Control technology research and environmental methodologies for the mitigation of underground-coal-gasification impacts: Task 2 final report - control-technology valuation for UGG-affected subsurface waters. Topical report, August 1985-September 1986

Technical Report · Mon Sep 01 04:00:00 EDT 1986

OSTI ID:7053297

Nolan, B T; Kocornik, D J; Boelter, A M; Bergman, H L

A UCG-affected subsurface water sample was synthesized with altered groundwater and process condensate from the Hanna, Wyoming, UCG site. The concentration of dissolved organic carbon in the water sample closely resembles worst-case contamination of groundwater by soluble organics resulting from UCG. Hot-gas stripping, activated carbon adsorption, coagulation-precipitation, and reverse osmosis were evaluated in a bench-scale treatability study for ability to remove organic and inorganic contaminants from the UCG-affected water. The objective of all treatments was to reduce contaminant concentrations to preburn levels. Ammonia, phenols, calcium hardness, total dissolved solids, sulfate, and selected metals were effectively removed by the process train. The toxicity of the UCG-affected water was reduced substantially by the combination of treatments. Hot-gas stripped, carbon-adsorbed effluent was not lethal to aquatic test organisms at the 100% wastewater concentration.

• Research Organization: Western Research Inst., Laramie, WY (USA)
• OSTI ID: 7053297
• Report Number(s): PB-87-147468/XAB
• 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
COAL GASIFICATION
EQUIPMENT
GASIFICATION
GROUND WATER
HYDROGEN COMPOUNDS
INSPECTION
LIQUID WASTES
OXYGEN COMPOUNDS
POLLUTION ABATEMENT
POLLUTION CONTROL EQUIPMENT
THERMOCHEMICAL PROCESSES
TOXICITY
WASTE WATER
WASTES
WATER
WATER POLLUTION ABATEMENT
WATER TREATMENT