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The Use of Polymers for Improving Chemical Sludge Dewatering on Sand Beds
Author(s) -
Novak John T.,
Langford Mark
Publication year - 1977
Publication title -
journal ‐ american water works association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.466
H-Index - 74
eISSN - 1551-8833
pISSN - 0003-150X
DOI - 10.1002/j.1551-8833.1977.tb06688.x
Subject(s) - dewatering , drainage , environmental science , waste management , sewage sludge , environmental engineering , geotechnical engineering , pulp and paper industry , sewage treatment , geology , engineering , ecology , biology
Sand beds seldom are used for the drying of chemical sludges because of the tendency of these solids to penetrate into the bed or to drain poorly. Both of these problems can be overcome by polymer conditioning of the sludge prior to bed application. In the study reported, penetration of sludge into the bed, drainage rates, and drying rates were measured. Such data can be used for the prediction of sludge applications to beds and the time required for drying to permit economic comparison of this method for drying of chemical sludges to other disposal methods.