110 uppsatser · sida 6 av 8
Självständigt arbete i teknisk fysik med materialvetenskap & Självständigt arbete i kemiteknik
The aim with this study was to investigate the effects a change of manufacturing process would have on the mechanical properties of drill bits made of a WC/Co composite used for stone cutting. The method used today is sintering, where the material is heated in a conventional …
evaluation of methods, microbial activity and agronomic implications
… ita potential fertilizer for arable cropping. However, it also contains heavy metals and toxic organic compounds and it is therefore in need of evaluation before usage.Microbial tests were performed aiming to evaluate the agronomic traits of four different BR and to find a …
Kremering är idag det vanligaste jordfästningssättet i Sverige, de allra flesta som avlider kremeras och gravsätts i urna. Frågan om hur de metaller som finns i kroppen men inte får plats i urnan hanteras har hittills inte väckt så stor uppmärksamhet, speciellt inte ur …
En studie om ekonomisk transition under perioden åren 1993 fram till 2004
… show that Latvia's main comparative advantage lies in semi-precious and basic metals. A comparison of the export flows from Latvia to Russia and to the EU15 from 1993 to 2004 shows two distinct trading changes. First, the trade has shifted primarily from Russia to EU countries …
en enkätstudie hos skogstjänstemän
… affected by siltation and acidification leading to increased levels of heavy metals and methyl mercury. The purpose of this study was to investigate why there is damage to the ground when working with the slash in forest management from the forest officer point of view. A …
the case of conflict minerals in global supply chains
… on the modern global market, because after they are converted into refined metals, they end up for example in electronic consumer products such as computers, cell phones and digital cameras, thus linking the severe human rights atrocities in the DRC with branded electronic …
en analys av bronsfynd från husgrund 6, Västergarn, Gotland
This essay is an analysis of the objects made of bronze found in an excavation Västergarn parish, Gotland, in 2010, conducted by the University of Gotland. The studied material presented in this essay comes from contexts inside, as well as nearby the foundation of a medieval …
… The contaminations found in the area are arsenic, zinc, boron and other heavy metals which can cause severe damage in the environment and people’s health. A historical analysis has been crucial to study the situation of responsibility. The time dimension is crucial according to …
En undersökning av föroreningar i mark- och vatten samt ansvaret för dessa enligt miljöbalken
… The contaminations found in the area are arsenic, zinc, boron and other heavy metals which can cause severe damage in the environment and people’s health. A historical analysis has been crucial to study the situation of responsibility. The time dimension is crucial according to …
Analys av tungmetallers distribution inom jordprofiler tagna från Abiskoområdet, nordvästra Sverige
… the latter contained the highest amounts of organic matter that bind these metals the Pb and Hg concentrations increased. The highest concentrations of Pb (47 mg/kg) and Hg (359 µg/kg) are found in the surface layer (about7 cmdeep) at the edges of the circles. In a buried layer …
… management. In my study I have mainly focused on textile dyes, salts and metals and their routes during wastewater treatment.This paper is partly a literature review, which I began by identifying the pollutants discharged from each textile process. Then I studied wastewater and …
Underlag för internationella riktlinjer inom projektet Sweden Textile Water Initiative
… management. In my study I have mainly focused on textile dyes, salts and metals and their routes during wastewater treatment.This paper is partly a literature review, which I began by identifying the pollutants discharged from each textile process. Then I studied wastewater and …
… soils gives with significant lowerings of pH and mobilization of heavy metals influence large spectra of our society from fisheries to agriculture to construction. Mapping these soils is consequently of great importance and the methods of doing this is very much lacking in …
Samband mellan sänkningsnivåer och vattenkemi i sjöar på sulfidrika sedimentjordar
… sediments, in order to better understand their contribution of heavy metals and sulfuric acid. Also, is it a reasonable method to use the reduced lake area in order to quantify the gradient? The survey was conducted by collecting water samples from reference lakes and lowered …
… to individuals, and recycling of the wind turbine, as it mostly consists of metals and therefore is recyclable. In these three scenarios it is assumed that the sites for wind turbines are being reused for new larger wind turbines that produce more energy. Two additional …
