …
Kandidatuppsats · Umeå universitet
… with low and intermediate humic content are assumed to have increased their biomass production during the ice-free season which contributed to elevated amount of available organic carbon to be mineralized to gas during winter. The absence of a fertilization effect in the very …
Examensarbete, avancerad nivå · Uppsala universitet
… degradable (SR), soluble inert (SI), particulate inert (XI) and particulate biomass (XB). To create the model FlowMac? was used as a base. FlowMac? is a library module in Extend adapted for pulp and paper mills. Some of the blocks only needed a slight modification while others …