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Chemical Oxidation Technologies:
Lessons Learned & Best Practices
from
Expert Perspectives
Jointly prepared & presented by –
“The experts”
Cindy Schreier, Ph.D., PRIMA Environmental, Inc.
Larry Kinsman, ORIN Remediation Technologies
In collaboration with -
Mike Martinson, Delta Consultants
James F. Cuthbertson, P.E., Delta Consultants
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Today’s Agenda
Chemical Oxidation Technologies:
• Overview: Chemistries, HSE Issues, CoC Applications
• Site Characterization
• Bench-Scale Testing
• Pilot-Scale Testing
• Full-Scale Systems
• Monitoring Chemox Remediation
• Regulatory Concerns and Issues
• Case Histories: Bench-, Pilot-, and Full-Scale
• Additional References
• Your Questions and Discussion
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ITRC’s ISCO-2 Document
• Regulatory permits
• Health and safety issues
• Oxidant application
• Conceptual site model
• System strategies
• Dosage considerations
• Performance monitoring
• Cost considerations
• Emerging ISCO technologies
• Acronyms, glossary, case studies
•
ITRC ISCO team contacts
Source: The ISCO-2 document provides a detailed ready reference for consideration of an
ISCO proposal/project. ISCO guidance document is available on www.itrcweb.org under
“Guidance Documents” and “In Situ Chemical Oxidation”
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Chemical Oxidation Overview
Chemical Oxidation = Chemox
Applicability to Petroleum Hydrocarbon Contaminant Concentrations
– Potentially can be applied to site-specific conditions:
• Ground water & soil at lower ppm concentrations
– May be effective, but other technologies may be more cost-effective
• Ground water & soil at higher ppm concentrations
– “Sweet spot” for application where the relatively short duration of
Chemox can outperform other longer-term & costly O&M technologies
• Soil-sorbed residual LNAPL
– May be effective with a correspondingly high oxidant dosage
• Mobile LNAPL (free-phase petroleum product)
– An aggressive application for Chemox with the highest oxidant dosages
– Mandates better than average site characterization
– Flawless Chemox process controls are critical to control react