Main Title |
Evaluation of Dewatering of Limestone Wet Scrubbing Process Sludges. |
CORP Author |
West Virginia Univ., Morgantown. Coal Research Bureau. |
Year Published |
1973 |
Report Number |
EPA-EHSD-71-11; R2-73-262; |
Stock Number |
PB-221 155 |
Additional Subjects |
( Fly ash ;
Materials recovery) ;
( Electric power plants ;
Industrial waste treatment) ;
( Dewatering ;
Fly ash) ;
Feasibility ;
Air pollution ;
Limestone ;
Sand filtration ;
Coagulation ;
Flocculating ;
Vacuum filtration ;
Settling ;
Lagoons(Ponds) ;
Pozzolans ;
Aluminum ;
Air pollution ;
Sludge disposal ;
Air pollution control ;
Waste recycling
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB-221 155 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
63p |
Abstract |
The purpose of the study has been to investigate the potential use of wet-collected, limestone or dolomite-modified flyashes resulting from sulfur dioxide control methods. Specific areas under investigation have included dewatering, alumina leaching, and production of structural products by employing potential cementitious properties of the modified flyashes. Several methods of dewatering solid materials were applied on a bench scale to flyash from a coal-fired electric power plant. Porous-bed sand filtration, lagooning and possibly pressure filtration appear to hold the most promise. Aluminum extraction tests using sodium hydroxide, sodium carbonate and combinations of the two yielded less than 50 percent of the aluminum available in the leach liquor while structural materials testing indicated that there is insufficient free lime available in the modified ash to act as a suitable binding agent. (Modified author abstract) |
NTIS Title Notes |
Final rept.. |
PUB Date Free Form |
May 73, |
Category Codes |
13B; 68A; 59B |
NTIS Prices |
PC A04/MF A01 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
326563259 |
Origin |
NTIS |
Type |
CAT |