In-Situ Groundwater Treatment for PFAS and Organic Contaminants
RemBind® Inject is an in-situ remediation solution designed to immobilize PFAS and other organic contaminants within impacted groundwater systems. Delivered directly into saturated subsurface zones using conventional injection methods, RemBind Inject helps reduce contaminant mobility while minimizing site disruption, excavation, and ongoing treatment requirements.
Unlike traditional remediation approaches that rely on pumping, treating, transporting, or disposing of contaminated groundwater, RemBind Inject works directly within the subsurface to address contamination where it exists.
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Groundwater Contamination Explained
Groundwater contamination can migrate far beyond the original source area, creating long-term environmental, regulatory, and liability challenges.
PFAS, petroleum hydrocarbons, chlorinated compounds, metals, and other contaminants can move through aquifers over time, potentially affecting groundwater resources, property redevelopment efforts, and remediation obligations. Traditional remediation approaches often involve pump-and-treat systems, excavation, disposal, or long-term management programs that can require significant infrastructure and operational expense.
RemBind Inject offers an alternative approach.
Instead of extracting contaminated groundwater for treatment, RemBind Inject is delivered directly into impacted zones where it binds contaminants and reduces their mobility. This immobilization approach can help limit contaminant migration while allowing groundwater to continue moving through the treatment area.
What Is RemBind® Inject?
RemBind Inject is a specialized injectable formulation engineered for use in contaminated groundwater environments.
The product is slurried with water and delivered into saturated subsurface media through direct-push drilling technologies and specialized injection equipment. Once placed within the treatment zone, RemBind Inject binds PFAS and other organic contaminants, reducing their mobility and helping prevent further migration.
The technology can be used to:
- Treat contaminant source areas
- Intercept migrating contaminant plumes
- Create permeable reactive barriers (PRBs)
- Support long-term groundwater management strategies
- Address PFAS and other organic contaminants without extensive site disturbance
How RemBind® Inject Works
Step 1: Site Assessment
Project teams evaluate existing groundwater data, boring logs, monitoring information, contaminant concentrations, and site conditions to develop an appropriate treatment approach.
Step 2: Design and Planning
Injection specialists develop a site-specific strategy to determine treatment areas, injection intervals, delivery methods, and reagent requirements.
Step 3: Reagent Delivery
RemBind Inject is mixed into a slurry and injected into the target treatment zone using direct-push drilling equipment and specialized pumps designed for controlled reagent emplacement.
Step 4: Immobilization and Monitoring
Once emplaced, the reagent binds contaminants within the saturated media, reducing mobility and supporting long-term contaminant management. Monitoring wells are then used to evaluate treatment effectiveness.
Key Benefits
In-Situ Groundwater Treatment
Treat contamination directly within the subsurface without the need for excavation or groundwater extraction.
Enhanced PFAS Sorption
Designed to bind both long- and short-chain PFAS compounds while also addressing other organic contaminants.
Reduced Site Disruption
Can be implemented while minimizing impacts to facility operations and site infrastructure.
Cost-Effective Alternative
May reduce reliance on extensive pumping, treatment systems, transportation, and disposal activities.
Scalable Deployment
Suitable for source areas, targeted treatment zones, and larger groundwater plumes.
Technical Support Included
Supported by remediation specialists providing evaluation, design assistance, injection planning, and implementation guidance.
Contaminants Commonly Addressed
RemBind groundwater technologies have been used in remediation strategies involving:
- PFAS (Per- and Polyfluoroalkyl Substances)
- Petroleum hydrocarbons
- BTEX compounds
- Volatile Organic Compounds (VOCs)
- Chlorinated compounds
- Phenols and cresols
- PAHs
- PCBs
- Certain metals and inorganic contaminants
Applications
PFAS Groundwater Plumes
Help immobilize PFAS within groundwater and reduce contaminant migration.
Source Area Treatment
Address contamination near active or historical release locations.
Permeable Reactive Barriers
Create long-lived treatment zones that intercept groundwater flow and contaminant migration.
Airport and Fire Training Facilities
Support remediation programs in environments frequently associated with PFAS impacts.
Military Installations
Assist with long-term groundwater management at defense-related facilities.
Industrial and Manufacturing Sites
Support treatment of groundwater impacted by legacy industrial contaminants.
Fuel Depots and Energy Infrastructure
Address petroleum-related contamination in groundwater systems.
Landfills and Redevelopment Sites
Support remediation planning that enables future land use objectives.
Proven Field Performance
A demonstration project conducted at a PFAS-impacted site adjacent to an international airport evaluated the use of RemBind Inject within contaminated groundwater. The treatment program involved injection of a RemBind slurry into a network of direct-push injection points covering a 128-square-meter treatment area.
Monitoring results showed:
- 97% reduction in PFOS + PFHxS concentrations
- 87% reduction in PFOA concentrations
- No significant reduction in groundwater seepage velocity through the treatment zone
- Temporary changes in field parameters that returned to background conditions following treatment
This project demonstrated that injected RemBind reagent could be effectively delivered into groundwater treatment zones while maintaining groundwater movement through the impacted area.
Why Carus
Carus brings decades of experience helping customers solve complex environmental and infrastructure challenges.
Through our relationship with RemBind, customers gain access to innovative groundwater remediation technologies backed by application expertise, technical support, and responsive service.
Whether evaluating PFAS contamination, planning plume management strategies, or implementing an in-situ treatment program, Carus works alongside customers from project development through implementation.
Resources
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Ready to Discuss Your Project?
Whether you are evaluating PFAS groundwater treatment options, investigating contaminant plume management strategies, or looking for practical in-situ remediation solutions, Carus can help. Contact Carus to learn more about RemBind® Inject and discuss your project requirements.