Zero Valent Iron Injection Tool (Web-Tool)

Title:

Resource Type:

web links

Producers or distributor

NAVFAC

Author / Producer Type:

Agency, regulator or other governmental or inter-governmental body

Web link for product information:

http://www.ert2.org/ZVIT.aspx#tool=zvit&page=Introduction1

EUGRIS Keyword(s):

Contaminated land-->Remediation options-->In situ treatment technologies

Short description:

Zero valent iron (ZVI) is a strong reducing agent. It has been used successfully in numerous in situ applications to address chlorinated organic, metal, and explosive compounds (including perchlorate) in contaminated groundwater. ZVI is suited both for injection directly into source zones and for placement along a permeable reactive barrier as a groundwater containment remedy. This training tool focuses on ZVI injection for treating chlorinated solvents. ZVI can be injected in a variety of sizes, media, and methods. Alternative injection sizes include micron or nanoscale ZVI (nZVI). Alternative media include ZVI contained in an emulsified oil (EZVI) or with other iron-carbon combinations (e.g., EHC?; ABC?) to stimulate anaerobic biodegradation. Alternative injection technologies include pressurized nitrogen gas or water as carrying fluids to help the iron powders disperse into the subsurface. ZVI technology has grown and progressed in terms of its use, regulatory acceptance, application methods, and reactive media options. This Web tool is designed to assist Navy remedial project managers in the development and implementation of effective ZVI injection applications. The site uses graphic illustrations to demonstrate the use and behavior of ZVI in the subsurface. Users can: learn about the scientific concepts related to the use of ZVI and the types of ZVI media available for injection, understand the different injection methods used to deliver ZVI to the subsurface, understand which factors influence the applicability of the ZVI technologies, and benefit from the lessons learned during ZVI use at other sites.

Submitted By:

Professor Paul Bardos WhoDoesWhat? Last update: 01/11/2011