A Risk/Benefit Appraisal for the Application of Nano-Scale Zero Valent Iron (NZVI) for the Remediation of Contaminated Sites
Bardos, P., B. Bone, P. Daly, D. Elliott, S. Jones, G. Lowry, and C. Merly.
NanoRem Issues Paper, 89 pp, 2014

This report discusses the relative risks and benefits of NZVI usage for in situ remediation (i.e., the potential for the NZVI treatment agent itself to present human health or environmental risks) and its sustainability as a technique; identifies the areas where further investigation might be required; and provides an overview of NZVI use in full-scale, pilot, and lab studies to date. This paper is intended to help stakeholders by identifying key issues and providing a basis for evidence-based decisions.

Permeable Barrier Installation Profiles
RTDF (Remediation Technologies Development Forum)

This webpage was last updated in August 2001 but contains numerous profiles of barriers constructed before then.

Permeable Reactive Barriers Just Keep Getting Better: How to Keep Up with the Times
French, K. | SMART Remediation 3 February, virtual, 58 slides, 2022

This presentation outlines an improved approach to permeable reactive barrier (PRB) design that takes advantage of the current state of knowledge and technology in the environmental industry. Aspects discussed include necessary site characterization data inputs; high-resolution PRB alignment profiling; desktop modeling and preliminary design; bench-scale PRB design testing and optimization; detailed design and sensitivity analysis; installation techniques, including in fractured bedrock; and new QA/QC test methods for reactive media, including AC amendments. The presentation also provides examples of recently completed projects. The updated approach may serve as a roadmap for environmental practitioners to increase the certainty of performance and cost-effectiveness for all types of PRBs.

Progress in the Development and Application of Permeable Reaction Barriers for Remediation of Dissolved Oil Contaminants in Groundwater
Shen, H., Y. Huang, and Y. Su. ǀ Water and Environment Journal [Published online 10 September 2021 prior to print]

This article reviews and compares the application of permeable reaction barriers (PRBs) to remove dissolved oil contaminants. Research gaps are highlighted to clarify previous research results and provide references for future research on remediation of contamination by dissolved oil contaminants in groundwater. The article focuses on the relationship between structure design, media types, and service life of PRBs, along with groundwater flow velocity, temperature, pH, and other hydrochemical conditions. These influencing factors are used to explain and analyze the remediation of oil contamination in groundwater.

Events and Media

CLU-IN Archived Webinars

US EPA/ORD's Engineering Issue Paper: Electrokinetic (EK)-Enhanced In situ Remediation Technologies — Options for Addressing Contaminants in Low-Permeability (Low-k) Environments
U.S. EPA Office of Research and Development (ORD) Engineering and Groundwater Technical Support Centers
September 26, 2024, 1 Hour, 30 Minutes

Increasing Treatment Certainty while Controlling Remediation Cost - Case Studies using Hydraulic Fracturing to Deliver Amendments at Low-Permeability Sites
Society of American Military Engineers (SAME) Denver Post, SAME Philadelphia Post, and US EPA
July 14, 2021, 1 Hour, 30 Minutes

FRTR Spring 2020 Meeting, Session 2: Bioremediation Advances - New Strategies, Optimization, and Performance Monitoring
Federal Remediation Technologies Roundtable (FRTR)
June 5, 2020, 2 Hours, 30 Minutes

FRTR Spring 2020 Meeting, Session 1: Bioremediation Advances - New Strategies, Optimization, and Performance Monitoring
Federal Remediation Technologies Roundtable (FRTR)
May 29, 2020, 2 Hours, 30 Minutes

FRTR Presents...Synthesizing Evolving Conceptual Site Models (CSMs) with Applicable Remediation Technologies
Federal Remediation Technologies Roundtable (FRTR)
April 1, 2020, 2 Hours

High Resolution Site Characterization (HRSC): Pragmatic Approaches to Remediation Success
U.S. EPA, Office of Land and Emergency Management (OLEM), Office of Underground Storage Tanks (OUST)
February 20, 2018, 2 Hours, 30 Minutes

Session I: Biogeochemical Factors Impacting in situ Remediation of Metals and PAH Mixtures
NIEHS Superfund Research Program
February 2, 2015, 2 Hours

NARPM Presents...Decision Support System for Matrix Diffusion Modeling
EPA Office of Superfund Remediation and Technology Innovation
September 22, 2014, 2 Hours

ITRC Permeable Reactive Barrier: Technology Update
Interstate Technology and Regulatory Council
October 11, 2012, 2 Hours, 15 Minutes

Treatment of Heavy Metals and Elimination of Sulfur with a Novel Sulfate Reducing Permeable Reactive Barrier Containing ZVI
National Institutes of Health, National Institute of Environmental Health Sciences, Superfund Basic Research Program
August 27, 2008, 2 Hours

Bioavailability of Organic Compounds: Methods and Case Studies
National Institutes of Health, National Institute of Environmental Health Sciences, Superfund Basic Research Program
June 11, 2008, 3 Hours

7th Passive Sampling Workshop and Symposium (Day 2)
Columbia Environmental Research Center, U. S. Geological Survey, Department of the Interior, and the Virginia Department of Environmental Quality
April 25, 2007, 8 Hours

7th Passive Sampling Workshop and Symposium (Day 1)
Columbia Environmental Research Center, U. S. Geological Survey, Department of the Interior, and the Virginia Department of Environmental Quality
April 24, 2007, 3 Hours, 45 Minutes

ITRC Permeable Reactive Barriers: Lessons Learned and New Directions
Interstate Technology and Regulatory Council
June 15, 2006, 2 Hours, 15 Minutes

ITRC Advanced Techniques on Installation of Iron Based Permeable Reactive Barriers and Non-Iron Based Barrier Treatment Material
Interstate Technology and Regulatory Council
March 21, 2002, 2 Hours, 15 Minutes

ITRC Permeable Reactive Barriers for Chlorinated Solvent, Inorganic, and Radionuclide Contamination
Interstate Technology and Regulatory Council
March 19, 2002, 2 Hours, 15 Minutes