Sök:

Sökresultat:

371 Uppsatser om Metal contaminated soils - Sida 1 av 25

The legacy of the mill : a metal polluted forest soil in Gusum

Soils in a metal contaminated site on Stångberget in Gusum in southeastSweden were investigated and compared to relatively unaffected soils a fewkilometres away. Pollution came from historical release of untreated flue gasesfrom a brass mill. The objective was to find information on how high the metalconcentrations are, if metals from the polluted soil affect the surroundings andif the metal contamination affects the microbial community. The soil wasinvestigated using several different methods, such as field XRF measurements,chemical analysis of metal, carbon and nitrogen content, pH, acid neutralizingcapacity, texture, soil depth, field leach tests, sequential extraction and microbialfunctional profiles. The study showed that copper and zinc concentrationswere above Swedish Environmental Protection Agency guidelines for lesssensitive land use on the entire investigated area.

Arboga Mekaniska Verkstad : Förslag på saneringsåtgärder gällande gjuteriet och plåtverkstaden

The industrialization in Sweden has increased the large number of areas that have been contaminated with various types of pollution. One of those sites are the property Höjen 3:24 in Arboga where ?Arboga Mekaniska Verkstad? once been. The property wants to increase the use of the old former foundry building with the adjacent ?plate-workshop? and believe there are two options for the building: That the building either should be used as a warehouse/concert hall, or rebuilt into a cultural center. An environmental evaluation has shown that the levels of heavy metals are over the Swedish environmental protection agency guidelines of less sensitive land.

Undersökningsmetodik för klorerade lösningsmedel i marken

Chlorinated solvent are volatile organic substances that can be harmful for humans and for the environment. Examples of common chlorinated solvents are perchloroethene, PCE, and trichloroethene, TCE. Chlorinated solvents appear as contaminants in soils primarily where they have been used as washing fluids in dry-cleaning facilities or as degreasers in metal industries. Chlorinated solvents are DNAPLs (dense non-aqueous phase liquids), which means that they are not easily dissolved in water and that they sink to the bottom of the aquifer. Adsorption to soils is low so chlorinated solvents are mobile in soils.

Anaerob nedbrytning av TNT : Ett bioreaktorförsök på Vingåkersverken

A bioslurry reactor was built for the bioremediation of TNT contaminated waste from the demilitarization industry. The field test was conducted at Vingåkersverken in Vingåker, Sweden, to see if results from laboratory studies could be repeated in a full scale reactor. The goal of the project was to optimize the reactor to such a degree that it could be used to handle the waste produced at Vingåkersverken and also that this technique could be applied for remediation of contaminated soils. Unfortunately the samples taken during the full scale field test were destroyed by the shipping company and no analysis was possible. A later attempt by the Biorex research group has also been unsuccessful to reduce the amount of TNT using the bioreactor.

Svart - svartare - svartast : En etnologisk studie om döden, identitet och gemenskap inom black metal-kulturen

PURPOSE: To find out how identity creating and community utter within the Black Metal culture, to get an insight of why people are drawn to Black Metal, and what function it fills to the adherents/practicians.METHOD: Analyses of interviews done by the authors. In addition to them literature, mainly in book form, is used for theories.RESULT: We have seen that there are shared Black Metal values, despite a strong individualism within the culture. And death is important for the survival of the culture and the individuals..

Konduktivitet i vattendrag som indikator på sura sulfatjordar

Increasing attention is being given to acid sulphate soils wherever they occur. The problems that leaching sulphate 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 function and precision. This study was therefore carried out to investigate whether conductivity in running water can be used as a simple instrument to identify acid sulphate soils in the catchment. 31 coastal streams in the county of Västerbotten were analyzed for different catchment properties such as occurence of marine sediments and basic water chemistry including conductivity and sulphate.

I det glimrande mörkrets djup : om religiöst gränsöverskridande, identitetssökande och meningsskapande i svensk extrem metal-lyrik

This study is an attempt to investigate religious perceptions and its development, function and connection to religious practise within the Swedish extreme metal scene. This is performed mainly by a qualitative method of investigation, studying lyrical content published on a number of extreme metal albums, thereafter relating the lyrical progression to the progession of the scene as a whole and also to the development of individual religious belief and practise.The lyrically expressed manifestations of religiosity within the extreme metal scene prove to be related to religious practise in some cases, most visibly in the Christian parts of the scene.The study also indicates that development of religious expression often is evident regardless of religious preference. This development also regularly relates to an increase in musical evolution and prowess often achieved with increased age and maturity.Musically and lyrically, the extreme metal scene displays transgressive attributes which assist both individual and group in the process of creating identity, meaning and individuality.Experiencing extreme metal, in concert or in the privacy of one´s own home, can be one way of perceiving spirituality in this modern age..

Recipientundersökning av Ensjön : Bedömning av sulfidmalmgruvan Enåsens eventuella påverkan på sjöns vattenkvalitet

Ensåsengruvan is a mine situated within Ljusdals municipality in central Sweden. Themine was in use from 1984 to 1991 and has since been undergoing a remediation program. Mine tailings from sulfide rich ore is a potential environmental hazard due to its tendency to cause acid waters and heavy metal leakage. Lake Ensjön is situated one kilometer from the mine area. Due to the hydrological conditions it was not expected to receive inflowing water from the mining area.

En tung historia : En undersökning om metalbandet Sabatons historiebruk.

The purpose of this paper has been to examine the heavy metal band Sabatons use of history and to relate it to societal trends in today?s Sweden. I have examined Sabatons music, album covers and music videos in order to define a certain use of history. To do this I have used a use of history theory and a heavy metal theory. My results showed that some of Sabatons use of history could be defined as commercial and that the societal trends in today`s Sweden have in some cases affected the selection and presentation of events and characters that`s been portrayed by Sabaton.

Miljöteknisk undersökning enligt MIFO : en studie på fastigheten Bodsjölandet 1:14 avseende den nedlagda tjärfabriken i Grötingen

During 40 years of industrial production, from the end of the 1890?s until the end of 1930?s, coal and wood distillation products were manufactured in AB Carbo?s tar factory along the River Gimån in Grötingen, in the county of Jämtland, Sweden. In accordance with the Swedish Environmental Protection Agency?s Methods for Inventories of contaminated sites, MIFO, the site in Grötingen has been identified as a potentially contaminated site. In order to determine whether toxic substances pose a threat to human health and ecological systems in the area, there was a need to investigate the presence of contaminants, their levels and potential for migration.

Sons of Northern Darkness : En fråga om stil och identitet i Black Metal-kulturen

Min uppsats har visat på black metal-stilens betydelse för fyra ungdomars identitetsskapande. Jag har med koppling till teoretiska infallsvinkar och begrepp rörande stilars och kulturers betydelse diskuterat black metal-kulturen med fokus på dess stilmässiga uttryck, dess symbolanvändande och dess innebörd för ungdomarnas självbild.I min studie har jag diskuterat och redogjort för hur black metal-kulturen kan te sig genom att förklara hur musiken låter och hur stilens uttryck i form av kläder och frisyrer kan se ut. Uppsatsen har visat på hur symboler och kodsystem används av ungdomarna inom ramen för kulturen för att markera och positionera sin identitet. Jag har i min studie även visat hur black metal-stilen kan vara ett existentiellt ställningstagande mot kommersialism och mainstreamkultur..

Metallhantverket i Uppåkra ? en studie av ett hantverksrelaterat material

The aim for this essay is to identify and distinguish the metal casting of Uppåkra during late Iron Age by examine related material that primarily consist of finds made with a metal detector. I intend to, by analysing maps, concentrations in the detector material and probable constructions within the settlement, find patterns that can indicate a metal casting activity. The results of the essay show that a number of concentrations can be seen and that they both indicate metalworking activities and to some degree a structural specialization in the settlement. The exclusive artefacts also indicate that Uppåkra was a settlement with over-regional functions when it comes to traditions dealing with metal casting..

Geokemisk undersökning vid Rävlidmyrgruvan, Västerbottens län : provtagning, analys och förslag till åtgärder

The mining industry, in terms of ore excavation and metal production, is and has been important to the Swedish economy. In connection with the ore excavation process, large amounts of partly sulphidic waste are produced. When the metal sulphides are exposed to air and water they are eventually oxidised, which leads to the formation of acidic water with high concentrations of metal cations and sulphate ions, so called Acid Mine Drainage (AMD). This water may reach the nearest surroundings and cause negative environmental effects. By covering the waste with soil or water, the oxidation process can be minimised. At the Rävlidmyran mine in the county of Västerbotten open pit mining took place between 1951 and 1991.

Semiotisk analys av Death och Black Metal musikvideos

Bildsemiotik, semiotik, Metal, musikvideo, referenstolkning, subkultur, hårdrock.

Föroreningstransport i grundvatten : En modelljämförelse

This thesis compares different methods for risk assessment of a creosote contaminated site in Vansbro, Dalarna. In a complementary study the importance of using representative data for calibration and validation of stationary groundwater models is discussed. The time dependency between surface water levels and groundwater levels on the site in Vansbro is evaluated by step response analysis. The results show that the groundwater levels reflect only long-term variation in the surface water levels. Hence the use of such long-term means for calibration and validation of the stationary groundwater models is the only theoretically defendable alternative.As a first step in the comparison of risk assessment methods the degree of contamination is evaluated on the basis of generic guideline values for contaminated soils, developed by the Swedish Environmental Protection Agency.

1 Nästa sida ->