Drip Irrigation Aided Phytoremediation for Removal of TCE from Groundwater

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Groundwater in D-Area at the Savannah River Site (SRS) is contaminated with trichloroethylene (TCE) and by-products resulting from discharges of this organic solvent during past disposal practices. This contaminated groundwater occurs primarily at depths of 9 meters to 15 meters below ground surface, well below the depths that are typically penetrated by plant roots. The process investigated in this study involved pumping water from the contaminated aquifer and discharging the water into overlying test plots two inches below the surface using drip irrigation. The field treatability study was conducted from 8/31/00 to 4/18/02 using six 0.08 hectare test plots, two ... continued below

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Wilde, E.W. April 24, 2003.

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Groundwater in D-Area at the Savannah River Site (SRS) is contaminated with trichloroethylene (TCE) and by-products resulting from discharges of this organic solvent during past disposal practices. This contaminated groundwater occurs primarily at depths of 9 meters to 15 meters below ground surface, well below the depths that are typically penetrated by plant roots. The process investigated in this study involved pumping water from the contaminated aquifer and discharging the water into overlying test plots two inches below the surface using drip irrigation. The field treatability study was conducted from 8/31/00 to 4/18/02 using six 0.08 hectare test plots, two each containing pines, cottonwoods, and no vegetation (controls). The primary objective was to determine the overall effectiveness of the process for TCE removal and to determine the principal biotic and abiotic pathways for its removal. Results demonstrated that the process provides a viable method to remove TCE-contaminated groundwater. The data clearly showed that the presence of trees reduced volatilization of TCE from the drip irrigation system to the atmosphere. Influent groundwater TCE concentrations averaging 89 mg/L were reduced to non-detectable levels (less than 5 mg/L) within the upper two feet of soil (rhizosphere).

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  • Seventh International Symposium on In Situ and On-Site Bioremediation, Orlando, FL (US), 06/02/2003--06/05/2003

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  • Report No.: WSRC-MS-2003-00141
  • Grant Number: AC09-96SR18500
  • Office of Scientific & Technical Information Report Number: 810351
  • Archival Resource Key: ark:/67531/metadc740791

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  • April 24, 2003

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  • Oct. 18, 2015, 6:40 p.m.

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  • May 5, 2016, 5:43 p.m.

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Wilde, E.W. Drip Irrigation Aided Phytoremediation for Removal of TCE from Groundwater, article, April 24, 2003; South Carolina. (digital.library.unt.edu/ark:/67531/metadc740791/: accessed September 25, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.