Bioremediation as an efficient method to degrade creosote contaminant

Conference · · Ground Water; (United States)

OSTI ID:6839004

Newbern, V A ^[1]

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1. Univ. of Southwestern Louisiana, Lafayette, LA (United States)

A comprehensive hydrogeological monitoring evaluation was conducted to determine the efficiency of bioremediation on creosote contaminants at a pressure treatment and wool preservation site. Initially, pentachlorophenol (PCB) and diesel fuel were incorporated into the creosote with the waste water generate during production disposed of in three unlined surface impoundments. The implementation of the Corrective Action Plan (CAP) was designed to remediate ground water from the uppermost water-bearing sand (Bentley Sand) which was effected by the impoundment areas. The ground water elevations, contaminant concentrations, and several physical parameters have been monitored from a system of recovery wells. The ground water treatment was very efficient and rapid in aboveground bioreactors where microorganisms were introduced to degrade the creosote compounds, specifically the aromatic hydrocarbons. Treated ground water was then discharged to the public waste water facility or injected to recharge the Bentley Sands of the Chicot Aquifer by the use of recharge trenches. Both nutrients and air were added to the water prior to injection to increase the in situ bioremediation via air sparging lines. Hydrogeological modeling of ground water and the contaminants demonstrates the reduction of creosote constituents with the use of bioremediation.

• OSTI ID: 6839004
• Report Number(s): CONF-9410209--
• Conference Information: Journal Name: Ground Water; (United States) Journal Volume: 32:5
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540250* -- Environment
Terrestrial-- Site Resource & Use Studies-- (1990-)
BIODEGRADATION
CHEMICAL REACTIONS
CLEANING
CREOSOTE
DECOMPOSITION
DECONTAMINATION
GROUND WATER
HYDROGEN COMPOUNDS
IN-SITU PROCESSING
OXYGEN COMPOUNDS
PROCESSING
REMEDIAL ACTION
TECHNOLOGY ASSESSMENT
WATER
WATER RECLAMATION