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Electroforced sedimentation of thick clay suspensions in consolidation region
Author(s) -
Shirato Mompei,
Aragaki Tsutomu,
Manabe Akira,
Takeuchi Nobuhiko
Publication year - 1979
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690250514
Subject(s) - settling , consolidation (business) , slurry , geotechnical engineering , electric field , geology , sedimentation , mineralogy , soil science , mechanics , materials science , environmental science , sediment , environmental engineering , geomorphology , physics , accounting , quantum mechanics , business
Abstract It is shown that the slow settling rates of thickened Gairome clay slurries, when initial concentrations are sufficiently concentrated for settling due to the so‐called consolidation mechanism from the beginning of settling, can be greatly enhanced by application of D.C. voltages. Equations for settling due to the consolidation mechanism are developed in view of the influence of the gravitational and the applied electric field. It is demonstrated that the settling rates increase remarkably with increasing electric field intensity. The settling rates and the porosity distributions in settling sediments calculated by the new equations compare favorably with experimental observations.