منابع مشابه
Behaviour of Residual Lignin in Kraft Pulp During Bleaching
of Gasification of Black Liquor Char by actions of Some Sulfur Compounds, Inorg. Steam, IEC Research 30(7): 1594 (1991). Chem. 22(22):3243 (1983). 26. DEARNALEY, R.I., KERRIDGE, D.H. and 27. ZOU, X., Recovery of Kraft Black Liquor ROGERS, D.J., Molten Lithium Sulfate-SoIncluding Direct Causticization, Ph.D. Metallurgical Trans. B 19B(2):73 (1988). Thesis, McGill Univ. (1991). 28. WYNNYCKYJ, J.R...
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Previous work has shown that Trametes (Coriolus) versicolor bleaches kraft pulp brownstock with the concomitant release of methanol. In this work, the fungus is shown to produce both laccase and manganese peroxidase (MnP) but not lignin peroxidase during pulp bleaching. MnP production was enhanced by the presence of pulp and/or Mn(II) ions. The maximum level of secreted MnP was coincident with ...
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Effluent loads from different traditional and emerging ECF bleaching sequences were investigated. Oxygen delignified Eucalyptus camaldulensis and Acacia mangium kraft pulps having similar kappa number, ca 12.0 were used in this study. Different ECF bleaching sequences were compared with reference sequence, D0EopD1 in terms of effluent load, such as AOX, COD and TOC. Depending on the nature of s...
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Ozone is a non-chlorine bleaching agent that can reduce pollution in the pulp bleaching stage. In this work the ozone bleaching of eucalyptus kraft pulp was performed as part of a kinetics study to explain factors affecting the properties of bleached pulp. The bleaching efficiency was closely related to the rates of mass transfer and self-decomposition, as well as the intensity of ozonation. Fo...
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ژورنال
عنوان ژورنال: JAPAN TAPPI JOURNAL
سال: 1991
ISSN: 0022-815X,1881-1000
DOI: 10.2524/jtappij.45.1208