Effect of microbial polymers on the sorption and transport of phenanthrene in a low-carbon sand

Journal Article · Thu Mar 31 23:00:00 EST 1994 · Environmental Science and Technology; (United States)

DOI:https://doi.org/10.1021/es00053a003· OSTI ID:7017066

Dohse, D M; Lion, L W ^[1]

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

Extracellular polymers of bacterial origin were analyzed for their effect on the sorption behavior of phenanthrene on a low-carbon aquifer sand. Batch experiments indicated that 85% of the polymers tested acted to decrease the distribution coefficient. Column experiments revealed a decrease in the retardation factor of phenanthrene by approximately 40% in the presence of an extracellular polymer produced by a Gram-negative motile rod isolated from a coal tar waste site. This polymer did not, however, influence the mineralization of phenanthrene and was not rapidly degraded by a mixed culture. The combination of the ability of the polymer to influence phenanthrene transport as well as its apparent persistence and lack of a negative effect on phenanthrene degradation suggest the extracellular polymers can act as agents that enhance PAH transport in natural systems. 50 refs., 8 figs., 2 tabs.

• OSTI ID: 7017066
• Journal Information: Environmental Science and Technology; (United States), Journal Name: Environmental Science and Technology; (United States) Vol. 28:4; ISSN ESTHAG; ISSN 0013-936X
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010500 -- Coal
Lignite
& Peat-- Products & By-Products
010900 -- Coal
Lignite
& Peat-- Environmental Aspects
54 ENVIRONMENTAL SCIENCES
540220 -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (1990-)
540311 -- Environment
Aquatic-- Basic Studies-- Radiometric Techniques-- (1990-)
540320* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (1990-)
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
AQUIFERS
AROMATICS
BACTERIA
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CARBON 14
CARBON ISOTOPES
CHROMATOGRAPHY
COAL TAR
COLLOIDS
CONDENSED AROMATICS
DATA
DISPERSIONS
ENVIRONMENTAL TRANSPORT
EVEN-EVEN NUCLEI
EXPERIMENTAL DATA
GROUND WATER
HYDROCARBONS
HYDROGEN COMPOUNDS
INFORMATION
ISOTOPE APPLICATIONS
ISOTOPES
LIGHT NUCLEI
LIQUID COLUMN CHROMATOGRAPHY
MASS TRANSFER
MATHEMATICAL MODELS
MICELLAR SYSTEMS
MICROORGANISMS
MINERALIZATION
NUCLEI
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OTHER ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PHENANTHRENE
POLLUTION
POLYMERS
RADIOISOTOPES
SAND
SEPARATION PROCESSES
SORPTION
TAR
TRACER TECHNIQUES
WATER
WATER POLLUTION
YEARS LIVING RADIOISOTOPES