Role of Polyelectrolytes in the Filtration of Colloidal Particles from Water and Wastewater

Abstract

An extensive review has been made of the literature in conection with the use of polyelectrolytes in the removal of colloial particles from water and wastewater by mechanisms of filtration. Pertinent literature on the nature of colloidal materials and current theory related to particle interactions and coagulation as been briefly reviewed. Present thought on the physical aspects and the chemical aspects of filtration has been considered. References related to the characterization and behavior of multi-media filters as well as single media filters were included in this work. Particular attention was directed to the review and evaluation of articles related to specific applications of the use of polyelectrolytes in water treatment, and in domestic and industrial waste-water treatment.