Uppsatser om organic

355 uppsatser · sida 13 av 24

Ekologisk slaktgrisproduktion i Sverige :

Examensarbete · SLU

This literature review describes organic pig production in Sweden, its advantages and disadvantages, but also how its problems can be reduced or solved. Organic pigs have the possibility to a more natural behaviour than conventional pigs. With outdoor pigs comes problems …

Vattensänkningar

en analys av orsaker och effekter

Magisteruppsats · Lunds universitet

… level is lowered the atmosphere gets access to the peat. The dissolving of the organic matter that has been suppressed by the lack of oxygene below water level continues. This means that the ground itself will sink and (i) approaches the ground water level, and (ii) reduces the …

Stadsodling

möjligheter och begränsningar

Kandidatuppsats · SLU

… structure and drainage is a common situation, as well as low soil humidity and organic matter content. There is heavy competition for access to the urban land. Different practices aiming to make surfaces available to urban farmers are applied, for instance roof gardening.

Den bäcknära zonen vid små skogliga vattendrag i Värmland

generell beskrivning, förekomst av traktorspår samt kvicksilverhalter i körpåverkat ytvatten

Examensarbete · SLU

… the stream. Machine tracks that enter the stream can increase the amounts of organic and inorganic material transported to the stream. The aim of this thesis was to collect the general characteristics of the riparian zones along small forest streams of first order in Värmland …

Miljösystemanalys av alternativa avloppssystem i ett urbant område ”Svartvattensystem

Skogaberg ” Ett pilotprojekt i Göteborg

Kandidatuppsats · Linköpings universitet

… care of and utilised. The aim is to get a market and use the nutrients of the organic waste from the household in agriculture use. The Swedish Environmental Protection Agency (EPA) pays attention to water- and sewage systems from a recycle perspective and the aim of a …

LCA av dricksvattendesinfektion

en jämförelse av klor och UV-ljus

Examensarbete · SLU

… is the production of unwanted by-products when the free chlorine reacts with organic matter. These by-products, e.g. trihalomethans, THM, have shown to bee carcinogenic. This was one of the reasons that contributed to the changeover to disinfection with UV-light, at one of the …

Bioorganisk fastfas syntes för att skapa intelligenta ytor

Examensarbete, grundnivå · Linköpings universitet

This thesis investigates three different surface modifications, and the route to design and synthesize them. The thesis is therefore divided into three sub- projects. (i.) Design and synthesis of a peptide which secondary structure could be controlled by a negatively charged …

Anaerob psykrofil behandling av hushållsavloppsvatten i UASB

Utvärdering av kapaciteten hos en två-stegs UASB-reaktor för behandling av hushållsavloppsvatten

Examensarbete, avancerad nivå · Uppsala universitet

… 2005. Anaerobic treatment without heating, as a way to reduce the content of organic material in the waste water, consumes less energy than conventional methods. Anaerobic reactors are usually operated at 37°C. It is possible to attain a high COD-reduction at lower temperatures …

Miljöpåverkansbedömning vid tillverkning av etanol från cellulosabaserade råvaror

ekologisk gård självförsörjande med drivmedel

Examensarbete · SLU

… All the regulas crops and the crops for ethanolproduction in the system are organically cultivated. The goal for this study is to compare the final environmental load for the whole system of ethanol production, cultivation and usage of the ethanol in the end. This is assessed by …