PFAS detection on your site? You have remediation options
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There are only three ways to treat PFAS in the environment according to the EPA:
- Activated carbon treatment (most common)
- Ion-exchange using resins
- Reverse osmosis (high-pressure membranes, also known as RO)
These all require a pump and treat well system. The system typically involves an injection well (or two), a pumping well (or three) to keep water from leaving the property, and a treatment house containing the remediation processes. These are laborious to set up and require 24/7 monitoring and ongoing maintenance.
One more less-known option exists:
- In-situ ("in place") PFAS treatment
Since underground treatment of PFAS is required, operators will be drilling sampling wells. They might as well drill them large enough to use them as injection wells for remediation. Regenesis to create an 'aquifer filtration system' using colloidal activated carbon (from coconut fiber), that looks like black water, injected in a wall of wells where PFAS adsorbs to the carbon activated aquifer sediment.
The injection fluid Plume Stop and the whole system Plume Shield, which comes with a 10 yr warranty. It works as long as the PFAS source is removed. If there is a decline in source, then plume shield may work ‘forever.’ If the source continues, the operator may have to do more injections.
Reverse osmosis (RO) filtration systems require electricity, and that's why previously they haven't been widely available for home use. Now they are, and they are quite elegant as well. Here's how under sink RO filters work.
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