CLU-IN.ORG | Technology Focus: MULTI-PHASE EXTRACTION, Overview

Multi-Phase Extraction

Select a Topic | Technology Focus Home | Suggest Resource

◊ Air Sparging
◊ Bioreactor Landfills
◊ Bioremediation of Chlorinated Solvents
◊ Bioventing and Biosparging
◊ Electrokinetics: Electric Current Technologies
◊ Fracturing
◊ Ground-Water Circulating Wells
◊ In Situ Flushing
◊ In Situ Oxidation
◊ Multi-Phase Extraction
◊ Natural Attenuation
◊ Permeable Reactive Barriers
◊ Phytoremediation
◊ Remediation Optimization
◊ Soil Vapor Extraction
◊ Soil Washing
◊ Solvent Extraction
◊ Thermal Treatment: Ex Situ
◊ Thermal Treatment: In Situ

Overview

Multi-phase extraction uses a vacuum system to remove various combinations of contaminated groundwater, separate-phase petroleum product, and vapors from the subsurface. The system lowers the water table around the well, exposing more of the formation. Contaminants in the newly exposed vadose zone are then accessible to vapor extraction. Once above ground, the extracted vapors or liquid-phase organics and ground water are separated and treated.

4.39 Bioslurping (In Situ Ground Water Remediation Technology)
In Remediation Technologies Screening Matrix and Reference Guide, Version 3.0. Federal Remediation Technologies Roundtable.

4.41 Dual Phase Extraction (In Situ Ground Water Remediation Technology)
In Remediation Technologies Screening Matrix and Reference Guide, Version 3.0. Federal Remediation Technologies Roundtable.

4.42 Fluid/ Vapor Extraction (In Situ Ground Water Remediation Technology)
In Remediation Technologies Screening Matrix and Reference Guide, Version 3.0. Federal Remediation Technologies Roundtable.

BioslurpingTechnology Overview Report
1996. Ralinda Miller, Ground-Water Remediation Technologies Analysis Center. TO-96-05, 10 pp.

Treatment Technologies for Site Cleanup: Annual Status Report (ASR), Twelfth Edition
EPA 542-R-07-012, 2007

ASR Remediation Database

View/Download Previous Editions

The Twelfth Edition of this report, published by the EPA Office of Superfund Remediation and Technology Innovation (OSRTI) in September 2007, documents treatment technology applications at more than 1,900 soil and groundwater cleanup projects at National Priorities List (NPL) sites. The status of more than 1,200 projects included in the ASR Eleventh Edition is updated, and information about 192 new projects derived from Records of Decision (ROD) signed from 2002 through 2005 is added. The report also includes a special section about on-site containment remedies. The ASR is based on the analysis of nearly 3,000 RODs signed since 1982 at 1,536 NPL sites. The online version includes new downloadable spreadsheets with the data for several of the key tables and figures in the report. Specific information about each technology application included in the ASR Twelfth Edition is available in the ASR Remediation Database.