Treatment of contaminated groundwaters with granular activated carbon and air stripping
Over the past several years there have been increasing reports of cases of contaminated groundwater. Many cases were caused by leaking from surface impoundments or landfills, or leakage from underground storage tanks. Treatment of groundwater use, discharge or recharge into the aquifer is becoming a major concern. Two widely used treatment techniques are adsorption with granular activated carbon and packed tower air stripping. Granular activated carbon is often applied when organic contaminants need to be removed to nondetectable levels, and should be a part of the process if nonvolatile contaminants are present. Air stripping is capable of 95-99% reduction of volatile contaminants and can be a cost effective treatment technology if nondetectable contaminant levels are not required and air pollution is not a factor. Should off-gas from an air stripper require treatment for removal of organic contaminants, granular activated carbon adsorption can be effectively applied as it was in the water phase. Selection of a groundwater treatment technology depends on factors such as contaminant type, end use of the water and air pollution concern, and each case requires consideration of these factors to arrive at the most cost effective solution.
- Research Organization:
- Calgon Carbon Corp., Pittsburgh, PA
- OSTI ID:
- 6286903
- Journal Information:
- J. Air Pollut. Control Assoc.; (United States), Vol. 35:12
- Country of Publication:
- United States
- Language:
- English
Similar Records
Performance of air stripping and GAC (granular activated carbon) for SOC (synthetic organic chemical) and VOC (volatile organic chemical) removal from ground water. Final report, October 1983-November 1987
Expert system for technology screening for SOC and VOC contaminated water
Related Subjects
GROUND WATER
WATER POLLUTION CONTROL
WATER TREATMENT
ACTIVATED CARBON
ADSORPTION
AIR POLLUTION
COMPARATIVE EVALUATIONS
CONTAMINATION
OPTIMIZATION
ORGANIC COMPOUNDS
ADSORBENTS
CARBON
CONTROL
ELEMENTS
HYDROGEN COMPOUNDS
NONMETALS
OXYGEN COMPOUNDS
POLLUTION
POLLUTION CONTROL
SORPTION
WATER
520200* - Environment
Aquatic- Chemicals Monitoring & Transport- (-1989)
500200 - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)