Metallurgical dusts are by-products from steel manufacturing. The high iron content of cast house dust (~64%) makes this by-product an interesting feedstock alternative. Therefore, its return into the internal steelmaking circuit, specifically in sinter plant, is a common practice industry. However, fraction also contains heavy metals, as zinc. As result re-entry zinc process, concentration bla...

This search aims to evaluate the corrosivity of AISI 1020 steel in clayey soil through microbiological analyzes and mass loss technique. Through results obtained, according identification methodology Bergey manual, presence two microorganisms was verified, Acidithiobacillus thiooxidans ferrooxidans , responsible for biocorrosion process addition filamentous fungi. The these bacteria does not ge...

The biosynthesis and control of vitamin B6 in bacteria could be studied more easily if an organism which produced large amounts of this family of compounds could be found. Unfortunately, the measurements of bacterial vitamin B6 that have been reported have often failed to include the total extracellular vitamin B6, and thus they do not adequately reflect the total vitamin B6 in the whole cultur...