公开(公告)号：US20250059071A1

公开(公告)日：2025-02-20

申请号：US18562416

申请日：2022-05-20

Applicant: Evoqua Water Technologies LLC

Inventor： Joshua Griffis ,  Simon P. Dukes ,  Ben Satterfield ,  Yang Chen ,  George Y. Gu

IPC: C02F1/467 ,  C02F1/00 ,  C02F1/461 ,  C02F1/78 ,  C02F101/34

Abstract: Systems for treating water are disclosed. The system includes an ozonation subsystem including a source of ozone configured to dissolve ozone into water from a source of water to produce ozonated water. The system further includes an electrochemical cell co-located with the ozonation subsystem having an inlet connectable to a source of electrolyte and an outlet. The electrochemical cell is configured to produce hydrogen peroxide from electrolyte from the source of electrolyte. The system additionally includes a mixing zone configured to receive the ozonated water, to receive the hydrogen peroxide from the outlet of the electrochemical cell, and to mix the ozonated water and hydrogen peroxide to form peroxone. Systems and methods of treating water, such as by selectively removing one or more emergent compounds from contaminated water, using the system are also disclosed.

公开(公告)号：US20240317616A1

公开(公告)日：2024-09-26

申请号：US18689667

申请日：2022-08-30

Applicant: EVOQUA WATER TECHNOLOGIES LLC

Inventor： Simon Paul Dukes ,  Joshua W. Griffis ,  Yang Chen ,  George Y. Gu

IPC: C02F1/48 ,  C02F1/24

CPC classification number: C02F1/48 ,  C02F1/24 ,  C02F2303/26 ,  C02F2305/023

Abstract: Systems and methods for treating water containing PFAS are disclosed. Plasma activated excited gas is encapsulated with nanobubbles in water comprising PFAS to be treated. Liquid-phase reaction of the PFAS with the encapsulated plasma activated excited gas at the air-water interface of the nanobubbles is promoted. The PFAS can be concentrated upstream of the plasma reactor. A foam fractionation process may be used in conjunction with the plasma reactor to facilitate PFAS removal.

公开(公告)号：US20230331595A1

公开(公告)日：2023-10-19

申请号：US17270852

申请日：2019-08-23

Applicant: Evoqua Water Technologies LLC

Inventor： Yang Chen ,  Simon P. Dukes

IPC: C02F1/467 ,  C02F1/00 ,  C02F1/461

CPC classification number: C02F1/4672 ,  C02F1/008 ,  C02F1/46109 ,  C02F2101/36

Abstract: Electrochemical treatment for the removal of poly- and perfluorolkyl substances from water is disclosed. An electrochemical cell may include a Magnéli phase titanium oxide electrode.