The impact of the distribution in the soil volume of two farm manures on the net mineralization and immobilization processes of nitrogen were studied in an incubation experiment. Cattle slurry and broiler litter were placed in the soil with three procedures for incorporation including placement on top of the soil (TOP), in the middle of the soil (MID) and mixed homogenously with the soil (MIX). During the two weeks of incubation, few significant differences in net mineralization were seen between TOP, MID and MIX. However, there was a tendency that MIX led to a larger net immobilization of N than placement at one point (TOP and MID). This is also the result in the literature.

The aim of this study was to evaluate the effects on a simulated wastewater plant regarding GHG emissions and use of energy and resources when implementing source separated wastewater systems. The effects were studied for different restrictions of effluent quality and for different temperatures on the influent. The simulation model BSM2G calibrated for Käppala wastewater treatment plant was used. The task was executed by simulating nine different scenarios with an increase in influent load from new connections equivalent to 3, 10 and 30 % of the present connections. These new connections were served by conventional, urine separated or black water separated systems.

This study focuses on a reconstruction proposal of a small part of a rural churchyard that has lost a big part of its history, in form of its conformation and plant material. The chosen part of the cemetery was established in 1938, and this proposal is an interpretation of the architect?s original plan, the workers wishes and my own observations and experiences of the place. In this proposal I have tried to balance the plants composition to create an environment that can benefit the biological diversity, that fits the locations habitat and today?s maintenance.

This thesis has been done in order to ease the process of drawing schematics ofelectrical wiring. The need arose after demand from the government due to a seriesof incidents that took place during the revision of the nuclear power plant in year2009.The task of the project has been to create a computer program that can generate agraphical representation of the electrical components relations. The basis for theprogram has been an example of how the client wants the graphical representation tolook. During the course of the project weekly meetings have occured in which theclient has reviewed the work.The result of the project is a program written in Visual Basic Applications that can berun in Microsoft Excel. The program is capable of generating graphics for a majority ofthe cases.

There are certain organizations that manage to handle risk in such a successful way that they almost stay error-free, in spite of the fact that they daily face the risks of accidents. These organizations are usually given the name High Reliability Organizations (HRO). While the most common example is that of a nuclear plant the variety of what organizations can fit into the category is extensive.The purpose of this study is to describe safety culture and theories about HRO and how these can be found in practise within an organization.This qualitative research uses influences of ethnography in its method. The ethnographical approach was picked due to the field of the study and the cultural context in which it is set.The results of the study identify a number of elements sorted into four themes. These themes are deemed compatible or non-compatible with relevant existing theories.

Volvo Construction Equipment AB Components Division i Eskilstuna är mitt inne i ett omorganisationsarbete där fabriken byggs om från funktionsverkstad till flödesorienterade grupper detta för att effektivt möta den växande orderingången. När gruppernas värdeflöden tydligtgjorts återstår ett intensivt arbete med att optimera ledtider, lagernivåer och produkter i arbete med mera. Ett kraftfullt verktyg för att stötta detta arbete är diskret händelsestyrd (DE) simulering. Det har genomförts flertalet DE simuleringar tidigare på företaget, då främst av konsulter. I den nya fabriken finns en önskan om att utföra detta arbete själv.

Sewer trenches usually contain material with a higher hydraulic conductivity then the adjacent soil. Thus they can serve as paths of preferential flow in a polluted area. Wastewater from factories can also leak from wastewater pipes and pollute the soil in the sewer trenches.The purpose of this project was to investigate pollutions in sewer trenches and in sewer pipes in the industrial area of Köpmanholmen, 20 km south of Örnsköldsvik in the north of Sweden. To make an estimation concerning the potential of transport of pollutions in sewer trenches, hydrological calculations were performed.Leakage to any greater extent did not seem to be a problem in the area. This is the case both for the concrete and the wooden pipes that have served as factory wastewater pipes.

Volvo Personvagnar är ett av de starkaste varumärkena i bilindustrin, med en lång och stolt historia av världsledande innovationer. Fabriken i Skövde tillverkar motorer i både bensin- och dieselvarianter. I framtiden planerar Volvo att införa nya typer av motorer med gruppnamnet VEA, Volvo Environmental Architecture. Dessa nya motorer kommer att vara standard i alla nya Volvobilar, men tillverkning av de gamla modellerna kommer att finnas kvar För att förstå hur de nya transportsystemen i fabriken kommer att fungera tillsammans med de gamla transportsystemen och för att veta om de transportsystemen kan hantera framtidens krav krävs en simuleringsmodell.Under våren 2011 gjordes ett liknande projekt, då en simuleringsmodell av transportsystemen skapades. Men eftersom modellen var för komplicerad och krävde mycket simuleringstid beslutades att en ny modell ska byggas för att kunna hantera optimering.Det finns tre huvudsakliga transportsystem, automatiskt styrda fordon (AGV), elektrisk hängbana (EHB) och manuella transporter med truckar.

In modern society in terms of economics and environmental impact, it is important to ensure that a company is as energy efficient as possible to reduce the amount of energy used. About 10 TWh of electricity used annually to pump drives in Swedish industry. Therefore, pumping system has great potential for energy savings.The objective of this report was to determine how much energy and money that can be saved with the insertion of variable speed drive to six pumps on Bleach plant 4 in Skutskär Mill. The work was performed with electrical measurements during one week, analysis of pump curves and the compilation of production data over a year.The results show that four of these six pumps were profitable and yielded an annual saving of 1172 MWh of electricity and 560 000 SEK. With an economic lifetime of 10 years and a discount rate of 6.8% the final result for the entire life-cycle savings became 3 355 000 SEK.

This thesis calculates and compares the values of improved environmental quality due to future possible investment alternatives in biogas production facilities at Käppalaförbundets Reningsverk (Käppala Sewage Treatment Works) in an attempt to determine which alternative yields the highest such value. Käppala faces three investment alternatives for the usage of biogas. The alternatives are production of vehicle fuel, district heating and thirdly, heat and power production. Estimates of the value of environmental change are calculated for each of the three investment alternatives, and these estimates are then compared. The environmental change in question is the change in discharge levels of carbon dioxide (CO2), nitrogen oxides (NOx), sulphur dioxide (SO2) and particle matter.

My questions at issue for this report has it´s beginning in the growing problems of thenegative effects of burning fossile fuels and the rapidly growing energyprices.1. Is it possible to design a micro scale powerplant?2. Is it economically interesting for a potential customer to by such a product?The aim with this report is therefor, with the help of design work and calculations, to answerthese questions and to create a platform for building a fully functional micro scale powerplant.The material used in the report is mostly product catalogs from various industries but alsostudy course littrature about steam engines.The result of the report is that it is fully possible to design a fully functional micro scalepower plant.

The ambition of this paper is to study the construction of the categorization between ?us? and ?them? in a religious minority, represented by Jehovah?s Witnesses and a nationalist political party, represented by the Swedish Democrats. This will be done by a discursive psychology analysis of their official publications on each group?s website. By a deductive study using Henri Tajfel?s Social Identity Theory trying to disclose the psychological processes; social categorization, social identity, social comparison and psychological distinctiveness.

This thesis has two purposes: (1) to analyze the emptiness in Blodbok by Christine Falkenland, and (2) to analyze my own reading of the same book. I have chosen to focus on how emptiness is expressed through the body, the language and the place in Blodbok, because of the deep impact these seem to have on the emptiness. The thesis discusses what kind of emptiness that is described, what it does to me as a reader, and how it is connected to other works by Falkenland. Cultural politics of emotions by Sara Ahmed, Uses of literature by Rita Felski and Pouvoirs de l?horreur by Julia Kristeva together form the theoretical framework.Blodbok is a poetry collection, about the loss of a mother.

Bringing back the nutrients from the city to the country is becoming increasingly important, as the world?s stores of nutrients get more exhausted. Sewage sludge is an unapplied resource, rich in plant nutrients, which could replace parts of the commercial fertilizers used in Sweden today. Sewage sludge may contain large amounts of pathogens, such as Campylobacter and Salmonella, why use can cause severe spreading of infections, both to animals and humans. These pathogens have the ability to survive for a long time in soil and water and therefore some sort of treatment of the sludge is recommended before use.

The purpose of this study is to examine the effect the Nazi threat had on the swedish labour movement between 1932 and 1939 and to enrich what kind of pre-understanding they had about the fall of the Weimar Republic and the upcoming and effects of the Third Reich.Brought by the development in Germany, a debate and struggle took place in the Social Democratic journal Tiden over the meaning of concepts and there ability, in the hands of demagogs, to overthrow democratic structures. The concept of socialism and its concepts attribute play a major part in this investigation. By establishing fields of tension such as - nation vs internationalism, socialism in theory and in practice, political democracy vs evolved democracy and the diverse principles of neutrality, the first principle meaning the defending of national boarders, the other meaning not only defending your own country but taking an active part in defending democracy in the world - I was able to observe the movement and change of concepts within this fields. The result showing that the concept of socialism and near related attributes, in the hands of national socialists had undertaken a wast change of meaning, which applied in the Swedish debate threatened to undermine the power and force of the Social Democrats applied in the political discourse in Sweden. To defend itself and strengthening the Social Democratic hegemony as well as maintaining the goal of evolved democratic expansion, they were forced to win the confidence and votes of the middle class.