Now showing items 1-5 of 5
NMR studies of lignin models, derivatives and bleaching effluents
NMR problems related to assignment techniques and relaxation restrict the use of NMR in the structural analysis of lignin. These problems have been addressed in three practical studies in this thesis involving a lignin ...
Structure and mobility of lignin in relation to pulp washing and bleaching
The roles of molecular size and structure were investigated in relation to the extent of peroxide bleaching and lignin adsorption on pulp. Structural analysis of components from effluents generated by peroxide bleaching ...
Dispersion and flocculation affinity of anionically charged kraft lignin
Softwood kraft lignin is a biodegradable, renewable, and environmentally friendly natural polymer. Although kraft lignin is widely produced in Canada, it is predominantly underutilized as fuel because it is only soluble ...
Flocculation performance of lignin-acrylamide derivatives
Wastewater produced in different industries contains fine suspended particles that raise a number of environmental concerns due to their potential toxicity and physicochemical properties and make their removal from industrial ...
Copolymerization of pretreated kraft lignin and acrylic acid to produce flocculants for suspension and solution systems
The presence of dyes in the wastewater of textile industry poses a number of environmental concerns due to their toxic nature and the removal of dyes from the wastewater is a major challenge nowadays. Synthetic polymers ...