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Comparison of Algal Penetration Through Rapid‐Gravity Filter Beds
Author(s) -
WATSON ANNE
Publication year - 1989
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.1747-6593.1989.tb01417.x
Subject(s) - anthracite , turbidity , particulates , particulate organic carbon , algae , filter (signal processing) , activated carbon , environmental science , environmental engineering , mineralogy , adsorption , chemistry , environmental chemistry , pulp and paper industry , geology , coal , phytoplankton , oceanography , botany , biology , organic chemistry , nutrient , engineering , electrical engineering
T ests OF FOUR types of filter media are presented, which show that granular activated carbon performs marginally less well than anthracite/sand or anthracite/sand/garnet in the removal of algae, particulate organic carbon, iron and turbidity. The lengths of run which are achieved by the two granular activated carbon filters are also shorter than those of the other two media. A three‐layer filter is better than the anthracite/sand filter for particulate organic carbon, iron and turbidity removal, and the filtrate contains lower mean concentrations of algae.