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THE ELECTRICAL DEWATERING OF CLAY SUSPENSIONS 1
Author(s) -
Curtis Carl E.
Publication year - 1931
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1931.tb16933.x
Subject(s) - dewatering , electrolyte , mineralogy , polymer science , materials science , chemistry , geology , geotechnical engineering , electrode
ABSTRACT The history of the developments by Count Schwerin, application at Carlsbad with detailed description of the plant, and review of the investigations of others on dewatering of clays by electrophoresis, are given at length. The investigations by the author, including a description of the apparatus, materials, voltage, and electrolytes are described with a statement of the results obtained with variations of each factor. The possible efficiency as a clay dewatering means is discussed. Plasticity theories are discussed in the light of the evidence obtained. The power cost is from 65 to 80 cents per ton of clay. On the average, clay dewatering by electrophoresis is no more efficient than the filter‐press, but it has shown greater efficiency on very fine‐grained clays. Bibliographies are appended on (1) colloids in clays, (2) theories applying to electro‐endosmosis, (3) electromosis, and (4) Schwerin's patents. A short biographical sketch of Count Schwerin is also appended.