Behavior of dissolved Al, Cu, Be, and Cr during simulated dilution of iron-rich coal leachates with alkaline surface waters. Final report
Coal leachates are highly enriched in toxic metals, there is a need to know how the metals behave during dispersion of leachates into natural fresh or estuarine surface waters. In the present work, the authors address the need with two types of experiments. In one type, a synthetic leachate is mixed with NaHCO3 solutions in various proportions. In a modification of this type of experiment, naturally occurring organic extracts are added. In the second type of experiment, the same synthetic leachate is mixed with a natural river water sample and a natural estuarine water sample. The principal goal of these experiments is to determine how efficient ferric hydroxide precipitation is in removing the trace metals during dilution of the leachate. Although the study was designed to investigate the possibility of pollution problems associated with coal storage at power plants, the results should also be applicable to problems associated with acid mine drainage. At the present time, Maryland power plants collect and treat their coal pile runoff.
- Research Organization:
- Maryland Univ., College Park, MD (USA). Dept. of Chemistry and Biochemistry
- OSTI ID:
- 6677585
- Report Number(s):
- PB-90-240615/XAB
- Country of Publication:
- United States
- Language:
- English
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20 FOSSIL-FUELED POWER PLANTS
ALUMINIUM
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CHROMIUM
COPPER
LEACHATES
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ACID MINE DRAINAGE
COAL
DILUTION
ESTUARIES
FOSSIL-FUEL POWER PLANTS
IRON HYDROXIDES
MARYLAND
MIXING
PROGRESS REPORT
REMOVAL
RUNOFF
SODIUM CARBONATES
STOCKPILES
STORAGE
SURFACE WATERS
TRACE AMOUNTS
ALKALI METAL COMPOUNDS
ALKALINE EARTH METALS
CARBON COMPOUNDS
CARBONACEOUS MATERIALS
CARBONATES
DISPERSIONS
DOCUMENT TYPES
ELEMENTS
ENERGY SOURCES
FEDERAL REGION III
FOSSIL FUELS
FUELS
HYDROGEN COMPOUNDS
HYDROXIDES
IRON COMPOUNDS
MASS TRANSFER
MATERIALS
METALS
MIXTURES
NORTH AMERICA
OXYGEN COMPOUNDS
POWER PLANTS
SEPARATION PROCESSES
SODIUM COMPOUNDS
SOLUTIONS
THERMAL POWER PLANTS
TRANSITION ELEMENT COMPOUNDS
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USA
010900* - Coal
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200202 - Fossil-Fueled Power Plants- Waste Management- Noxious Gas & Particulate Emissions