Search for dissertations about: "flocculated"

Showing result 1 - 5 of 17 swedish dissertations containing the word flocculated.

  1. 1. Mechanical modelling of blade forming and drainage of flocculated suspensions

    Author : Claes Holmqvist; Anders Dahlkild; Douglas Bousfield; KTH; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; Applied mechanics; blade forming; pressure distribution; interaction; suction; drainage; Teknisk mekanik; Engineering mechanics; Teknisk mekanik;

    Abstract : A method has been developed for flexible modelling of multi-component twin-wire blade formers. Features such as suction devices, loadable blades, curved blades, and partial contact between the blades and the forming fabrics are easily incorporated. READ MORE

  2. 2. Mathematical and Numerical Modeling of 1-D and 2-D Consolidation

    Author : Katarina Gustavsson; KTH; []
    Keywords : twp-phase flow; consolidation; flocculated suspension; Eulerian two-fluid model; shear thinnih; numerical methods;

    Abstract : A mathematical model for a consolidation process of a highlyconcentrated, flocculated suspension is developed.Thesuspension is treated as a mixture of a fluid and solidparticles by an Eulerian two-phase fluid model. READ MORE

  3. 3. AKD sizing : dispersion colloidal stability, spreading and sizing with pre-flocculated dispersion

    Author : Rosa Mattsson; Luleå tekniska universitet; []

    Abstract : Alkylketene dimer, AKD, dispersions are used in the paper industry to obtain paper grades with a hydrophobic character i.e. resistance to sorption of water. AKD is used in neutral to alkaline internal sizing, pH in the interval of 6-9. READ MORE

  4. 4. Theoretical and Experimental Studies of Polymer Adsorption and Polymer Mediated Interactions

    Author : Fei Xie; Teoretisk kemi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Polyelectrolyte; Adsorption; Colloid; Polymer; Dispersion; Interation; Ellipsometry; Monte Carlo Simulation; Classical Density Functional Theory;

    Abstract : Polyelectrolyte adsorption and polymer mediated interactions in different colloidal polymer systems have been studied in this work. Theoretical methods and experimental techniques are combined, in order to obtain more general reliable results, as well as a deep understanding of the molecular mechanisms that are responsible for the observed behaviors. READ MORE

  5. 5. Flocculation of Allochthonous Dissolved Organic Matter – a Significant Pathway of Sedimentation and Carbon Burial in Lakes

    Author : Eddie von Wachenfeldt; Lars Tranvik; David Bastviken; John Downing; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; flocculation; dissolved organic carbon; allochthonous; carbon sequestration; carbon cycle; boreal lakes; Freshwater ecology; Limnisk ekologi;

    Abstract : Inland waters receive substantial amounts of organic carbon from adjacent watersheds. Only about half of the carbon exported from inland waters reaches the oceans, while the remainder is lost en route. This thesis identifies flocculation as an important and significant fate of carbon in the boreal landscape. READ MORE