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Zero valent iron systems and methods for treatment of contaminated wastewater
(United States. Patent and Trademark Office, 2019-06-25)
Hybrid zero-valent iron systems and methods for treating a fluid containing a contaminant that removes or reduces the concentration of contaminants, such as toxic metals, metalloids, oxyanions, and dissolved silica.
Selenium removal using aluminum salt at conditioning and reaction stages to activate zero-valent iron (ZVI) in pironox process
(United States. Patent and Trademark Office, 2019-08-13)
A system containing a reactor vessel including zero valent iron media, a source of a conditioning additive, a source of a reaction additive, and a process control subsystem is disclosed. A method for reducing a concentration ...
Polysaccharide agents and methods of their use for removing solids from water
(United States. Patent and Trademark Office, 2019-10-15)
Polysaccharide agents for removing solids from an aqueous suspension and methods for using the polysaccharide agents to remove solids from an aqueous suspension.