Accession Number:

AD1058105

Title:

Electrokinetic-Enhanced (EK-Enhanced) Amendment Delivery for Remediation of Low Permeability and Heterogeneous Materials

Descriptive Note:

Technical Report,09 Apr 2013,09 Apr 2018

Corporate Author:

Geosyntec Consultants Columbia United States

Personal Author(s):

• Cox,Evan
• Wang,James
• Reynolds,David
• Gent,David
• Singletary,Michael
• Wilson,Adrienne

Report Date:

2018-05-01

Pagination or Media Count:

204.0

Abstract:

This project demonstrated and validated electrokinetic EK-enhanced amendment delivery for in-situ bioremediation EK-BIO via enhanced reductive dechlorination ERD of a tetrachloroethene source area in clay. The EK-enhanced amendment delivery technology entails the establishment of an electric field in the subsurface using a network of electrodes. The electrical current and voltage gradient established across a direct-current electric field provide the driving force to transport remediation amendments, including electron donors, chemical oxidants, and even bacteria, through the subsurface. This project showed that EK could achieve relatively uniform transport in low-permeability materials. This technology also represents a remedial alternative with excellent environmental performance.

Descriptors:

• groundwater
• Bioremediation
• electrokinetics
• electrodes
• electric fields
• electron donors
• bacteria
• Electroosmosis
• safety
• HYDROGEOLOGY
• CONTAMINATION
• sampling
• WATER WELLS
• field tests
• geochemistry
• soils

Subject Categories:

• Water Pollution and Control
• Electricity and Magnetism

Distribution Statement:

APPROVED FOR PUBLIC RELEASE