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Particle size reduction by breakage in biological wastewater treatment
Author(s) -
Glasgow Larry A.,
Pollock Ronald J.,
Barkley William A.
Publication year - 1983
Publication title -
biotechnology and bioengineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.136
H-Index - 189
eISSN - 1097-0290
pISSN - 0006-3592
DOI - 10.1002/bit.260250403
Subject(s) - breakup , breakage , aeration , reduction (mathematics) , particle size , controllability , wastewater , mechanics , jet (fluid) , mixing (physics) , particle (ecology) , dissipation , environmental science , materials science , chemistry , environmental engineering , thermodynamics , physics , biology , mathematics , ecology , composite material , geometry , organic chemistry , quantum mechanics
Floc breakup in biological wastewater treatment occurs in response to hydrodynamic stresses imposed by aeration, recirculation, and mixing. This size reduction is of particular concern because it leads to solids carry‐over and adversely affects process controllability. A laboratory study of floc size reduction has shown how the hydrodynamic environment causes breakup and the extent to which it proceeds at particular levels of dissipation. The structure of jet flows was found to be well‐suited for the reduction of floc size.