Record Display for the EPA National Library Catalog


Main Title Control of Aromatic Waste Air Streams by Soil Bioreactors.
Author Miller, D. E. ; Canter., L. W. ;
CORP Author Robert S. Kerr Environmental Research Lab., Ada, OK. ;Oklahoma Univ., Norman. Environmental and Ground Water Inst.
Publisher c1991
Year Published 1991
Report Number EPA/600/J-92/030;
Stock Number PB92-144021
Additional Subjects Soil treatment ; Land pollution control ; Water pollution control ; Biodegradation ; Aromatic compounds ; Microbial degradation ; Biological treatment ; Storage tanks ; Underground storage ; Gasoline ; Ground water ; Aquifers ; Waste disposal ; Superfund ; Stripping ; Volatile organic compounds ; Reprints ; Soil venting
Library Call Number Additional Info Location Last
NTIS  PB92-144021 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 9p
Contamination of groundwater resources is a serious environmental problem which is continuing to increase in occurrence in the United States. It has been reported that leaking underground gasoline storage tanks may pose the most serious threat of all sources of groundwater contamination. Gasolines are comprised of a variety of aliphatic and aromatic hydrocarbons. The aromatic portion consists primarily of benzene, toluene, ethylbenzene, and xylenes (BTEX compounds). BTEX compounds are also among the most frequency identified substances at Superfund sites. Pump and treat well systems are the most common and frequently used technique for aquifer restoration. Treatment is often in the form of air stripping to remove the volatile components from the contaminated water. Additionally, soil ventilation processes have been used to remove volatile components from the vadose zone. Both air stripping and soil ventilation produce a waste gas stream containing volatile compounds which is normally treated by carbon adsorption or incineration. Both treatment processes require a substantial capital investment and continual operation and maintenance expenditures. The objective of the study was to examine the potential of using soil bioreactors to treat a waste gas stream produced by air stripping or soil ventilation process. Previous studies have shown that various hydrocarbons can be successfully treated with soils. The study examined the removal of BTEX compounds within soil columns and the influence of soil type, inlet concentration, and inlet flow rate on the removal efficiency.