Sökning: "deinking"

Hittade 3 avhandlingar innehållade ordet deinking.

  1. 1. Enzymatic degradation of hydrogen peroxide in a recycled paper pulp mill : characterization of hydrogen peroxide degrading enzymes and studies of conventional control strategies

    Författare :Heino Kuusk; Chalmers University of Technology; []
    Nyckelord :paper pulp; catalase; deinking; hydrogen peroxide;

    Sammanfattning : .... LÄS MER

  2. 2. Surface and colloid chemistry of flotation deinking

    Författare :Björn M. Johansson; KTH; []
    Nyckelord :;

    Sammanfattning : This study has been concentrated on explaining the surfacechemical phenomena that occur during the agglomeration andflotation of ink particles. The mechanism of agglomeration ofink particles in a calcium-fatty acid collector system has beenstudied. LÄS MER

  3. 3. Studies of surfactant behaviour and model surfaces relevant to flotation deinking

    Författare :Katarina Theander; Mark Rutland; Krister Holmberg; KTH; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Surface and colloid chemistry; Yt- och kolloidkemi;

    Sammanfattning : The objective of this work was to investigate the behaviour of some model surfactants used in the deinking process, namely, sodium oleate and two ethoxylated nonionic surfactants (C12E6 and C14E6) as well as to investigate the suitability of various model substrates for mimicking interactions in technical systems. The influence of the adsorption to the air � water interface has been measured by means of equilibrium and dynamic surface tension measurements, as well as foaming experiments. LÄS MER