Uppsatser om concentration

564 uppsatser · sida 7 av 38

Phycoremediation of pesticides using microalgae

Masteruppsats · SLU

… the presence of growing algae resulted in around 50% lower propamocarb concentration in the medium compared with final concentration in the control without algae. In the short-term study, the presence of live algae cells led to a 30% reduction of propamocarb, compared to the …

Effekter av kalavverkning på mindre boreala sjöars vattenkvalitet

Kandidatuppsats · Umeå universitet

… during the last 10 years). The results showed that DOC and total nitrogen (TN) concentrations decreased with increasing age of the forests. In clear-cut lakes (5 year) average DOC- (20.5 mg/L) and TN concentrations (477 µg/L) were higher than the average concentration in lakes …

Ackumulation av CO2 och CH4 i istäckta boreala sjöar

Hur förändras ackumulationen i sjöar påverkade av avverkning jämfört med referenssjöar?

Kandidatuppsats · Umeå universitet

… (October-March) during three consecutive years, and to assess whether the concentrations of DIC and CH4, as well as the ratio DIC:CH4 differs between years and between lakes affected by clearcutting and untreated reference lakes. Water- and gas samples were collected from four …

Nischbanker - potentiella dynamikskapare

Kandidatuppsats · Göteborgs universitet · 2015

… part of the economy in Sweden. Despite its importance, the competition and the concentration level within the Swedish banking sector is relatively unexplored. This paper aims to examine the development of the concentration level in the Swedish banking sector during a period of …

Uran i dricksvatten

litteraturstudie om reningsmetoder samt pilotförsök med jonbytesteknik

Examensarbete · SLU

… effects have been observed after consumption of drinking water with a uranium concentration of 200-300 micrograms U/l. By adding a safety margin a range of maximum contamination levels (MCL) have been defined for drinking water in a number of countries. In Sweden the …

Askåterföring i Jämtland

biobränslets och askans innehåll av tungmetaller relaterat till markernas geokemi

Examensarbete · SLU

… materials in the nonsorted samples. The correlation between heavy metal concentrations in soil and needles, as well as the correlation between heavy metal concentrations in soil and branches, were both weak. The reasons for this can be that the heavy metal concentrations in soil …

Kemisk stabilisering av gruvavfall från Ljusnarsbergsfältet med mesakalk och avloppsslam

Chemical stabilization of mine waste with sewage sludge and calcium carbonate residues

C-uppsats · Uppsala universitet

… only analyzed on a few occasions and only for metal content and change in DOC concentration.The results from the laboratory experiments showed that the waste rock from Ljusnarsberg easily leached large amounts of metals. The stabilization of the waste rock succeeded in …

Årstidsdynamik för kvicksilver i ett sövattensediment :

Examensarbete · SLU

… of Sweden. The lake is not directly affected by any industrial pollution and concentrations of Hg in the sediment reflect the atmospheric deposition in this area, as well as processes taking place along the hydrological pathways from soil to lake. Samples from sediment, bottom- …

Glycerol till mjölkkor

effekter på våmmetabolismen

Examensarbete · SLU

… Furthermore the effects of glycerol on rumen fluid volatile fatty acids (VFA) concentration and osmolality were analysed. In the second part four rumen fistulated lactating cows received two different glycerol qualities or as a control no glycerol during three two week periods …