Redox Solutions provides custom-synthesized FerroBlack® reagents, amorphous iron sulfide compounds designed for environmental remediation and coal-fired power plant emissions control. These reagents effectively immobilize metal contaminants in soil and groundwater and reduce mercury emissions in wet flue gas desulfurization systems.
Funding
Funding not disclosed
Founders
Product
Problem
Environmental remediation projects often face challenges with metal contaminants in soil and groundwater, requiring effective and stable treatment solutions. Coal-fired power plants need to manage mercury emissions and dissolved metals in wet flue gas desulfurization (FGD) systems to comply with environmental regulations.
Solution
Redox Solutions specializes in the custom synthesis of proprietary FerroBlack® reagents, amorphous iron sulfide compounds engineered for environmental remediation and coal-fired power generation applications. These reagents effectively immobilize metal contaminants in soil and groundwater by forming insoluble precipitates, offering superior reactivity and stability compared to conventional iron-sulfur products. For coal-fired power plants, FerroBlack® reagents serve as a wet scrubber additive to control mercury emissions, manage oxidation-reduction potential (ORP), and reduce dissolved metals in scrubber effluent. The development process involves detailed site-specific analysis and treatability testing to tailor reagent composition, ensuring optimal performance and client-defined remediation goals are met.
Target Audience
Primary customers include environmental consulting firms, remediation contractors, and coal-fired power plant operators seeking advanced chemical treatment solutions for contaminated sites and emissions control.
Features
- Custom synthesis of FerroBlack® reagents with tailored molar ratios of iron (Fe), sulfur (S), and aluminum (Al).
- Amorphous mineral structure providing significantly higher reactivity than crystalline iron sulfides.
- Low solubility and minimal migration in soil and groundwater environments.
- Enhanced stability and reduced oxidation-proneness compared to soluble sulfide reagents.
- Effective treatment of diverse metal contaminants across various oxidation states.
- Application methods include soil mixing (bucket, rotary head, caisson auger) and chemical injection (direct push, sonic drill, geo-tapping).
- Wet scrubber additive for coal-fired power plants, achieving up to 95% reduction in stack mercury emissions.
- Facilitates MATS compliance during unit start-up, SCR bypass, and ORP excursions.
- Effective over a broad pH (4.5-7.0) and ORP (-200 to +600mV) range.
- Reduces dissolved mercury, selenite, and arsenic in scrubber slurry blowdown.
- Controls ORP in wet FGD units to mitigate mercury re-emission.
- Achieves over 50% reduction in bromide concentrations in scrubber effluent.
- Abiotically synthesized products eliminate variability associated with biotic iron sulfide formation.