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Principles of Coagulation and Flocculation
Author(s) -
Herman Lyle D.
Publication year - 1983
Publication title -
opflow
Language(s) - English
Resource type - Journals
eISSN - 1551-8701
pISSN - 0149-8029
DOI - 10.1002/j.1551-8701.1983.tb00126.x
Subject(s) - flocculation , coagulation , sedimentation , zeta potential , process (computing) , chemical engineering , mixing (physics) , colloidal particle , colloid , materials science , chemistry , nanotechnology , physics , engineering , nanoparticle , computer science , geology , psychology , paleontology , quantum mechanics , psychiatry , sediment , operating system
This paper discusses the functions and properties of coagulation and flocculation. Coagulation and flocculation are related terms describing the process of preparing colloidal materials for removing by sedimentation. Coagulation is the process used to reduce the energy forces present around particles that tend to keep them from joining together to form a larger mass. Flocculation refers to the process used to bring the coagulated particles together so that they can combine to form larger, settleable, and filterable masses of particles called floc. Zeta potential is defined and its role in coagulation described. The importance of flash mixing and slower agitating processes in flocculation are also emphasized.