Effect of underground coal gasification on groundwater. Summary report

Technical Report · Sun Jul 01 04:00:00 EDT 1984

OSTI ID:6437614

Walters, E A; Niemczyk, T M

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.

• Research Organization: New Mexico Univ., Albuquerque (USA). Dept. of Chemistry
• OSTI ID: 6437614
• Report Number(s): PB-84-220318
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404 -- Coal
Lignite
& Peat-- Gasification
010900* -- Coal
Lignite
& Peat-- Environmental Aspects
ADSORPTION
ALKALINE EARTH METALS
ALUMINIUM
ARSENATES
ARSENIC COMPOUNDS
ASHES
BERYLLIUM
CADMIUM
CARBONACEOUS MATERIALS
CATIONS
CHARGED PARTICLES
CHEMICAL ANALYSIS
CHROMIUM
COAL
COAL GASIFICATION
COBALT
COPPER
DISSOLUTION
ELEMENTS
ENERGY SOURCES
ENVIRONMENTAL EFFECTS
EQUIPMENT
FLUORIDES
FLUORINE COMPOUNDS
FOSSIL FUELS
FUELS
GASIFICATION
GROUND WATER
HALIDES
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
IN-SITU GASIFICATION
IN-SITU PROCESSING
IONS
IRON
LABORATORY EQUIPMENT
LEACHING
LEAD
MANGANESE
MATERIALS
MERCURY
METALS
MOLYBDATES
MOLYBDENUM COMPOUNDS
NICKEL
OXYGEN COMPOUNDS
POLLUTION
PROCESSING
REFRACTORY METAL COMPOUNDS
RESIDUES
SAMPLING
SELENATES
SELENIUM COMPOUNDS
SEPARATION PROCESSES
SORPTION
SORPTIVE PROPERTIES
SURFACE PROPERTIES
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
WATER
WATER POLLUTION
ZINC