Record Display for the EPA National Library Catalog


Main Title Coupled transport systems for control of heavy metal pollutants /
Author Babcock, W. C. ; Baker, R. W. ; Kelly, D. J. ; Kleiber, J. C. ; Lonsdale, H. K.
Other Authors
Author Title of a Work
Babcock, W. C.
CORP Author Bend Research, Inc., OR.;Industrial Environmental Research Lab.-Cincinnati, OH.
Publisher Industrial Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Available through the National Technical Information Service.
Year Published 1979
Report Number EPA-600/2-79-181
Stock Number PB80-103542
OCLC Number 13606042
Subjects Electroplating--Waste disposal ; Heavy metals ; Membranes (Technology)
Additional Subjects Water pollution control ; Electroplating ; Industrial waste treatment ; Complexing agents ; Membranes ; Separation ; Chromium ; Copper ; Nickel ; Transport properties ; Forecasting ; Economic analysis ; Permeability ; Heavy metals ; Reverse osmosis
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EHAM  QH541.R2 EPA-600/2-79-181 Region 1 Library/Boston,MA 04/29/2016
EJBD  EPA 600-2-79-181 c.1 Headquarters Library/Washington,DC 04/14/2014
EKBD  EPA-600/2-79-181 Research Triangle Park Library/RTP, NC 07/04/2003
ELBD ARCHIVE EPA 600-2-79-181 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
EMBD  EPA/600/2-79/181 NRMRL/GWERD Library/Ada,OK 02/17/1995
ERAD  EPA 600/2-79-181 Region 9 Library/San Francisco,CA 10/01/2012
ESAD  EPA 600-2-79-181 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB80-103542 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation vi, 35 pages : illustrations ; 28 cm.
This report describes a process for separating and concentrating heavy metals from electroplating rinse waters. Metal ions can be 'chemically pumped' across a coupled transport membrane against large concentration gradients by allowing the counterflow of a coupled ion such as hydrogen ion. The process is carried out within a microporous membrane containing within its pores an organic, water immiscible complexing agent. The complexing agent acts as a shuttle, picking up metal ions on one side of the membrane, carrying them across the membrane as a complex, and preserving electrical neutrality by carrying hydrogen ions in the opposite direction. The importance of coupled transport is its high selectivity and flux. High selectivity derives from the rise of specific complexing agents. High flux is possible because these are actually liquid membranes with diffusivities many times greater than those in solid membranes.
Includes bibliographical references. Prepared by Bend Research, Inc., for U.S. Environmental Protection Agency, Office of Research and Development, Industrial Environmental Research Laboratory, under Grant no. Contract Number: R804682-01.