Remediation of dichloromethane (DCM)-contaminated ground water

Journal Article · Sat Aug 01 00:00:00 EDT 1992 · Environmental Progress; (United States)

DOI:https://doi.org/10.1002/ep.670110314· OSTI ID:6792267

Flathman, P E; Jerger, D E; Woodhull, P M ^[1]

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1. OHM Remediation Services Corp., Findlay, OH (United States)

This case history describes the physical and biological treatment of dichloromethane (DCM)-contaminated ground water following the rupture of an underground pipeline which contaminated an estimated 11,000 m[sup 3] (14,000 yd[sup 3]) of soil and ground water in the early fall of 1983. Air stripping DCM from recovered ground water was initiated and provided an estimated 97% reduction in the ground water concentration of DCM. When it became evident that physical treatment alone would no longer be effective in removing residual DCM from the ground water environment, the practice of air stripping DCM from recovered ground water was terminated. Biological treatment was initiated and provided greater than a 500,000-fold reduction in the ground water concentration of DCM. Biological treatment had far exceeded the ability of physical treatment along to remediate a ground water environment contaminated with a biodegradable contaminant. 14 refs., 12 figs., 4 tabs.

• OSTI ID: 6792267
• Journal Information: Environmental Progress; (United States), Vol. 11:3; ISSN 0278-4491
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
GROUND WATER
REMEDIAL ACTION
METHYLENE CHLORIDE
BIODEGRADATION
CHEMICAL REACTIONS
DECOMPOSITION
HYDROGEN COMPOUNDS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXYGEN COMPOUNDS
WATER
540220* - Environment
Terrestrial- Chemicals Monitoring & Transport- (1990-)