Phytotechnology Project Profiles
Phytoremediation at RTDF Site A in California
Last Updated: December 2006 |
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| Site Information | ||
| Site Name, Location: | RTDF Site A, Central, CA, United States | |
| Site Type: | Petroleum Refining and Reuse | |
| 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 A in California | ||||||||||||||||
| Site History and Background: | The site is an active petroleum refinery. Source of contaminants are crude oils and API separator sludge from the wastewater treatment system that was deposited in oxidation ponds for a long time. | ||||||||||||||||
| Scale: | Pilot/Field Demonstration | ||||||||||||||||
| Project Status: | Complete | ||||||||||||||||
| Project Start Date: | December 1998 | ||||||||||||||||
| Project Completion Date: | June 2000 | ||||||||||||||||
| 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: | Rye Grass Legumes Fescue Grass |
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| Planting Description: | All vegetation was removed in all plots prior to new planting. Treatment 1: Rye, legumes, and fescue with perennial ryegrass, blando brown, and small fescue dominant Treatment 2: native California grasses with perennial ryegrass, small fescue, and wild oats dominant Treatment 3: unvegetated | ||||||||||||||||
| Planting Area: | 9,000 square feet | ||||||||||||||||
| Evapotranspiration Rates: | Not available | ||||||||||||||||
| Climate: | The local climate is Mediterranean with a winter rainy season and main active growth from December through May. Average temperature range - 43 to 72F; Mean annual precipitation - 23"; Growing season - 270 days; No frost. | ||||||||||||||||
| O & M Requirements: | Vegetated plots were fertilized. Glyphosate was used for weeding on unvegetated plot. | ||||||||||||||||
| Performance Data: | Vegetation grew well, but changes in concentrations from initial to final sampling did not show a difference between treatments. | ||||||||||||||||
| Cost of the Phytotechnology Project: | Not available | ||||||||||||||||
| Lessons Learned: | At this highly variable site, plants grew well in weathered hydrocarbons, but there was no clear evidence of a benefit of vegetation for increasing hydrocarbon dissipation. It is possible that the variability patterns obscure the results or a longer period of treatment time is needed. | 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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