Method of degrading pollutants in soil

Patent · Sat Jan 01 00:00:00 EST 1994

OSTI ID:869383

Hazen, Terry C ^[1]; Lopez-De-Victoria, Geralyne ^[2]

---

1. Augusta, GA
2. Irmo, SC

A method and system for enhancing the motility of microorganisms by placing an effective amount of chlorinated hydrocarbons, preferably chlorinated alkenes, and most preferably trichloroethylene in spaced relation to the microbes so that the surprisingly strong, monomodal, chemotactic response of the chlorinated hydrocarbon on subsurface microbes can draw the microbes away from or towards and into a substance, as desired. In remediation of groundwater pollution, for example, TCE can be injected into the plume to increase the population of microbes at the plume whereby the plume can be more quickly degraded. A TCE-degrading microbe, such as Welchia alkenophilia, can be used to degrade the TCE following the degradation of the original pollutant.

• Research Organization: E I DUPONT DE NEMOURS & CO INC
• DOE Contract Number: AC09-76SR00001
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 5326703
• OSTI ID: 869383
• Country of Publication: United States
• Language: English

Related Subjects

method
degrading
pollutants
soil
enhancing
motility
microorganisms
placing
effective
amount
chlorinated
hydrocarbons
preferably
alkenes
trichloroethylene
spaced
relation
microbes
surprisingly
strong
monomodal
chemotactic
response
hydrocarbon
subsurface
draw
towards
substance
desired
remediation
groundwater
pollution
example
tce
injected
plume
increase
population
whereby
quickly
degraded
tce-degrading
microbe
welchia
alkenophilia
degrade
following
degradation
original
pollutant
chlorinated hydrocarbons
spaced relation
effective amount
chlorinated hydrocarbon
degrading pollutants
/435/