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

Details

• Personal Author:
  Scheiner, Bernard J. ; Stanley, Donald A.
• Description:
  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. [Description provided by NIOSH]
• Subjects:
  Occupational Health Safety
• Series:
  Mining Publications
• ISSN:
  0166-6622
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  Florida ; OSHA Region 4
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  TURC - Tuscaloosa Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  151-159
• Volume:
  14
• Issue:
  2
• NIOSHTIC Number:
  nn:10004632
• Citation:
  Colloids Surf 1985 May; 14(2):151-159
• Federal Fiscal Year:
  1985
• Peer Reviewed:
  True
• Source Full Name:
  Colloids and Surfaces
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:7dc847c09aedf140bc731323e8446b4703641ae07d6ad9e7b7238120dab30b8f7dcaa9b938d34d035f87873a0fe7fec262d5d13dcaf290925445e82b6de3b57d
• Download URL:
  https://stacks.cdc.gov/view/cdc/246578/cdc_246578_DS1.pdf
• File Type:
  [PDF - 168.02 KB ]