Method and apparatus for destroying organic contaminants in aqueous liquids
Abstract
A method and apparatus for destroying organic contaminants, such as trichloroethylene, in aqueous liquids, such as groundwater, utilizing steam stripping integrated with biodegradation. The contaminated aqueous liquid is fed into a steam stripper causing the volatilization of essentially all of the organic contaminants and a portion of the aqueous liquid. The majority of the aqueous liquid is discharged from the steam stripper. The volatilized vapors are then condensed to the liquid phase and introduced into a bioreactor. The bioreactor contains methanotrophic microorganisms which convert the organic contaminants into mainly carbon dioxide. The effluent from the bioreactor is then recycled back to the steam stripper for further processing.
- Inventors:
-
- Lenior City, TN
- Oak Ridge, TN
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- OSTI Identifier:
- 868933
- Patent Number(s):
- 5246584
- Assignee:
- Martin Marietta Energy Systems, Inc. (Oak Ridge, TN)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
C - CHEMISTRY C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- DOE Contract Number:
- AC05-84OR21400
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- method; apparatus; destroying; organic; contaminants; aqueous; liquids; trichloroethylene; groundwater; utilizing; steam; stripping; integrated; biodegradation; contaminated; liquid; fed; stripper; causing; volatilization; essentially; portion; majority; discharged; volatilized; vapors; condensed; phase; introduced; bioreactor; contains; methanotrophic; microorganisms; convert; mainly; carbon; dioxide; effluent; recycled; processing; organic contaminant; carbon dioxide; liquid phase; organic contaminants; aqueous liquid; reactor contains; aqueous liquids; steam stripping; destroying organic; /210/435/
Citation Formats
Donaldson, Terrence L, and Wilson, James H. Method and apparatus for destroying organic contaminants in aqueous liquids. United States: N. p., 1993.
Web.
Donaldson, Terrence L, & Wilson, James H. Method and apparatus for destroying organic contaminants in aqueous liquids. United States.
Donaldson, Terrence L, and Wilson, James H. Fri .
"Method and apparatus for destroying organic contaminants in aqueous liquids". United States. https://www.osti.gov/servlets/purl/868933.
@article{osti_868933,
title = {Method and apparatus for destroying organic contaminants in aqueous liquids},
author = {Donaldson, Terrence L and Wilson, James H},
abstractNote = {A method and apparatus for destroying organic contaminants, such as trichloroethylene, in aqueous liquids, such as groundwater, utilizing steam stripping integrated with biodegradation. The contaminated aqueous liquid is fed into a steam stripper causing the volatilization of essentially all of the organic contaminants and a portion of the aqueous liquid. The majority of the aqueous liquid is discharged from the steam stripper. The volatilized vapors are then condensed to the liquid phase and introduced into a bioreactor. The bioreactor contains methanotrophic microorganisms which convert the organic contaminants into mainly carbon dioxide. The effluent from the bioreactor is then recycled back to the steam stripper for further processing.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 1993},
month = {Fri Jan 01 00:00:00 EST 1993}
}
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