IN SITU CHEMICAL OXIDATION FOR REMEDIATION OF CONTAMINATED SOIL AND GROUND WATER
Abstract:Subsurface contamination by organic chemicals is a widespread and serious problem at industrial, government, and military sites. IN SITU chemical oxidation wherein strong oxidants are introduced into the subsurface, has emerged as a promising IN SITU remediation method for several reasons. Chlorinated solvents, polyaromatic hydrocarbons, and other organics can be resistant to IN SITU biodegradation or may take exceedingly long periods of time in many subsurface settings. However, these organics are amenable to rapid and complete destruction by chemical oxidation and/or to partial chemical degradation as an aid to subsequent biodegradation. Also, IN SITU chemical oxidation can be implemented with relatively simple, readily available equipment and the rate and extent of treatment can enable rapid cleanup and support industrial property transfers and Brownfields redevelopment. During the past ten years, the state-of-knowledge and standard-of-practice concerning IN SITU chemical oxidation has continued to advance. This paper describes the fundamentals of chemical oxidation and its emergence as an IN SITU remediation technology. Reaction processes and delivery systems are highlighted for three common oxidant systems including hydrogen peroxide (Fenton's reagent), permanganate, and ozone. Results of research are outlined along with observations from field applications across the U.S. Field experiences have demonstrated that the successful application of IN SITU chemical oxidation requires consideration of several factors through an integrated evaluation and design practice. It is clear that matching the oxidant and IN SITU delivery system to the contaminants of concern and the site conditions is the key to successful implementation and achieving performance goals.
Document Type: Research Article
Publication date: January 1, 2000
More about this publication?
- Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed. WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access.
- Subscribe to this Title
- Membership Information
- About WEF Proceedings
- WEFTEC Conference Information
- Ingenta Connect is not responsible for the content or availability of external websites