Continuous retention monitoring system as a tool for the optimization of wet end operation

Helena Kortelainen

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    1 Citation (Scopus)


    In this paper a continuous retention monitoring system based on low-consistency sensors is introduced. This measurement system was applied in testing retention agents and optimizing their dosages at a papermill producing several grades of wood-containing and wood-free printing papers. The effects of two different retention aids, varying beating degrees, and different alum concentrations on retention are illustrated, and the relationship between ash retention and first-pass retention of total solids is discussed. The impacts of these two retention agents on paper properties and process variables are also compared.

    Original languageEnglish
    Title of host publicationapermakers Conference
    Subtitle of host publicationProceedings of the Technical Association of the Pulp and Paper Industry
    PublisherTAPPI Press
    Number of pages9
    Publication statusPublished - 1988
    MoE publication typeNot Eligible
    EventPapermakers Conference - Chicago, United States
    Duration: 11 Apr 198812 Apr 1988

    Publication series

    SeriesPapermakers Conference


    ConferencePapermakers Conference
    Country/TerritoryUnited States


    • papermaking
    • ash retention
    • paper and pulp mills
    • continuous retention monitoring system


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