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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, 2021-12-28)
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 ...
Mixed aluminum (III) and iron (II) salt solution for enhancing the hybrid zero-valent iron media system reactivity for treating metal contaminated wastewater
(United States. Patent and Trademark Office, 2021-05-04)
Methods for reducing the concentration of one or more contaminants in water using zero-valent iron media. In the method, a mixed aluminum (III) and iron (II) salt solution is added to water containing one or more contaminants ...