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OLS : Record

RECORD NUMBER: 10 OF 891

Main Title Activated carbon process for treatment of wastewaters containing hexavalent chromium {microform}
Author Huang, C. P.; Bowers, Alan R.
CORP Author Delaware Univ., Newark.;Industrial Environmental Research Lab.-Cincinnati, OH.
Publisher Industrial Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency ;
Place Published Cincinnati, Ohio :
Year Published 1979
Report Number EPA/600/2-79/130; EPA-R-804656
Stock Number PB-300 765
OCLC Number 54010417
Subjects Water pollution control; Activated carbon; Chromium; Adsorption; Concentration(Composition); Industrial waste treatment; Economic analysis; Physical properties; Chemical properties; Design; Performance evaluation
Subject Added Ent Carbon, Activated; Sewage--Purification--Adsorption; Chromium
Holdings
Library   Call Number Additional Info Location Date Modified
ERBD PB-300 765 NERL/ESD-LV Library/Las Vegas,NV 01/16/2004
NTIS PB-300 765 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 01/01/1988
Collation x, 71 p. : ill. ; 28 cm.
Abstract The removal of hexavalent chromium, Cr(VI), from dilute aqueous solution by an activated carbon process has been investigated. Two removal mechanisms were observed; hexavalent chromium species were removed by adsorption onto the interior carbon surface and/or through reduction to the trivalent state at the external carbon surface. The effects of Cr(VI) concentrations, pH, carbon dosage and extent of mixing in the reaction vessel were studied in the batch mode and in continuous flow packed column experiments in the laboratory. The adsorptive capacity of the carbon and the rates of Cr(VI) adsorption and reduction have been determined. Thermal regeneration of the exhausted carbon was examined, along with caustic or acid stripping solutions and a combined caustic-thermal process. A case study was presented and the experimental data and rate expressions obtained from the data were used to evaluate the design variables (i.e., pH, carbon dose, Cr(VI) concentration and mixing in the reaction vessel). Several Cr(VI) treatment schemes were proposed, together with an economic analysis of each scheme.
Notes Prepared for U.S. Environmental Protection Agency, Office of Research and Development, Industrial Environmental Research Laboratory, under Grant no. R-804656. Includes bibliographical references (p. 64-66). Microfiche.
Author Added Ent
Bowers, Alan R.
Corporate Au Added Ent Industrial Environmental Research Laboratory (Cincinnati, Ohio)
Title Ser Add Ent Research reporting series Environmental protection technology ;
PUB Date Free Form 1979.
Series Title Untraced Environmental protection technology series ; EPA-600/2-79-130
NTIS Prices PC A05/MF A01
BIB Level m
OCLC Time Stamp 20040112121239
Cataloging Source OCLC/T
Language eng
Origin OCLC
Type MERGE
OCLC Rec Leader 01529nam 2200313Ka 45020


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