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Mechanically induced dewatering of ion-exchanged attapulgite flocculated by a high-molecular-weight polymer.

Authors
Stanley-DA; Scheiner-BJ
Source
Colloids Surf 1985 May; 14(2):151-159
NIOSHTIC No.
10004632
Abstract
The Bureau of Mines is investigating a dewatering technique that facilitates disposal of phosphatic clay wastes. The technique involves flocculation by high-molecular-weight polyethylene oxide (peo) and mechanical deformation of the flocs in a trommel to release water. Field tests in central Florida determined that the ion-exchange form of the clay wastes affect their dewaterability. For this reason, the effect of sodium, potassium, calcium, magnesium, and aluminum exchange ions on the dewaterability of attapulgite slurries was investigated for peo of both 5 and 8 million molecular weights. An empirical equation was developed that describes the dewatering of attapulgite with the polymer peo.
CODEN
COSUD3
Publication Date
19850501
Document Type
OP; Journal Article
Fiscal Year
1985
NTIS Accession No.
NTIS Price
Identifying No.
OP 52-85
Issue of Publication
2
ISSN
0166-6622
NIOSH Division
TURC
Source Name
Colloids and Surfaces
State
FL; Al
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