The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 17, 2024
Filed:
Jun. 17, 2021
Arizona Board of Regents on Behalf of Arizona State University, Scottsdale, AZ (US);
Florida State University Research Foundation, Inc., Tallahassee, FL (US);
Youneng Tang, Tallahasee, FL (US);
Bruce Rittmann, Tempe, AZ (US);
Chen Zhou, Chandler, AZ (US);
Yihao Luo, Phoenix, AZ (US);
Rosa Krajmalnik-Brown, Chandler, AZ (US);
Arizona Board of Regents on Behalf of Arizona State University, Scottsdale, AZ (US);
Florida State University Research Foundation, Inc., Tallahassee, FL (US);
Abstract
Disclosed herein are systems and methods for removing trichloroethane (TCA), trichloroethene (TCE), and 1,4-dioxane (1,4-D) from contaminated liquids. The system and methods rely on catalyst reduction of TCA and TCE, where the reduced products are then degraded by microorganisms The system comprises a first reactor comprising a catalyst film of precious metal nanoparticles deposited on a first nonporous membrane and a second reactor comprising a biofilm of microorganisms that are capable of degrading ethane and 1,4-D deposited on a second nonporous membrane. The first reactor further comprises a hydrogen gas source, wherein the hydrogen gas source delivers hydrogen to the gas-phase side of the first nonporous membrane, and the catalyst film is deposited on the liquid-phase side. The second reactor further comprises an oxygen gas source, wherein the oxygen gas source delivers oxygen to the gas-phase side of the second non-porous membrane, and the biofilm is deposited on the liquid-phase side.