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This paper describes how, using the techniques of the colloid chemist, the water chemist can greatly broaden his understanding of the series of changes that takes place when a coagulant, with or without a coagulant aid, is added to a water for the removal of color or turbidity. But there is still no logical explanation of the fact that certain polyelectrolytes may be quite effective in one situation and relatively ineffective in another. The paper discusses the properties of colloids, instability and stability factors, the nature of zeta potential, coagulation of colloids, polyelectrolytes, the mechanism of polyelectrolyte action, mechano‐chemical effect, and electron microscope studies. A discussion of this paper by Thomas M. Riddick is included, covering the following topics: zeta potential studies; electrophoresis; treatment of wastes; and, coagulants and coagulant aids.
This paper describes how, using the techniques of the colloid chemist, the water chemist can greatly broaden his understanding of the series of changes that takes place when a coagulant, with or without a coagulant aid, is added to a water for the removal of color or turbidity. But there is still no logical explanation of the fact that certain polyelectrolytes may be quite effective in one situation and relatively ineffective in another. The paper discusses the properties of colloids, instability and stability factors, the nature of zeta potential, coagulation of colloids, polyelectrolytes, the mechanism of polyelectrolyte action, mechano‐chemical effect, and electron microscope studies. A discussion of this paper by Thomas M. Riddick is included, covering the following topics: zeta potential studies; electrophoresis; treatment of wastes; and, coagulants and coagulant aids.
Basic Mechanisms of Coagulation
Black, A. P. (author)
Journal ‐ American Water Works Association ; 52 ; 492-504
1960-04-01
13 pages
Article (Journal)
Electronic Resource
English
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