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Anwendung von Flockungsmitteln bei der mechanischen Flüssigkeitsabtrennung
Author(s) -
Burkert Hans,
Horacek Heinrich
Publication year - 1986
Publication title -
chemie ingenieur technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.365
H-Index - 36
eISSN - 1522-2640
pISSN - 0009-286X
DOI - 10.1002/cite.330580404
Subject(s) - flocculation , filtration (mathematics) , sedimentation , agglomerate , materials science , chromatography , dispersion (optics) , chemical engineering , chemistry , composite material , sediment , paleontology , statistics , mathematics , physics , optics , engineering , biology
Use of flocculants in the mechanical separation of liquids . The mechanical separation of liquids from turbid water or sewage sludges depends primarily on the size and density of the suspended particles. The process of separation by sedimentation, filtration, or centrifugation becomes increasingly difficult with decreasing size of the suspended particles and decreasing density difference between solid and liquid. The addition of flocculants in ppm amounts destabilizes the dispersion and flocculation sets in. Thus flocculants agglomerate suspended particles, improve the separation, and accelerate the overal separation process. The synthetic organic high polymers used in the treatment of municipal and industrial waste water are characterized by their chemical composition, their molar mass, and their charge density.