Verification Monitoring for In Situ Chemical Reduction Using Zero-Valent Zinc, A Novel Technology for Remediation of Chlorinated Alkanes
Abstract
The reactivity profile of "lesser chlorinated" aliphatic hydrocarbons such as 1,2,3-trichloropropane (TCP) is understood less well relative to highly chlorinated aliphatic compounds and is not systematically considered when developing remedial approaches for these compounds. TCP was identified as number three in a list of primary emerging contaminants at a recent SERDP/ESTCP workshop on long term management of contaminated sites. To date, TCP has been observed at more than 45 installations. The median detected concentrations (approximately 1 microgram/L) have been low but are nonetheless high relative to regulatory levels for TCP. Remediation options for TCP are limited, particularly at current and anticipated future regulatory levels. One treatment process that produces promising rates of TCP degradation is in situ chemical reduction (ISCR) with zero-valent zinc (ZVZ). In 2014, the Navy implemented a pilot study to evaluate the feasibility and performance of in situ ZVZ remediation of TCP in groundwater. The pilot study results showed evidence of TCP degradation, but the pilot study monitoring was not designed to evaluate efficacy of the ZVZ injections or long-term performance of the zinc media with respect to degradation of TCP.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 05, 2020
- Accession Number
- AD1154476
Entities
People
- Eric Suchomel
- Lea Kane
- Rula Deeb
Organizations
- Naval Facilities Engineering Systems Command
- Oregon Health & Science University