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Removal of uranium from water using terrestrial plants
Year:
1997
Authors :
Kapulnik, Yoram
;
.
Volume :
31
Co-Authors:
Dushenkov, S., Phytotech, Inc., Monmouth Junction, NJ 08852, United States
Vasudev, D., Phytotech, Inc., Monmouth Junction, NJ 08852, United States
Kapulnik, Y., Phytotech, Inc., Monmouth Junction, NJ 08852, United States
Gleba, D., Ctr. for Agric. Molecular Biology, Rutgers University, New Brunswick, NJ 08903-0231, United States
Fleisher, D., Bioresource Engineering Department, Rutgers University, New Brunswick, NJ 08903, United States
Ting, K.C., Bioresource Engineering Department, Rutgers University, New Brunswick, NJ 08903, United States
Ensley, B., Phytotech, Inc., Monmouth Junction, NJ 08852, United States
Facilitators :
From page:
3468
To page:
3474
(
Total pages:
7
)
Abstract:
Uranium (U) contamination of groundwater poses a serious environmental problem in uranium mining areas and in the vicinity of nuclear processing facilities. Preliminary laboratory experiments and treatability studies indicated that the roots of terrestrial plants could be efficiently used to remove U from aqueous streams (rhizofiltration). Certain sunflower plants were found to have a high affinity for U and were selected for treatment of contaminated water. Almost all of the U removed from the water in the laboratory was concentrated in the roots. Bioaccumulation coefficients based on the ratios of U concentrations in the roots vs U concentrations in the aqueous phase reached 30 000. Rhizofiltration technology has been tested in the field with U-contaminated water at concentrations of 21-874 μg/L at a former U processing facility in Ashtabula, OH. The pilot-scale rhizofiltration system provided final treatment to the site source water and reduced U concentration to <20 μg/L (EPA Water Quality Standard) before discharge to the environment. System performance was subsequently evaluated under different flow rates permitting the development of effectiveness estimates for the approach.Uranium(U) contamination of groundwater poses a serious environmental problem in uranium mining areas and in the vicinity of nuclear processing facilities. Preliminary laboratory experiments and treatability studies indicated that the roots of terrestrial plants could be efficiently used to remove U from aqueous streams (rhizofiltration). Certain sunflower plants were found to have a high affinity for U and were selected for treatment of contaminated water. Almost all of the U removed from the water in the laboratory was concentrated in the roots. Bioaccumulation coefficients based on the ratios of U concentrations in the roots vs U concentrations in the aqueous phase reached 30 000. Rhizofiltration technology has been tested in the field with U-contaminated water at concentrations of 21-874 μg/L at a former U processing facility in Ashtabula, OH. The pilot-scale rhizofiltration system provided final treatment to the site source water and reduced U concentration to <20 μg/L (EPA Water Quality Standard) before discharge to the environment. System performance was subsequently evaluated under different flow rates permitting the development of effectiveness estimates for the approach.
Note:
Related Files :
Filtration
groundwater
Ground Water
plant
pollution
radioactive contamination
streamwater
water treatment
Show More
Related Content
More details
DOI :
10.1021/es970220l
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
30352
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:53
Scientific Publication
Removal of uranium from water using terrestrial plants
31
Dushenkov, S., Phytotech, Inc., Monmouth Junction, NJ 08852, United States
Vasudev, D., Phytotech, Inc., Monmouth Junction, NJ 08852, United States
Kapulnik, Y., Phytotech, Inc., Monmouth Junction, NJ 08852, United States
Gleba, D., Ctr. for Agric. Molecular Biology, Rutgers University, New Brunswick, NJ 08903-0231, United States
Fleisher, D., Bioresource Engineering Department, Rutgers University, New Brunswick, NJ 08903, United States
Ting, K.C., Bioresource Engineering Department, Rutgers University, New Brunswick, NJ 08903, United States
Ensley, B., Phytotech, Inc., Monmouth Junction, NJ 08852, United States
Removal of uranium from water using terrestrial plants
Uranium (U) contamination of groundwater poses a serious environmental problem in uranium mining areas and in the vicinity of nuclear processing facilities. Preliminary laboratory experiments and treatability studies indicated that the roots of terrestrial plants could be efficiently used to remove U from aqueous streams (rhizofiltration). Certain sunflower plants were found to have a high affinity for U and were selected for treatment of contaminated water. Almost all of the U removed from the water in the laboratory was concentrated in the roots. Bioaccumulation coefficients based on the ratios of U concentrations in the roots vs U concentrations in the aqueous phase reached 30 000. Rhizofiltration technology has been tested in the field with U-contaminated water at concentrations of 21-874 μg/L at a former U processing facility in Ashtabula, OH. The pilot-scale rhizofiltration system provided final treatment to the site source water and reduced U concentration to <20 μg/L (EPA Water Quality Standard) before discharge to the environment. System performance was subsequently evaluated under different flow rates permitting the development of effectiveness estimates for the approach.Uranium(U) contamination of groundwater poses a serious environmental problem in uranium mining areas and in the vicinity of nuclear processing facilities. Preliminary laboratory experiments and treatability studies indicated that the roots of terrestrial plants could be efficiently used to remove U from aqueous streams (rhizofiltration). Certain sunflower plants were found to have a high affinity for U and were selected for treatment of contaminated water. Almost all of the U removed from the water in the laboratory was concentrated in the roots. Bioaccumulation coefficients based on the ratios of U concentrations in the roots vs U concentrations in the aqueous phase reached 30 000. Rhizofiltration technology has been tested in the field with U-contaminated water at concentrations of 21-874 μg/L at a former U processing facility in Ashtabula, OH. The pilot-scale rhizofiltration system provided final treatment to the site source water and reduced U concentration to <20 μg/L (EPA Water Quality Standard) before discharge to the environment. System performance was subsequently evaluated under different flow rates permitting the development of effectiveness estimates for the approach.
Scientific Publication
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