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US 11,447,405 B2Granted
Apparatus to remove harmful chemical species from industrial wastewater using iron-based products
AssigneeUniversity of Kentucky Research Foundation
InventorsXin Gao, Kunlei Liu, James R. Landon, Jesse Thompson, Ayokunle O. Omosebi, Keemia Abad, Zilong Ma
Life of this patent
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Abstract
A method and apparatus are provided for removing EPA regulated chemical species from industrial wastewater using green rust. The apparatus includes a green rust generator having an iron anode and a carbon cathode.
Claims10
A method of treating industrial wastewater, comprising:
- generating green rust by iron electrolysis using an iron anode and a carbon cathode;
- feeding air to the carbon cathode to support generation of at least one of hydrogen peroxide and hypochlorite at the carbon cathode to lower the overall energy required to generate the green rust;
- mixing the green rust with the industrial wastewater to react selenium, arsenic and nitrite/nitrate species in the industrial wastewater with the green rust;
- and
- solidifying and separating the selenium, arsenic and nitrite/nitrate species from the treated industrial wastewater.
2 more elements
A method of generating green rust by iron electrolysis, comprising:
- using an iron anode and a carbon cathode;
- passing a current across the iron anode and the carbon cathode;
- and
- feeding air to the carbon cathode to support the generation of at least one of the hydrogen peroxide and hypochlorite;
- and
- generating at least one of hydrogen peroxide and hypochlorite at the carbon cathode and thereby lowering overall energy required to generate the green rust.
3 more elements
Dependencies are inferred from the claim text.