Preliminary Studies on the Fermentation of the Sulphite Pulp Waste Liquors

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Other Title
  • 亜硫酸パルプ廃液に関する研究
  • Part I Ca-base Sulphite Cooking Waste Liquor
  • I. Ca-baseの廃液を醗酵原料として利用する場合について

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Description

<BR>The chemical compositions of various kinds of sulphite waste liquor were estimated, and experiment was done to find the way to remove the fermentation obstructive materials.<BR>Results were as fellows;<BR>1) There were much fermentation obstructive materials in most of the under-cookedsulphite pulp waste liquors.<BR>2) It was very difficult to remove them.<BR>3) The contents of fermentable sugars were little.<BR>4) The sulphite pulp waste liquor of hard wood contained less fermentable sugars.Percentages of fermentable sugars in sulphite pulp waste liquor were as follows, <BR>cooked for paper pulp 916%<BR>cooked for dissolving pulp 1623%<BR>cooked for excessively 2526%<BR>Part II Na-base Sulphite Cooking Waste Liqu<BR>Some kinds of experiments were done with Na-base sulphite pulp waste liquor, and we found that for removiny the fermentation obstructive materials, acid treatment was more effective than aeration, steam-stripping and CaCO3 addition<BR>Table 2 Variation of SO2 contents with H2SO4 sol.<BR>Table 3 Hydrolysis of S.W.L.<BR>Table 4 Fermentation of S.W.L.<BR>The optimum condition we found was the treating period of one hour, the treating temperature of 90°C with 0.5% H2SO4 solution.

Journal

  • JAPAN TAPPI JOURNAL

    JAPAN TAPPI JOURNAL 16 (5), 444-448, 1962

    JAPAN TECHNICAL ASSOCIATION OF THE PULP AND PAPER INDUSTRY

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Details 詳細情報について

  • CRID
    1390001206514997760
  • NII Article ID
    130003451757
  • DOI
    10.2524/jtappij.16.444
  • COI
    1:CAS:528:DyaF2cXkvVOrt74%3D
  • ISSN
    18811000
    0022815X
    http://id.crossref.org/issn/0022815X
  • Data Source
    • JaLC
    • Crossref
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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