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Characterisation of pulp and paper mill sludge for beneficiation

Author: Jele, TB ; Sithole, Bishop B ; Lekha, Prabashni ; Andrew, Jerome E Date: May 2022 In this study, three different pulp and paper mill sludge (PPMS) samples collected from different South African mills were chemically and physically characterised to investigate their suitability for various beneficiation pathways. The overall ... Read more
Hexenuronic acid in South African Eucalyptus hybrid clones: optimization of the acid hydrolysis (A) stage

Author: Andrew, JE ; Grzeskowiak, V ; Kerr, I Date: Oct 2009 Hexenuronic acid (HexA) is formed during kraft pulping by the conversion of 4-O-methyl-glucuronic acid groups in strong alkali conditions. HexA can be removed from the pulp by including an acid hydrolysis (A) stage in the bleaching sequence. ... Read more
Identification of lipolytic enzymes isolated from bacteria indigenous to Eucalyptus wood species for application in the pulping industry

Author: Ramnath, L ; Sithole, Bishop B ; Govinden, R Date: Sep 2017 This study highlights the importance of determining substrate specificity at variable experimental conditions. Lipases and esterases were isolated from microorganisms cultivated from Eucalyptus wood species and then concentrated (cellulases ... Read more
Indigenous trees in South Africa: is the market for wood and water growing?

Author: Gush, Mark B ; James, B Date: Jan 2011 South Africa is very reliant on its plantations of introduced tree species to meet its pulp and timber needs, and the benefits of this industry in terms of production, income generation and job provision are undisputed. The downside is that ... Read more
A new method for the analysis of soluble and insoluble oxalate in pulp and paper matrices

Author: Sithole, Bishop B ; Azeez, AM ; Ramjugernath, D Date: Nov 2013 A novel method has been developed for determining soluble and insoluble forms of oxalate in pulp and paper samples by ion chromatography. Methanesulphonic acid is used to dissolve insoluble oxalate, and total oxalate is then determined by ion ... Read more
Precipitation and valorisation of lignin in South African kraft mill black liquor - first stages: Poster

Author: Namane, M ; Sithole, Bishop B ; Ramjugernath, D Date: Oct 2013 Worldwide, the pulp and paper industry is in decline due to a number of factors such as high production costs, the growing utilization of electronic media that compete with print media and books, as well as pressure for the industry to be ... Read more
Stickies monitoring at a newsprint and packaging mill

Author: Andrew, J ; Hanuman, A ; Sithole, Bishop B Date: 2011 The objective of this study was to demonstrate the applicability of the new methods by undertaking stickies audits in a newsprint and a packaging mill to test the sensitivity of the methods to detect changes in the concentration of stickies ... Read more

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Browsing by Subject "Pulp"

Browsing by Subject "Pulp"

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