Removal of water impurities by hydrous oxides
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Date
1991-09-19
Journal Title
Journal ISSN
Volume Title
Publisher
Institution of Engineers, Australia, Institution of Chemical Engineers & Royal Australian Chemical Institute
Abstract
In this study, the effects of adsorbed fulvic acid, a naturally occurring organic acid, on the kinetics of hematite aggregation and on the resulting structure of hematite aggregates are investigated. A model based on colloid stability theory which also accounts for the structure of the aggregates formed is used to describe the aggregation kinetics of these adsorbed particles. The study of aggregate structure shows that the fractal dimensions of hematite aggregates which are partially acid molecules are higher than those obtained with no adsorbed fulvic acid The scattering exponents obtained from static light scattering experiments of these aggregates range from 2.83 +- to 3.42 +- 0.1.
Description
Physical copy held at by ANSTO Library at DDC 660.20994/10
Keywords
Water, Impurities, Oxides, Organic acids, Kinetics, Adsorption, Scattering, Hematite
Citation
Amal, R., Raper, J. A., & Waite, T. D. (1991). Removal of water impurities by hydrous oxides. Paper presented to the the Nineteenth Australasian Chemical Engineering Conference, Newcastle, Australia: "CHEMECA 91", Developing Export Technology, 18 - 20 September 1991, (pp.607-614).