Record Display for the EPA National Library Catalog


Main Title Effect of Underground Coal Gasification on Groundwater.
Author Walters, E. A. ; Niemczyk, T. M. ;
CORP Author New Mexico Univ., Albuquerque. Dept. of Chemistry.;Industrial Environmental Research Lab.-Cincinnati, OH.
Year Published 1984
Report Number EPA-R-806303; EPA-600/2-84-123;
Stock Number PB84-220318
Additional Subjects Coal gasification ; Ground water ; In situ combustion ; Water pollution ; Trace elements ; Laboratory equipment ; Leaching ; Sorption ; Cations ; San Juan Basin ; Water analysis ; Distribution coefficients ; Adsorption ; Sampling ; Sites ; Water pollution sampling ; Water pollution detection
Library Call Number Additional Info Location Last
NTIS  PB84-220318 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 118p
The potential effect of underground coal gasification on groundwater has been examined in a laboratory study. The study was directed at Fruitland Formation subbituminous coal of the San Juan Basin and at the groundwater found in this coal seam. Two wells were drilled into the coal seam at a potential UCG test site. Groundwater samples and core samples of overburden, underburden and coal were analyzed to establish baseline characteristics. A number of static leaching and sorption studies were performed on the overburden, underburden, and coal. Ash was prepared at several different temperatures and leaching characteristics were examined. Cations of the trace elements Be, Al, Cr, Mn, Fe, Co, Ni, Cu, Zn, Cd, Hg and Pb and the anions F(-1), AsO4(-3), SeO3(-2), and MoO4(-2) were selected for coal sorption studies. Distribution coefficients for sorption on coal were determined for the cations and anions under conditions reasonably similar to those in the groundwater of the San Juan Basin. The effect of humic acid on the sorptive characteristics of coal was studied.