||Aluminum Reclamation by Acidic Extraction of Aluminum-Anodizing Sludges.
Saunders, F. M. ;
Shaw, R. C. ;
||Georgia Inst. of Tech., Atlanta. School of Civil Engineering. ;Engineering-Science, Inc., Atlanta, GA.;Environmental Protection Agency, Cincinnati, OH. Water Engineering Research Lab.
Materials recovery ;
Aluminum sulfate ;
Industrial wastes ;
Waste treatment ;
Performance evaluation ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
Extraction of aluminum-anodizing sludges with sulfuric acid was examined to determine the potential for production of commercial-strength solutions of aluminum sulfate, that is liquid alum. The research established kinetic and stoichiometric relationships and evaluates product quality. Detailed material-balance data were collected to monitor the progress and extent of extractions. The production of a commercial-strength liquid alum was feasible. Issues relative to product quality indicate that segregation of certain metal containing wastes may be required for selected aluminum-finishing wastes. (Copyright (c) Journal Water Pollution Control Federation (WCPF) 1988.)