Enhanced degradation of dissolved benzene and toluene using a solid oxygen-releasing compound

Journal Article · · Ground Water Monitoring and Remediation; (United States)

DOI:https://doi.org/10.1111/j.1745-6592.1994.tb00097.x· OSTI ID:5217175

Bianchi-Mosquera, G C; Allen-King, R M; Mackay, D M

A field test to evaluate the applicability of an oxygen-releasing compound (ORC) to the remediation of ground water contaminated with benzene and toluene was conducted in the Borden Aquifer in Ontario, Canada. Benzene and toluene were injected as organic substrates to represent BTEX compounds, bromide was used as a tracer, and nitrate was added to avoid nitrate-limited conditions. The fate of the solutes was monitored along four lines of monitoring points and wells. Two lines studied the behavior of the solutes upgradient and down gradient of two large-diameter well screens filled with briquets containing ORC and briquets without ORC. One line was used to study the solute behavior upgradient and downgradient of columns of ORC powder placed directly in the saturated zone. The remaining line was a control. The results indicate that ORC in both briquet and powder form can release significant amounts of oxygen to contaminated ground water passing by it. In the formulation used in this work, oxygen release persisted for at least 10 weeks. Furthermore, the study indicates that the enhancement of the available dissolved oxygen content of at least 4 mg/L each of the ground water by ORC can support biodegradation of benzene and toluene dissolved in ground water.

• OSTI ID: 5217175
• Journal Information: Ground Water Monitoring and Remediation; (United States), Journal Name: Ground Water Monitoring and Remediation; (United States) Vol. 14:1; ISSN 1069-3629; ISSN GWMREV
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540250* -- Environment
Terrestrial-- Site Resource & Use Studies-- (1990-)
ALKYLATED AROMATICS
AQUIFERS
AROMATICS
BENZENE
CANADA
CLEANING
DECONTAMINATION
DEVELOPED COUNTRIES
GROUND WATER
HYDROCARBONS
HYDROGEN COMPOUNDS
LAND RECLAMATION
MANAGEMENT
MATERIALS RECOVERY
NORTH AMERICA
ONTARIO
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PROCESSING
REMEDIAL ACTION
TOLUENE
WASTE MANAGEMENT
WASTE PROCESSING
WATER