Search for dissertations about: "Flotation"

Showing result 6 - 10 of 106 swedish dissertations containing the word Flotation.

  2. 6. REMOVAL OF LIPOPHILIC EXTRACTIVES AND MANGANESE IONS FROM SPRUCE TMP WATER BY FLOTATION

    Author : Dariusz Zasadowski; Magnus Norgren; Anna Sundberg; Mittuniversitetet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Flotation; Foaming agents; Chelating surfactant; TMP process water; Pitch control; Internal cleaning stage;

    Abstract : Dissolved and Colloidal substances (DisCo) and metals are released from wood during thermomechanical pulp (TMP) production. The mechanical treatment causes that these components have a tendency to accumulate in process waters, as the water circulation systems in integrated paper mills are being closed. READ MORE

  4. 7. The experience of flotation-REST (Restricted Environmental Stimulation Technique: Consciousness, Creativity, Subjective Stress and Pain

    Author : Anette Kjellgren; Karlstads universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Key words: Altered states of consciousness; ASC; Floating; Flotation; REST; Pain; Creativity; Stress; setting.; Psykologi; Psychology;

    Abstract : Abstract. The purpose of the presented investigations was to study the influence and effects of altered states of consciousness (ASC) induced through the flotation tank restricted environmental stimulation technique (flotation-REST) in a laboratory setting. READ MORE

  5. 8. Selectivity in Calcium mineral flotation - An analysis of novel an existing approaches

    Author : Tommy Karlkvist; Bertil Pålsson; Hanumantha Rao Kota; Saija Luukkanen; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Froth flotation; Mineral processing; Adsorption; Mineral specific reagents; surfactant; Mineral Processing; Mineralteknik;

    Abstract : .... READ MORE

  6. 9. Flotation of silicate minerals : physico-chemical studies in the presence of alkylamines and mixed (cationic/anionic/non-ionic) collectors

    Author : Vidyadhar Ari; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mineralteknik; Mineral Processing;

    Abstract : The mechanism of adsorption of long chain alkyl primary amines and, co-adsorption of amines and alcohols on silicate minerals (quartz and feldspar) were studied using FTIR (DRIFT and IRRAS) and XPS spectroscopy methods. The spectroscopy data were correlated with zeta-potential and Hallimond flotation results. READ MORE

  7. 10. Numerical Modelling of Dissolved Air Flotation

    Author : Mia Bondelind; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Computational Fluid Dynamics CFD ; 2D; multiphase flow; one-phase; 3D; turbulence; Dissolved Air Flotation DAF ;

    Abstract : Dissolved Air Flotation (DAF), a well-established treatment method for water containing e.g. dissolved organic matter and Cryptosporidium, has previously been examined experimentally. However, most measuring techniques still suffer from disturbances from air bubbles and intrusion of the measuring equipment into the flow. READ MORE