SAMMANFATTNINGDetta examensarbete är baserat på en uppgift från Small Domestic Appliances (småhushållsprodukter) på Electrolux. Arbetet har handlat om att få in mer naturliga materialmed ?premium? känsla i deras produkter, annat än plast och rostfritt stål.Materialundersökningen har inkluderat: glas, trä, keramik och dekorativa tillämpningarför metall och plast. Hur en användare upplever ett material har också undersökts.Information har samlats in i två undersökningar; en om trender, marknad ochkonkurrenter samt en om material, leverantörer, tillverknings- och ytbehandlingsmetoder.Tre subjektiva test har gjorts på taktilitet för att få reda på hur vissa material upplevs avanvändare. Testerna utfördes med hjälp av materialprover, frågeformulär ochtestpersoner.Ett objektivt test på friktion utfördes också där friktionskoefficienten mellan ett materialsyta och fingertopparna räknades ut.

Organic rearing of broilers is not a large production in Sweden. In order to create a sustainable yet efficient production of organically produced poultry meat, at a price that the consumers are willing to pay, much more knowledge is needed. It is therefore important to do more research on organic broilers under Swedish conditions. This report is aimed to be a base for further studies. In the study 2000 broilers of the hybrid Ross 308 divided in to two equal groups. The broiler hybrids that are used in Sweden are selected for a high growth rate and are normally slaughtered at the age of 5 to 6 weeks, with a slaughter weight of 1.7-2 kg.

SAMMANFATTNINGDetta examensarbete är baserat på en uppgift från Small Domestic Appliances (småhushållsprodukter) på Electrolux. Arbetet har handlat om att få in mer naturliga materialmed ?premium? känsla i deras produkter, annat än plast och rostfritt stål.Materialundersökningen har inkluderat: glas, trä, keramik och dekorativa tillämpningarför metall och plast. Hur en användare upplever ett material har också undersökts.Information har samlats in i två undersökningar; en om trender, marknad ochkonkurrenter samt en om material, leverantörer, tillverknings- och ytbehandlingsmetoder.Tre subjektiva test har gjorts på taktilitet för att få reda på hur vissa material upplevs avanvändare. Testerna utfördes med hjälp av materialprover, frågeformulär ochtestpersoner.Ett objektivt test på friktion utfördes också där friktionskoefficienten mellan ett materialsyta och fingertopparna räknades ut.

Business is changing and so are society?s expectations. Companies are expected to take responsibility for their trade and the context they are operating in, by looking at socially, economically and environmentally aspects. Many companies handle it by implementing corporate social responsibility (CSR) to their line of action. This is often handled by collaborating with other organisations, such as non-governmental organisations.

Agricultural soils constitute the base in human food production and soil content of organic matter and plant nutrients together with soil microbial activity are all important parameters for high crop yield of good quality. These parameters are dependant on proper fertilization.Anaerobic digestion of organic wastes for biogas production generates a liquid residue called biogas residue (BR). It contains organic material and plant nutrients which makes 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 viable procedure for evaluating slurry fertilizers. Two experiments where soil respiration and soil potential denitrification activity (PDA) was measured at fertilizer addition were performed.

Green public procurement (GPP) can be used as an instrument to reduce carbon dioxide emissions, and consideration of environmental aspects within public procurement is becoming more common in Sweden and internationally. Two product groups that have been pointed out as especially important are transports and electricity, where the opportunities for public purchasers to reduce emissions are relatively large. This paper studies GPP which aims at reducing emissions, primarily of carbon dioxide, through environmental requirements within these two product groups. A theoretical analysis of cost-effectiveness, transaction costs and effects on technological development is performed, followed by a closer study of how these aspects appear in practice within GPP. The results indicate that a cost-effective allocation of reductions between the two product groups is most likely to be attained if the main part of emission reduction is achieved through environmental requirements on electricity. The cost for emission reduction within transports is relatively high, especially for heavy transports. For transportation services, more generally focused requirements on emission reductions could probably give greater environmental gains, but the existence of transaction costs steer the environmental requirements towards more technology specific types.

Transformation of inorganic mercury (Hg) to methyl mercury (MeHg) is a biotic process that is proposed to be conducted primarily by sulphate reducing bacteria (SRB). The formation of MeHg is of great interest because it is the mercury species that biomagnifies to the greatest extent in the aquatic food webs; about 90 % of all Hg in fish is MeHg. Our understanding of factors involved in the production of MeHg is very important for making a reliable risk assessment. The purposes of this study were to investigate the different factors that control the solubility of Hg and the production of MeHg in a contaminated lake sediment. The lake Ala-Lombolo, Kiruna municipality, is well-known to be contaminated by mercury from different sources. Sediment cores were sampled at three different locations (N, SW and SE) in the lake and divided in three different layers; 0-5, 5-10 and 10-15 cm.

KRAV-certified organic dairy herds generally have a lower milk yield than conventional dairy herds. A high-level of milk yield requires a feeding regime with high amounts of concentrates, a factor known to contribute to the development of claw lesions (Bergsten, C. 2003). The aim of this study was to compare claw health between organic and conventional dairy herds in free and tie stall systems. The number of herds from different domestic animal health associations was chosen in proportion to the association´s total portion of Swedish dairy producing herds of each type, respectively.

Phosphorus (P) is an essential nutrient but a surplus could lead to eutrophication. Furthermore, the minerals used to produce the mineral phosphate is a non renewable resource. There are in other words several reasons to reduce the leakage of P and the agriculture is one important area to attend. The aim of this work has been to investigate if carbon-rich arable soils content contain more P than arable soils with low carbon content. Moreover it has been calculated if the carbon-rich soils could pose a risk of P leakage by comparing their delivery of P with the plant uptake. The work has consisted of compiling the results from former gathered and analysed soil samples of 130 Swedish arable soils. The fractions of P considered are water soluble P (Pw), ammonium lactate-extractable P (P-AL), hydrochloric acid-soluble P (P-HCl), organic ammonium lactate-extractable P (Porg-AL) and inorganic ammonium lactate-extractable P (Porg-HCl).

Mine waste from Ljusnarsbergsfältet in Kopparberg, Sweden, is considered to constitute a great risk for human health and the surrounding environment. Some of the waste rock consists of sulphide minerals. When sulphide minerals come into contact with dissolved oxygen and precipitation, oxidation may occur resulting in acid mine drainage (AMD) and the release of heavy metals. The purpose of this study has been to characterise the waste material and try to chemically stabilize the waste rock with a mixture of sewage sludge and calcium carbonate. The drawback of using organic matter is the risk that dissolved organic matter can act as a complexing agent for heavy metals and in this way increase their mobility.

SAMMANFATTNINGDetta examensarbete är baserat på en uppgift från Small Domestic Appliances (småhushållsprodukter) på Electrolux. Arbetet har handlat om att få in mer naturliga materialmed ?premium? känsla i deras produkter, annat än plast och rostfritt stål.Materialundersökningen har inkluderat: glas, trä, keramik och dekorativa tillämpningarför metall och plast. Hur en användare upplever ett material har också undersökts.Information har samlats in i två undersökningar; en om trender, marknad ochkonkurrenter samt en om material, leverantörer, tillverknings- och ytbehandlingsmetoder.Tre subjektiva test har gjorts på taktilitet för att få reda på hur vissa material upplevs avanvändare. Testerna utfördes med hjälp av materialprover, frågeformulär ochtestpersoner.Ett objektivt test på friktion utfördes också där friktionskoefficienten mellan ett materialsyta och fingertopparna räknades ut.

Due to global climate change and the rising levels of greenhouse gases (GHG) in the atmosphere, the interest for seeking solutions for mitigation has increased. While much attention has been directed towards technical solutions such as carbon capture and storage (CCS), biogenic carbon sinks has also garnered significant attention. Previous studies have shown that coastal ecosystems such as seagrass meadows and mangroves have a much greater capacity for storing carbon (C) compared to terrestrial ecosystems. That raises the question if other coastal ecosystems, such as coastal wetland forests, that previously haven?t been considered as blue carbon habitats also contribute to coastal carbon sink capacity.

This is a project with the main purpose to create a visual identity and platform for the release of the new started record label Human vs Environment, by finding a form and logotype for the homepage and packaging of the first vinyl ep record by the artist Mr Kaizen. This has also been an exploratory work with the target to get a broader competence in the field of visual communication and increase my understanding of the designs communicative aspects of running a design project with an external partner from concept to finished product..

The amount of various phosphorus (P) fractions in the sediment and the relationship between the amount of P and sediment particle size were investigated in a constructed wetland southwest of Linköping. Furthermore, the possible correlation between clay content in the sediment and distance from the inlet was investigated. Sediment samples were collected along three transects from the inlet to the outlet, with six samples in each transect. In order to measure the soluble P, an NH4Cl extraction was done. This was also analysed for total soluble P after oxidation with peroxodisulphate.

Denna studie syftar till att identifiera vad det är som driver eller hindrar lantbrukare i Östergötland att ställa om sitt lantbruk till ekologisk produktion och huruvida de identifierade påverkningsfaktorerna skiljer sig åt mellan konventionella och ekologiska lantbrukare. Semistrukturerade intervjuer med tre konventionella samt fyra ekologiska lantbrukare genomfördes för att undersöka deras erfarenheter. Respondenternas erfarenheter redovisas i sex identifierade teman; Gårdsspecifika förutsättningar, Ekonomi, Politik, Administration och regelverk, Miljö och hälsa samt Produktionsteknik. En jämförelse mellan de båda grupperna genomförs och det empiriska materialet ställs mot tidigare forskning. Resultatet av studien visar att skillnader mellan ekologiska och konventionella lantbrukares uppfattningar kring hinder och drivkrafter förekommer, men inte inom alla teman.