Record Display for the EPA National Library Catalog


Main Title Secondary Waste Treatment for a Small Diversified Tannery
Author Thackston., E. L. ;
CORP Author Caldwell Lace Leather Co., Auburn, Ky.
Year Published 1973
Report Number FWPCA-WPRD-25-01; EPA-12120-EFM; EPA-R2-72-209;
Stock Number PB-221 494
Additional Subjects Industrial waste treatment ; Tanning materials ; Water pollution ; Tanning materials ; Activated sludge treatment ; Leather ; Design ; Performance evaluation ; Tanneries ; Water pollution control ; Biological industrial waste treatment ; ORM
Library Call Number Additional Info Location Last
NTIS  PB-221 494 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 82
The Caldwell Lace Leather Co. of Auburn, Kentucky, a small tannery using primarily alum tanning but some chrome and vegetable tanning, received a demonstration grant to investigate and demonstrate methods of treating tannery wastes for discharge to a small stream. A research contract with Vanderbilt University produced findings which have previously been reported and are reviewed herein. A modified completely-mixed activated sludge plant was constructed, along with facilities to handle specific problem wastes. After it had been operating for a year, an EPA survey team conducted a study which showed that the plant was performing as predicted by the research phase, except for solids carryover from the secondary clarifier due to mechanical problems. After the problems were corrected, the plant began producing an effluent which more than met expectations, removing 97% of the suspended solids and 95% of the BOD. The report reviews the characteristics of the wastes and discusses the treatment process.