Details:

Personal Author:
Brown, P. M. (Pat M.) ; Scheiner, Bernard J.
Brown, P. M. (Pat M.) ; Scheiner, Bernard J. Less -
Corporate Authors:
Tuscaloosa Research Center (United States. Bureau of Mines)
Description:
"The Bureau of Mines is investigating a dewatering technique for coal- clay waste that uses a flocculant, polyethylene oxide (peo). This flocculant forms strong stable flocs that can be dewatered on a static screen. A field test unit (ftu) using this technique was operated at approximately 400 gal/min, using a waste stream from the flotation circuit of a coal preparation plant. Consolidated coal- clay material containing 55 to 60 pct solids was produced when the flotation circuit slurries of 2.7 to 8 pct solids were treated with 0.1 to 0.3 Lb peo per ton of solids. The ftu was also operated at 64.5 and 87.5 Gal/min using a portion of the underflow slurry from the preparation plant's thickener. Consolidated coal-clay material containing 55 to 60 pct solids was produced when the thickener underflow slurries of 19 to 24 pct solids were treated with 0.08 To 0.2 Lb peo per ton of solids. Peo-treated materials continued to dewater when placed in a pit." - NIOSHTIC-2

NIOSHTIC no. 10003178


Subject:
[+]
Clay Wastes -- Dewatering.
Coal Preparation Plants -- Waste Disposal.
Coal Slurry -- Dewatering.

Series:
Report of investigations (United States. Bureau of Mines) ; 8824
Document Type:
Report
Collection(s):
National Institute for Occupational Safety and Health
Main Document Checksum:
[+]
urn:sha256:7c7c4b685abd6fd59bbf2605c4a484e051dec7552ca63d4591f0a55195a22c44
File Type:

Supporting Files

• No Additional Files

More +