Field Mesocosm Testing of In Situ PFAS Treatment Trains (578)
Abstract
NESDI project #578 demonstrated a suite of laboratory and field methods to evaluate mature sorbents (granulated activated carbon [GAC], ion-exchange resin [e.g PFA694E, IRA958, etc.], biochar, and Osorb (registered trademark)) as possibilities for mitigation of PFAS constituents at Navy sites. The methods included a preliminary laboratory screening to down-select sorbents, laboratory column-based testing of promising sorbents and combinations of sorbents in the lab under various water quality conditions, and development and both lab and a pilot field testing of a field apparatus to test the efficacy of sorbents at an actual field site. The field demonstration was conducted at former MCAS Tustin. Background water quality conditions (including water hardness, pH, and dissolved organic matter), as well as the concentrations and types of PFAS, affect the overall efficacy of different types of sorbent materials to treat PFAS in groundwater. This project contributed new understanding to these dynamics and demonstrated that field-testing using actual site water in the project-developed Sorbent Onsite Testing Apparatus (SOTA) was an effective method to evaluate and select sorbent materials for site treatment.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 2023
- Accession Number
- AD1207462
Entities
People
- Jessica Carilli
- L. Hsu
- Lina Yiu
- Michael D Shields
- Nicholas Hayman
- Robert George
Organizations
- Naval Information Warfare Center Pacific