Low volatile organics in groundwater-techno-economic evaluation of an innovative treatment process
Conventional air stripping and granular activated carbon adsorption are two of the best available technologies for removing organic contaminants from water. The air-stripping process is uneconomical for contaminants of low volatility, and the adsorption process is considerably more expensive. An innovative process introduced as cascade air stripping was demonstrated to be more efficient than the conventional air-stripping process in removing contaminants of semi and low volatility. In the research, design, scale-up and engineering procedures for the cascade air-stripping process are developed and verified using laboratory and field scale systems. In addition, it is compared with the conventional air stripping and adsorption processes on the basis of capital, operating and overall treatment costs. The process model and the scale-up procedures developed in the study were found to work well for the laboratory- and full-scale systems. For the five typical contaminants evaluated, cascade air-stripping system was found to be consistently more cost-effective than conventional air stripping and granular activated carbon adsorption.
- Research Organization:
- New Mexico State Univ., Las Cruces, NM (United States). New Mexico Water Resources Research Inst.
- OSTI ID:
- 6944908
- Report Number(s):
- PB-93-149961/XAB; TECHNICAL COMPLETION--270; CNN: DI-14-08-0001-G1578-09
- Country of Publication:
- United States
- Language:
- English
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Treatment of contaminated groundwaters with granular activated carbon and air stripping
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Related Subjects
540220* -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (1990-)
ACTIVATED CARBON
ADSORBENTS
ADSORPTION
AIR INFILTRATION
BENCH-SCALE EXPERIMENTS
CAPITAL
CARBON
COMPARATIVE EVALUATIONS
CONTROL
COST ESTIMATION
DESIGN
DIRECT REACTIONS
ELEMENTS
ENGINEERING
EVALUATION
GROUND WATER
HYDROGEN COMPOUNDS
NONMETALS
NUCLEAR REACTIONS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PERFORMANCE TESTING
POLLUTION CONTROL
SORPTION
STRIPPING
TESTING
TRANSFER REACTIONS
VERIFICATION
VOLATILITY
WATER
WATER POLLUTION CONTROL
WATER TREATMENT
WORK