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Upgrading Biological Filter Effluents Using the TF/SC Process
Author(s) -
PARKER D. S.,
BRISCHKE K. V.,
MATASCI R. N.
Publication year - 1993
Publication title -
water and environment journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 37
eISSN - 1747-6593
pISSN - 1747-6585
DOI - 10.1111/j.1747-6593.1993.tb00815.x
Subject(s) - clarifier , trickling filter , effluent , suspended solids , sedimentation , flocculation , filter (signal processing) , environmental science , aeration , waste management , environmental engineering , pulp and paper industry , engineering , wastewater , biology , sediment , paleontology , electrical engineering
The trickling filter/solids contact process has been shown to be an excellent means of upgrading biological filter plants in North America, and about 100 plants have been built since 1979 in both cold and warm climates, and on both large and small works. A variety of effluent requirements has been satisfied consistently, including monthly average BOD and SS concentrations of 10 mg/l and 10 mg/l respectively. Key design features are described, including the use of an aerated solids contact tank to flocculate dispersed solids. Also, a flocculator‐clarifier with special design features allows the use of high overflow rates and smaller sedimentation tanks.