Details:

Personal Author:
Smelley, Annie G. ; Scheiner, Bernard J.
Smelley, Annie G. ; Scheiner, Bernard J. Less -
Corporate Authors:
United States. Bureau of Mines. ; University of Alabama.
United States. Bureau of Mines. ; University of Alabama. Less -
Description:
"The Bureau of Mines is testing a dewatering technique for phosphatic clay waste that will recover a portion of the water lost using conventional waste disposal methods and produce solids suitable for land reclamation. The technique utilizes a flocculant, polyethylene oxide (peo), that forms strong, stable flocs that can be dewatered on a static screen followed by further dewatering on a rotary screen. In field tests conducted in northern Florida, clay wastes containing a nominal 2.5 pct solids have been consolidated to greater than 20 pct solids. The rate at which peo-treated material continues to dewater in a mine cut also was monitored. Preliminary results indicate that peo-treated material will dewater 30 pct solids in 140 days. Pretreatment of phosphatic clay waste with lime and h2o2 was shown to improve the dewatering technique for problem clay wastes. Research at the Tuscaloosa Research Center is carried out under a memorandum of agreement between the Bureau of Mines, U.S. Department of the Interior, and the University of Alabama." - NIOSHTIC-2

NIOSHTIC no. 10004370


Subject:
[+]
Clay Wastes -- Dewatering.
Phosphate Industry -- Waste Disposal.
Polyethylene Glycols.

Series:
Report of investigations (United States. Bureau of Mines) ; 8928
Document Type:
Report
Place as Subject:
Florida
Collection(s):
National Institute for Occupational Safety and Health
Main Document Checksum:
[+]
urn:sha256:4149c74d7f270b20630c7770ab2eda0038d15451a88d35399cf4a19ca43366ce
File Type:

Supporting Files

• No Additional Files

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