The chemical oxidation of lignin found in Sappi Saiccor dissolving pulp mill effluent
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The chemical oxidation of lignin found in Sappi Saiccor dissolving pulp mill effluent
Sappi Saiccor (situated in Durban, South Africa) dissolving pulp mill effluent, produced from an acid bisulphite pulping process, uses acacia and eucalyptus hardwoods to produce a unique and different blend of lignin that has not been previously studied. The chemical oxidation of lignin found in Sappi Saiccor’s effluent has been investigated using a number of different chemical oxidising agents...
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Electro-oxidation reactions using a nickel anode were carried out on the calcium-spent liquor effluent obtained from Sappi Saiccor (formerly South African Industrial Cellulose Corporation) dissolving pulp mill as well as on ligninand lignan-type compounds previously identified in the effluent. Voltammograms were obtained for each solution in order to identify the oxidation potentials of the com...
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The major components from Sappi Saiccor’s two bleaching streams of effluent were isolated and purified using chromatographic methods and characterised using NMR and other spectroscopic techniques. The major constituents extracted by organic solvents were identified as a sterol, fatty acids and lignin precursors and differ from the components identified in the pulping effluent stream.
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ژورنال
عنوان ژورنال: Water SA
سال: 2012
ISSN: 0378-4738
DOI: 10.4314/wsa.v38i1.1