Essays about: "metals and non metals"

Showing result 31 - 35 of 60 essays containing the words metals and non metals.

  1. 31. Modeling and Control of Lime Addition in a Flotation Process

    University essay from Linköpings universitet/Reglerteknik

    Author : Rasmus Tammia; [2017]
    Keywords : Automatic Control; Mineral Processing; Flotation Process; pH Control; System Identification; Modeling; Signal Processing;

    Abstract : Flotation is an important and versatile mineral processing technique that is used to separate hydrophobic materials from hydrophilic. This technique makes it possible to mine complex ores that otherwise would have been regarded as uneconomic and non-beneficial. In this case flotation is used to separate copper from the unwanted gangue. READ MORE

  3. 32. Contaminated sites: a comparison between the Italian and the Swedish approach

    University essay from KTH/Mark- och vattenteknik

    Author : Matteo Tabiadon; [2017]
    Keywords : ;

    Abstract : The assessment of the risk posed by a polluted site towards humans and the environment is an important issue. The methodology to define a conceptual model of the site of study and to perform the risk assessment can differ significantly for each country thus, the comparison between different methods to approach polluted sites, can highlight which are the aspects that should be included or modified in the risk assessment methodology to ensure reliable outcomes. READ MORE

  4. 33. Metal Fractionation in Snowmelt Runoff : A Comparison between Ultrafiltration and Diffusive Gradients in Thin Films (DGT) techniques

    University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Author : Sarah Lindfors; [2017]
    Keywords : Urban Runoff; Metals; Ultrafiltration; Diffusive Gradients in Thin Films;

    Abstract : Urban runoff is a non-point pollution source deteriorating water quality of natural watersystems. The composition of urban runoff vary depending on land use, seasonal changes anddifferent surfaces that come into contact with the water. READ MORE

  5. 34. Critical Assessment of the Mineralogical Collections at Uppsala University using Raman Spectroscopy

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Yuliya Zhuk; [2017]
    Keywords : Raman spectroscopy; gemmology; geology; mineralogy; Mineralogical Collectio; Ramanspektroskopi; gemologi; geologi; mineralogi; mineralogisk samling;

    Abstract : The technique of Raman spectroscopy was applied in order to identify and characterize the number of minerals in the mineralogical collection at the Department of Earth Sciences. The collection was broadened with five rare carbonates borrowed from the collection of the Swedish Museum of Natural History in Stockholm. READ MORE

  6. 35. Radial migration of stars, measured in N-body simulations

    University essay from Lunds universitet/Astronomi - Genomgår omorganisation; Lunds universitet/Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation

    Author : Daniel Mikkola; [2017]
    Keywords : N-body; simulations; galaxies; radial migration; stars; Physics and Astronomy;

    Abstract : The purpose of Galactic archaeology is determining the history of the Milky Way (MW) Galaxy. To do this one uses observational data from stellar populations in terms of properties such as kinematics, chemistry, ages, and evolution. READ MORE