Phytotechnology Project Profiles
Phytoremediation at RTDF Site G in Kansas
Last Updated: December 2006 |
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| Site Information | ||
| Site Name, Location: | RTDF Site G, Fort Riley, KS, United States | |
| Site Type: | Vehicle Maintenance | |
| Is this a Federal Superfund Site? |
No | |
| Is this a Federal or Military Site? |
No | |
Project Information |
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| Project Name: | Phytoremediation at RTDF Site G in Kansas | ||||||||||||||||
| Site History and Background: | Source of contamination is sediments from vehicle repair operations accumulated in a lagoon. | ||||||||||||||||
| Scale: | Pilot/Field Demonstration | ||||||||||||||||
| Project Status: | Complete | ||||||||||||||||
| Project Start Date: | September 1999 | ||||||||||||||||
| Project Completion Date: | 2002 | ||||||||||||||||
| Media Treated: |
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| Contaminants Treated: |
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| Phytotechnology Mechanism(s): | Phytostabilization Rhizodegradation |
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| Plants and other Vegetation Used: | Switch Grass Wester Wheat Grass Sweet Clover Tall Fescue |
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| Planting Description: | Treatment 1: 10 - 15% western wheatgrass, 20 - 25% sweetclover, and 60 - 70% tall fescue Treatment 2: switchgrass Treatment 3: unvegetated | ||||||||||||||||
| Planting Area: | 4,800 square feet | ||||||||||||||||
| Evapotranspiration Rates: | Not available | ||||||||||||||||
| Climate: | Average temperature range - 17 to 91F; Mean annual precipitation - 33" (but the climate was drier than normal during the trial period); Growing season - 180 days; Average first frost - October 15; Average last frost - April 15 | ||||||||||||||||
| O & M Requirements: | Vegetated plots were fertilized twice a year with 50 pounds nitrogen per acre and 25 pounds phosphorus per acre. Unvegetated plots were weeded with glyphosate. | ||||||||||||||||
| Performance Data: | Vegetation treatments with added fertilizer resulted in lower concentrations of TPH and PAHs compared to unvegetated plots. Reductions in hydrocarbons concentrations were slower at lower soil depths, but the difference between vegetated and unvegetated treatments were larger for deeper soil samples. Vegetation established well; however, a high proportion of the plant cover was volunteer species including cheatgrass. Plant root growth and aboveground biomass was generally less than at other RTDF sites. Sufficient reductions in hydrocarbons were likely achieved in one year to satisfy potential risk based cleanup requirements. | ||||||||||||||||
| Cost of the Phytotechnology Project: | Not available | ||||||||||||||||
| Lessons Learned: | The biomarker hopane was useful for normalization of petroleum hydrocarbons data to reduce experimental error and provide better discrimination of treatment effects. | Point(s) of Contact |
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Peter Kulakow Kansas State University United States Telephone: (785) 532-7239 E-mail: kulakow@ksu.edu |
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| Information Source(s): | Kulakow, P. 2000. Annual Report of the RTDF Phytoremediation Action Team - TPH Subgroup Cooperative Field Trials. Kulakow, P. 2006. Final Report - RTDF Phytoremediation Action Team TPH Subgroup: Cooperative Field Trials (draft). |
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