The aim with my work is to get a deeper knowledge about the preschool's views of environmental work. I also want to examine how the preschool teachers along with the children work with the project Green Flag in the preschool. I have used structured interview with two teachers in a preschool that works with Green Flag. Green Flag is an environment certification and is an evidence on that one works daily with a document aimed environmental work along with the children. I have found out that each year they work with different themes within Green Flag.

Aquaponics is a food production system consisting of a consecutive cultivation of plants and aquatic animals, fish or shellfish, in recirculating water. The plants feed on the nutritious effluents from the fish tank and bacteria converts ammonia from the fish tank into nitrate that is absorbed by the plants. The plants receive nutrition and the fish gain purified water. The environmental impact of the production of fish meal and fish oil used in conventional fish feed includes a large consumption of fossil fuels with subsequent carbon dioxide emission. The aquaponic system can be made environmentally sustainable and self-supporting if supplemented with a vermicompost/vermiculture for the production of worm protein as a fish feed. Vegetable waste from the hydroponic part of the system can be reused as worm feed in the compost and the protein rich worms can be harvested, dried and grinded and brought back to the aquaculture as fish feed. As a first step in this direction, I have investigated the effect of recycling of vegetable waste in vermicomposts on the growth and number of earthworms (this was evaluated after harvesting). The hypotheses were that earthworms can be cultivated in the vegetable waste and that by adding manure to the vermicompost it is possible to obtain a nutrient content adequate to support a continuous worm harvest, in other words create a vermiculture. Eisenia fetida and Dendrobaena veneta were grown in 20 L bins containing peat mixed with either poultry or cattle manure. The proportions were 70% peat and 30 % manure. Discarded plant parts from lettuce cultivation was added to the vermicomposts (35 g per week) and water was supplied with 0.8 L per week.

Eutrophication of the Baltic Sea and Swedish lakes remains a major problem despite many years of effort to reduce the emissions of nutrients. One major source is waste water systems, especially private sewage systems. These sewages accounts for a very large share of nutrients per capita in comparison with citizens connected to larger sewage treatment plants. Norrtälje community has the greatest number of private sewage systems in Sweden. Discharges of nutrients, especially phosphorus, to the Baltic Sea from these sewage systems are significant.

The collection of hazardous waste from the household around Swedish municipalities varies. 1% of the households waste is hazardous waste. It has hazardous features that can give bad consequences for the nature and human health if we don?t collect it and treat it. Therefore the law controls it, the municipalities have responsibility for the household waste.

The aim of my thesis is to obtain knowledge of textile wastewater and textile sludge from an environmental perspective, which can be used as a basis for the  ?Sweden Textile Water Initiative? guidelines for a sustainable sludge 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 sludge quality, environmental aspects, possible treatment and recycling methods. I have also tried to find existing type of guidelines in order to make comparisons.

This paper describes the process of building a machine translation lexicon for use in the train and transport domain with the machine translation system MATS. The lexicon will consist of a Swedish part, an English part and links between them and is derived from a Tradostranslation memory which is split into a training(90%) part and a testing(10%) part. The task is carried out mainly by using existing word linking software and recycling previous machine translation lexicons from other domains. In order to do this, a method is developed where focus lies on automation by means of both existing and self developed software, in combination with manual interaction. The domain specific lexicon is then extended with a domain neutral core lexicon and a less domain neutral general lexicon.

I takt med ökande intresse för uttag av grot så ökar också intresset för återföring av aska tillbaka till skogen. I rapporten utreds hur mycket återföringsbar aska som produceras av förbränningsanläggningar. Arbetet begränsas genom att endast förbränningsanläggningar med större kapacitet än 10 GWh träbränsle per år tas med . Dessutom sker en avgränsning geografiskt till att endast ta med anläggningar placerade söder om en tänkt linje mellan Karlstad och Stockholm.Datainsamlingen för förbränningsanläggningarnas askmängder har gjorts både med telefonintervju och enkätundersökning. Totalt har 107 förbränningsanläggningar tillfrågat.

A major issue that has been a subject for quite some time is whether there will be a scarcity of metals in the bedrock in the future and whether or not we might end up with a problem similar to that of the big oil crisis in the mid-seventies. Following the oil crisis many oil companies started up with risk management to control future risks. This work presents how Swedish mining companies work with risk management to handle risks that might come up in the future due to metal scarceness. How Swedish mining companies look at the possible metal scarceness and if they use risk management in their decision-making process is studied. By doing interviews with Swedish owned mining companies it was found that the mining companies did not see the future metal scarcity as a risk, even though 2/3 of the companies acknowledged the scarceness to be a reality.

Natural and environmental issues are everyday parts in preschool but when educators shall consciously work with sustainable development they tend to stop at recycling and what is necessary to be done for achieving the Grön Flagg-certification. I have been observing various preschools and noticed that sustainable development is flawed, often because of the teachers lack of interest, knowledge and in some cases both. Out of this grew an idea of making a project that could help the teachers see how the work with the subject in a fun and educational way can become a part of the preschools everyday routine. I made a tutorial booklet with basic facts and activities relating to sustainable development and the three questions in my report were how much knowledge and interest the teachers initially have, if the tutorial booklet could help the teachers to produce new knowledge and interest for the topic and if it turned out to be easier for them to provide educational activities within the subject. There were three departments that participated in my survey and the methodology of collecting data was an anonymous survey with the teachers' own comments in response.

Den svenska lagstiftningen lägger en stor del av ansvaret och kostnaderna för källsortering på hushållen trots att det inte finns några formella tvång. Den här uppsatsen bygger på en enkätundersökning som utförts på hushåll i Linköping och undersöker varför många hushåll frivilligt källsorterar och bidrar till den kollektiva nyttan miljön. Detta analyseras först utifrån individens ansvarskänsla för miljön, där syftet är att undersöka om detta kan fungera som en förklarande faktor till att individer källsorterar. För att få in ytterligare ett perspektiv på analysen beaktas även individens uppfattning om att han gör nytta när han källsortera, genom ett experiment där respondenterna får ta ställning till hur han förhåller sig till källsortering efter ny kritisk information.Respondenternas uppfattning om att källsortering är miljövänligt verkar ha betydelse för deras motivation till att källsortera. Vidare kan ansvarskänslan och vilken information respondenterna har tillgång till mycket väl vara viktiga faktorer för deras källsortering, även om detta inte med säkerhet går att visa i undersökningen..

A major issue that has been a subject for quite some time is whether there will be a scarcity of metals in the bedrock in the future and whether or not we might end up with a problem similar to that of the big oil crisis in the mid-seventies. Following the oil crisis many oil companies started up with risk management to control future risks. This work presents how Swedish mining companies work with risk management to handle risks that might come up in the future due to metal scarceness. How Swedish mining companies look at the possible metal scarceness and if they use risk management in their decision-making process is studied. By doing interviews with Swedish owned mining companies it was found that the mining companies did not see the future metal scarcity as a risk, even though 2/3 of the companies acknowledged the scarceness to be a reality.

Material- och energiåtervinning är två sätt att ta hand om avfall. Materialåtervinning av papper är generellt det sätt som ger upphov till lägst ackumulerade utsläpp av koldioxid. Kuvert är en pappersprodukt som idag saknar producentansvar och branschen för returpapper anser inte att kuvert skall materialåtervinnas i och med att kuvert innehåller substanser som kan ge upphov till stickies. Ett argument som används mot materialåtervinning av kuvert är att problem orsakade av stickies medför ökade kostnader för företagen som tillverkar papper från returpapper. På den svenska marknaden finns det kuvert som, när de processeras i pappersbruken, inte ger upphov till stickies, nämligen svanenmärkta kuvert.

This report covers the thesis done by mechanical engineering at the engineering program at the University of Halmstad. Student Work Development of packaging in the food industry includes 15 credits and has performed over 20 weeks in spring 2009. The thesis work is a compulsory part of education and aimed at the student must apply the knowledge it has given during training in a project related to reality. Student work has been carried out in cooperation with Hanson & Möhringen AB and the project's main objective was to develop an environmentally friendly packaging to their brand Falk Salt. When salt is one of the world's cheapest commodity was packing all the costs have to be as low as possible.

The world is facing huge challenges to overcome the climate crisis. A contributing actor to the environmental footprints are the textile industry and their production processes, which highlights the importance to act. The purpose of this study is therefore to investigate how a middle size company's purchase- and design department work to contribute to sustainable fashion and sustainable consumption. As well as to examine the challenges and possibilities that the fashion company faces in its sustainability work. The qualitative study has been prepared and is based on 15 interviews with employees in the purchase- and design department.

In a sustainable society the use of renewable energy and recycling of materials is of high importance. Wastewater treatment plants use large amounts of energy in the processing of wastewater. This study seeks to evaluate wastewater as an energy resource and to examine treatment plants potential to become sustainable energy producers. The study is based upon the internal processes of Himmerfja?rdsverket.