Record Display for the EPA National Library Catalog


Main Title Dewatering of Mine Drainage Sludge, Phase II.
Author Akers, Jr, David J. ; Mos, Edward A. ;
CORP Author West Virginia Univ., Morgantown. Coal Research Bureau.
Year Published 1973
Report Number EPA-14010-FJX; 10724,; R2-73-169
Stock Number PB-221 145
Additional Subjects ( Mine waters ; Sludge drying) ; ( Water pollution ; Mine waters) ; ( Coal mines ; Mine waters) ; Dewatering ; Chemical composition ; Freezing ; Clarification ; Vacuum filtration ; Pressure filtration ; Sand filtration ; Spray drying ; Centrifugal filtration ; Settling ; Cost estimates ; Limestone ; Flocculating ; Filter aids ; Mine acid drainage ; Water pollution control
Library Call Number Additional Info Location Last
NTIS  PB-221 145 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 162p
A study of various acid mine drainage sludge conditioning methods and dewatering systems was made. Acid mine drainage and sludge from neutralization plants were characterized. Four sludges were selected as being representative of the various types of sludges produced by the lime/limestone neutralization of acid mine drainage. The conditioning methods studied were: freezing, use of flocculants, and use of filter aids. The six dewatering systems evaluated were: (1) conventional rotary vacuum filtration, (2) rotary precoat vacuum filtration, (3) pressure filtration, (4) porous bed filtration, (5) thermal spray drying, and (6) centrifugation. On the basis of cost, the most promising acid mine drainage sludge dewatering techniques appear to be centrifugation, rotary vacuum filtration and rotary precoat vacuum filtration. (Modified author abstract)