66 uppsatser · sida 1 av 5
en prooxidant med negativa effekter på mjölkkvaliteten
… in milk can be caused by for example oxidation of the milk fat. Since copper is a prooxidant, a high copper content in the milk can cause oxidation. The aim of this project was to investigate if there are differences between individual cows regarding the proportion of the copper …
… is carrying out a main study of the minefields at Gladhammar. Mining of iron, copper and cobalt under different periods from the 16th century until the end of the 19th century has led to discharges of metals to the lakes situated downstream. The aim of the main study is to …
Abstract At Saltvikens copperindustry, which is located in the municipality of Oskarshamn, copper was refined from sulphiteore some hundred years ago. The ore underwent several steps in the process before the final product was received. These steps all had an influence on the …
… different kind of process water and there are guideline values for how much copper, iron and sodium this water is allowed to contain. Analyzes of this water is in the current situation done with an atomic absorption spectrometric instrument (AAS-instrument) with a flame …
… metals from Österbyverken. For the surface water in Nerån it is mainly cobalt, copper and zinc that contributes with risks, for the sediment in Nerån it is mainly barium, cobalt, copper, chromium and nickel and for the sediments in Filmsjön it is mainly lead, cobalt, copper …
… of particles and metals; arsenic, cadmium, chromium, mercury, lead, copper, nickel and zinc through sweep floc coagulation and hydroxide precipitation. After the laboratory tests the precipitation was tested in the treatment plant with higher pH and coagulant. Also the process …
… The work is characterized by material and shape experiments with silver and copper weave and hand blown glass. From experiments and sketches, the work has resulted in four sculptures, symbolizing four selected stages in a lifecycle; the birth, the development, the maturity and …
Vass, bredkaveldun och gäddnate i Bergviks dagvattendamm
… Bergviks shopping centre all contains arsenic, lead, cadmium, chrome, cobalt, copper, nickel and zinc. The results in this study show a significant difference between these three plants in their heavy metals concentration. Broad-leafed pondweed had significantly higher …
a metal polluted forest soil in Gusum
… sequential extraction and microbialfunctional profiles. The study showed that copper and zinc concentrationswere above Swedish Environmental Protection Agency guidelines for lesssensitive land use on the entire investigated area. Copper showed the highestconcentrations in …
… and cadmium has been reduced since 1989 while the concentrations of zinc, copper, chromium and nickel has increased in the industrial areas I1 and I2. In the residential areas S5 and Bäcklösa the concentrations of mercury, copper and lead has been reduced since 1989 while the …
En studie av kopparvävens egenskaper i kombination med ljus.A study of the copper weave characteristics, in combination with light.
En jämförande studie
… showed that the objects? content of the elements analyzed varies as the copper alloys the objects are made of. Only a few objects are made of the same type of copper alloy. A sword chape included in the material and a bridle mount that was analyzed in 2006 are both made of lead …
Abstract Falu Copper Mine and Sustainable Development Karl-Markus Ansnaes Falu copper mine was Sweden’s oldest mine industry which lasted for almost a thousand years. Throughout the history its area has been vastly contaminated by sulfur oxide. The contaminations has created the …
rensning av stopp samt uppsamling och attityder
… below the permitted ones when using sewage sludge as a pertiliser, except for copper where the amounts were slightly under the permitted level. The enquiry concentrated on the disadvantages with urine separating toilets, to find problems which could be solved. Odour, bad …
påverkande faktorer och metodik för statistisk modellering
… analysis was performed. This analysis examined how the reduction of lead, copper, zinc and cadmium depends on the following factors: the specific pond area, the variance of the residence time distribution, the hydraulic efficiency and the concentration of incoming metals and …
