63 uppsatser · sida 3 av 5
… reach sustainable energy use. Two ways to work towards this is to recycle wood ashes to the forest as nutrient compensation and extract biogas from combustion of biomass. The aim with this study was to decide whether wood ashes that been used for biogas upgrading with …
… reach sustainable energy use. Two ways to work towards this is to recycle wood ashes to the forest as nutrient compensation and extract biogas from combustion of biomass. The aim with this study was to decide whether wood ashes that been used for biogas upgrading with …
… Sludge from sewage treatment works have a high nitrogen level, high ash and moisture levels and thereby a low heating value. It also contains a lot of mercury. This type of sludge is, unlike the other wastes in this study, homogenous and differs only between sewage treatment …
… and from 9 other farms. The manure samples were analysed for dry matter, ash, starch, pH-value and particle size (wet sieved). Also, the consistency of the manure was determined on a 5-point scale and the colour and smell were noticed. Penn State Forage Particle Separator was …
… grain need more work than heating with pellets, because the high contents of ash in grain. Even if you choose pellets instead of grain the calculation shows good results. Because peat is an excellent but fairly untested raw material for pelletsproduction we have chosen to watch …
… intrusions exposed on the seafloor. The provenance could also be volcanic ash or subvolcanic layered intrusions from an ultramafic volcanism with a composition similar to Alaskan Ultramafics. In the large sample from Zumaia and in both samples from Stevns Klint spherical …
… of the feces was estimated. Creatinine in the urine and acid insoluble ash in the faeces were used as markers to calculate the daily amount of urine and faeces produced. The results showed that the cows excreted more magnesium in the urine when they were given extra magnesium in …
… the own work should not require too heavy efforts, the transport of fuel and ash etc should be automized.
… and the lake Fursjön, has intermediate levels of nitrogen, but high level of ash constituents and relatively high pH values. The water in the stream and the lake also showed high pH and alkalinity, but no signs of an ongoing leaching of mineral nitrogen or phosphorus from the …
… soils. All objects, also those previously limed three to four decades ago, or ash fertilized as late as three to four years ago, were developing mohr layers and had top soil pH in the order of magnitude of natural spruce forest on same soil type.
… dried, weighed and analysed for metabolisable energy, protein, NDF, iNDF and ash contents. The result showed that for Hykor the visually scored phenological stage agreed poorly with the results from the detailed analysis performed in the lab, especially at late reproductive …
… should, if used, be vertical assembled to ease the collection of the ash. When burning wood powder for generation of flue gases is it suitable to take the wood powder falling from the pellets production line and burn it in a BioSwirl. The wood powder production will then take …
förslag på ersättande träd för tre utvalda askar i stadsmiljö - en följd av askskottsjukans framfart
År 2001 upptäcktes askskottsjukan i Sverige för första gången efter att den härjat i Polen och Litauen sedan mitten på 1990-talet. Syftet med det här examensarbetet är att, med utgångspunkt utifrån att asken, Fraxinus, kan vara hotad på grund av askskottsjukan, hitta ersättande …
jordförbättring och/eller lösning på ett avfallsproblem?
… the fresh material. Four composts were constructed of which two contained wood ash. Temperature and pH where measured during the process, visual estimations where done as well. At the end further chemical analyses where made with the end product. The Solvita test where used to …
… were also investigated. The stored biomass wasanalysed for moisture content, ash content and heating value.The biomass losses that were based on the dry matter losses and reduction of thenet heating value of the fuel were limited in the piles of recovered wood. The barkpiles had …
