Enhanced mineralization of organic compounds in nonaqueous-phase liquids

Journal Article · Wed Feb 01 04:00:00 EST 1995 · Environmental Toxicology and Chemistry; (United States)

DOI:https://doi.org/10.1002/etc.5620140211· OSTI ID:6794180

Labare, M P; Alexander, M ^[1]

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1. Cornell Univ., Ithaca, NY (United States)

Biodegradation of phenanthrene, biphenyl, or di(2-ethylhexyl) phthalate initially present in a variety of nonaqueous-phase liquids (NAPLs) was slow in samples of soil and aquifer solids. The NAPLs were hexadecane, dibutyl phthalate, 2,2,4,4,6,8,8-heptamethylnonane, cyclohexane, commercial oils, crude oil, creosote, and kerosene. Slurrying the soil or aquifer solids markedly enhanced the rate and extent of mineralization of the test compounds initially in many of the NAPLs. Both the low rae and the extent of mineralization of the three compounds initially in dibutyl phthalate in soil slurries and of di(2-ethylhexyl) phthalate in heptamethylnonane present in slurries of aquifer solids were increased by inoculation of acclimated microbial cultures. Increasing the NAPL volume decreased phenanthrene biodegradation in soil, but the effect of larger NAPL volume could be alleviated by slurrying and inoculation. The rate or extent of mineralization in aquifer slurries of di(2-ethylhexyl) phthalate initially in some NAPLs was increased by addition of N and P, and inoculation further enhanced the degradation.

• OSTI ID: 6794180
• Journal Information: Environmental Toxicology and Chemistry; (United States), Journal Name: Environmental Toxicology and Chemistry; (United States) Vol. 14:2; ISSN ETOCDK; ISSN 0730-7268
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540220* -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (1990-)
ALKANES
AROMATICS
BIODEGRADATION
BIPHENYL
CARBOXYLIC ACID SALTS
CHEMICAL REACTIONS
CLEANING
CONDENSED AROMATICS
CREOSOTE
CYCLOALKANES
CYCLOHEXANE
DECOMPOSITION
DECONTAMINATION
DISTILLATES
ENERGY SOURCES
ENVIRONMENTAL EFFECTS
FOSSIL FUELS
FUELS
GAS OILS
HYDROCARBONS
KEROSENE
LIQUID FUELS
ORGANIC COMPOUNDS
PETROLEUM
PETROLEUM DISTILLATES
PETROLEUM FRACTIONS
PETROLEUM PRODUCTS
PHENANTHRENE
PHTHALATES
REMEDIAL ACTION
TECHNOLOGY ASSESSMENT