||Water-Treatment-Sludge Filtration Studies.
Judkins, J, J. F. ;
||Auburn Univ., Ala. Water Resources Research Inst.
||WRRI-Bull-15; OWRR-A-024-ALA; 02440,; A-024-ALA(5)
Sludge disposal ;
Water treatment ;
Water softening ;
Lime-soda ash process ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
Research was conducted to examine the filtration characteristics of alum and lime-softening sludges. Hardness effects on filterability were examined. Crystal seeding was found to be effective in improving the filterability of both alum sludge and lime-softening sludge. The size of crystal seed dosage, the mixing rate and the number of sludge recycles appear to be important factors in the drystal seeding process. (Author)