Record Display for the EPA National Library Catalog

RECORD NUMBER: 2 OF 2

OLS Field Name OLS Field Data
Main Title Static coal storage : chemical effects on the aquatic environment /
Author Coward, Nathan A. ; Horton, Joseph W.
Other Authors
Author Title of a Work
Horton, Joseph W.
CORP Author Wisconsin Univ.-Superior.;Environmental Research Lab.-Duluth, MN.
Publisher U.S. Environmental Protection Agency, Environmental Research Laboratory,
Year Published 1980
Report Number EPA/600/3-80/083A; EPA-R-803937-02-0
Stock Number PB80-221567
Additional Subjects Metals ; Coal ; Aquatic biology ; Water pollution ; Leaching ; Storage ; pH ; Particle size ; Flow rate ; Oxygen ; Nitrogen ; Mine waters ; Acidity ; Ions ; Acetic acid ; Water pollution effects(Animals) ; Water pollution effects(Plants)
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB80-221567 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation 85 pages ; 28 cm
Abstract
The aqueous leaching of heavy metals from soft coal has been examined under a variety of conditions. Variables examined were pH, particle size, rate of flow, time of contact, and oxygen or nitrogen atmosphere. Simple leaching of coal from Western mines with pure water does not remove large amounts of metal. Metal removed was in most cases about 0.1% to 0.5% of the total metal in the coal. Extended, successive leaches (of about one week duration) and leaches in a mildly acid (acetic acid-acetate buffer; pH approximately equals 4.7) tended to remove larger amounts of some metals. Leaching with a strong complexing agent removes relatively larger amounts of metal. When placed in contact with water previously spiked with metal ions, the coal actually reduces the aqueous concentration of many metal ions.
Notes
Caption title. "August 1980." "EPA 600/7-80-083a." Microfiche.