In situ measurement of adsorption and biotransformation at a hazardous waste site
A three well injection-production test was performed at the United Creosoting Company (UCC) site in Conroe, Texas, to estimate the effective in situ retardation factors for adsorption and to evaluate the significance of biotransformation in limiting the transport of polycyclic aromatics present in the shallow aquifer. The field test was also used as a model to determine if this type of testing would be feasible at other hazardous waste sites. During the test, chloride, a non-reactive tracer and two organic compounds, naphthalene and paradichlorobenzene (pDCB), were injected into a center well for 24 hours followed by clean ground water for six days. Ground water was continuously produced from two adjoining wells and monitored to observe the breakthrough of these compounds. Data from the test were analyzed by comparing the statistical moments of the chloride and organics distributions. Retardation factors for naphthalene and pDCB were estimated to be 0.03 and 0.97 by comparison of the statistical moments. A significant loss of naphthalene and pDCB was also observed during the three well test, apparently due to biotransformation. These results suggest that biotransformation is the major process limiting the transport of naphthalene and similar compounds at the UCC site.
- Research Organization:
- North Carolina State Univ., Raleigh
- OSTI ID:
- 5282526
- Journal Information:
- Water Resour. Bull.; (United States), Journal Name: Water Resour. Bull.; (United States) Vol. 23:4; ISSN WARBA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
560300 -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ADSORPTION
AQUIFERS
AROMATICS
BIODEGRADATION
CHEMICAL REACTIONS
CHEMICAL WASTES
CHLORIDES
CHLORINATED AROMATIC HYDROCARBONS
CHLORINE COMPOUNDS
CONDENSED AROMATICS
CONTAMINATION
DECOMPOSITION
ENVIRONMENTAL TRANSPORT
FEASIBILITY STUDIES
FEDERAL REGION VI
GROUND WATER
HALIDES
HALOGEN COMPOUNDS
HALOGENATED AROMATIC HYDROCARBONS
HAZARDOUS MATERIALS
HYDROCARBONS
HYDROGEN COMPOUNDS
MASS TRANSFER
MATERIALS
MATHEMATICAL MODELS
NAPHTHALENE
NORTH AMERICA
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXYGEN COMPOUNDS
SORPTION
TEXAS
USA
WASTES
WATER