Effects of calcium on peroxide bleaching and washing of thermomechanical pulp

V Saarimaa, Anna Sundberg, Bjarne Holmbom, M Svedman

    Research output: Contribution to journalArticleScientificpeer-review

    4 Citations (Scopus)


    Application: Calcium ions are abundant in white waters of paper machines that use calcium carbonate and calcium sulfate as fillers or coating pigments. The calcium-containing white water is typically reused in mechanical pulping. Interactions between calcium and especially highly charged pectic acids can have detrimental effects. This study focuses on the significance of these interactions.
    Original languageUndefined/Unknown
    Pages (from-to)21–26
    Number of pages6
    JournalTappi Journal
    Issue number10
    Publication statusPublished - 2006
    MoE publication typeA1 Journal article-refereed


    • mechanical pulp
    • calcium
    • peroxide bleaching

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