- Program Areas
- Energy and Water
- Environmental Restoration
- Munitions Response
- Resource Conservation and Climate Change
- Weapons Systems and Platforms
Pilot-Plant Evaluation of Integrated Iron-Fenton Process for Treatment of Pink Water
This project will conduct a two-part, pilot-scale study to demonstrate and validate a zero-valent iron (ZVI) technology for reducing RDX in wastewater at Holston Army Ammunition Plant (AAP) and an integrated iron-Fenton oxidation technology for pink water treatment at Iowa AAP. The initial laboratory-scale experiments will derive and optimize design parameters for the pilot-scale systems and also will determine the optimal operational conditions for long-term performance and reliability. Pilot-scale reactors will be constructed based on these design parameters, and an economic analysis will be performed for pilot-scale as well as full-scale operations.
The integrated iron-Fenton oxidation technology is an innovative process designed to completely mineralize energetic compounds in wastewater. While ZVI has been used in permeable reactive barriers to remediate contaminated groundwater for the last decade, this project represents the first attempt to use ZVI as an aboveground reactor system for wastewater treatment. The system to be demonstrated consists of a ZVI-packed column and a subsequent Fenton's reagent reactor, in which hydrogen peroxide and Fe2+ generate Fenton's reagent. In this integrated system, the ZVI rapidly reduces energetic compounds and the Fenton's reagent reactor then oxidizes/mineralizes the reduced products. At Holston AAP, RDX reduced by ZVI alone subsequently will be oxidized in the industrial wastewater treatment plant. A joint patent by the U.S. Army Corps of Engineers and the University of Delaware has been submitted for this technology and is currently available for public review.
Integrated iron-Fenton oxidation has the potential to be a rapid, complete, reliable, and economical technology for treating pink water and other energetic compounds in munitions manufacturing wastewater. The Department of Defense would realize operational cost savings by adopting this innovative approach to wastewater treatment.
Points of Contact
Dr. Byung Kim
U.S. Army ERDC-CERL
Weapons Systems and Platforms
SERDP and ESTCP
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