Removal of acetate from NSSC sulphite pulp mill condensates using thermophilic bacteria

Martti Perttula, Marta Konradsdottir, Jaakko Pere, Jakob Kristjansson, Liisa Viikari

    Research output: Contribution to journalArticleScientificpeer-review

    16 Citations (Scopus)

    Abstract

    Treatment of sulphite mill condensates containing acetate and ammonia was studied using aerobic thermophilic bacteria at 65°C. A separate treatment at this relatively high temperature could save energy and decrease water consumption in the process. Experiments were carried out in packed bed bioreactors (vol. 0.1–0.3 dm3) using media based either on condensate or on ammonium acetate. Diatomaceous earth was superior to the other carrier materials tested (red brick, activated carbon, pumice). At 90% acetate removal, the acetate consumption rates were ca 0.7 and 0.5 g dm−3 h−1 on ammonium acetate (acetate 5 g dm−3) and dilute condensate media (acetate 2 g dm−3), respectively. The corresponding dilution rates were 0.15 and 0.38 h−1.

    Original languageEnglish
    Pages (from-to)599 - 604
    Number of pages6
    JournalWater Research
    Volume25
    Issue number5
    DOIs
    Publication statusPublished - 1991
    MoE publication typeA1 Journal article-refereed

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