Record Display for the EPA National Library Catalog


Main Title Evaluation of an Electrodialytic Process for Purification of Hexavalent Chromium Solutions.
Author Folsom, D. W. ; Jones, J. A. ; Olfenbuttel, R. F. ;
CORP Author Battelle, Columbus, OH.;Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab.
Publisher Apr 94
Year Published 1994
Report Number EPA-68-CO-0003; EPA/600/R-94/071;
Stock Number PB94-165214
Additional Subjects Electrodialysis ; Chromic acid ; Purification ; Metal finishing ; Electroplating ; Printed circuits ; Circuit boards ; Chemical etching ; Chromium ; Metals ; Ions ; Hazardous materials ; Waste treatment ; Reclamation ; Recycling ; Pollution abatement ; Cost engineering ; Quality control ; Electronics industry ; Waste minimization ; Source reduction ; Pollution prevention ; St Paul(Minnesota) ; Camden(New Jersey)
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
NTIS  PB94-165214 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 36p
The evaluation addresses the waste reduction and economics of an electrodialytic process that can be used to selectively remove impurities that build up in chromic acid solutions with use. The removal of impurities extends the useful life of the chromic acid solution and reduces periodic replacement of the solution. The electrodialytic units tested in this evaluation were manufactured by Ionsep(TM). The units were tested at SL Modern Hard Chrome in Camden, New Jersey, for a hard chromium plating solution and at Paramax in St. Paul, Minnesota, for a chromic acid solution etching copper from printed wire boards.