Welcome to Redox Solutions
Redox Solutions owns and operates a chemical plant in Indianapolis, Indiana, that custom synthesizes treatment reagents, trade-named FerroBlack®, that contain varying molar ratios of iron (Fe), sulfur (S), and aluminum (Al).
Redox’s family of FerroBlack® reagents can be customized to contain:
- Mackinawite-structured iron sulfide (FeS),
- Layered double hydroxides (LDH),
- Excess sulfides (S),
- or polysulfides (SX).
Redox’s reagents meet the definition “Green Chemistry” of both the United States EPA and the ACS (Green Chemistry Institue)
Markets we serve
How Do We Develop Our Reagents?
Each reagent design is based on factors such as:
- Contaminant(s) of Concern
- pH
- ORP
- Site Geology
- Dissolved Oxygen
We perform baseline analytical testing on samples provided by the client. We then synthesize a reagent in our laboratory, perform treatability testing, and run analytical testing to confirm success. This process continues until the appropriate molar ratios of iron (Fe), sulfide (S), and aluminum (Al) are determined to meet the client’s goals.
What Makes Our Reagents So Unique?
- The ability to treat soil and/or groundwater containing various metal contaminants, where each metal may exist in different oxidation states or valencies.
- A highly amorphous mineral structure that makes our regents fifty times more reactive than other iron sulfur-based products like pyrite.
- They are minimally soluble, remain where placed, and do not migrate off-site with groundwater.
- More stable and less oxidation-prone than soluble sulfide-based reagents like NaHS, Na2S, and CaSx.
Methods of Applying our Reagents.
Soil Mixing.
- Bucket Mixing.
- Rotary Head Mixer.
- Caisson Auger.
Chemical Injection.
- Direct Push Injection.
- Sonic Drill Injection.
- Geo-Tapping.
Biotic vs. Abiotic Iron Sulfide
To date, in-situ treatment of heavy metal-impacted soils and/or groundwater through biotic iron sulfide formation has met with varying levels of success. Simply, Redox Solutions’ abiotically synthesized products eliminate the unknown factors of biotic iron sulfide formation.
Why “roll the dice” by assuming the in-situ conditions will be optimal for biotic FeS Formation?
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