Nicholas J Johnson

US Patent:

20230110561, Apr 13, 2023

Filed:

Oct 11, 2022

Appl. No.:

18/045493

Inventors:

- Houston TX, US
Poonam R. Kulkarni - Houston TX, US
Hassan Javed - Houston TX, US
Nicholas W. Johnson - Houston TX, US
Stephen D. Richardson - Houston TX, US

International Classification:

C02F 1/58
C02F 1/24
C02F 1/28

Abstract:

A method for the decontamination of water containing one or more PFAS, having the steps of generating colloidal gas aphrons (CGAs) by mixing a gas, water, and one or more surfactants together with high shear forces, introducing the CGAs and a PFAS-containing water in an enclosed space where the CGAs move upwards through the water due to their inherent buoyancy, allowing the plurality of CGAs to extract PFAS from the water, and separating the PFAS-containing CGAs from the surface of the water in the enclosed space for further treatment or disposal, leaving the water with lower PFAS concentrations in the vessel. The aphrons may be anionic or cationic and created by mixing speeds or surfactant concentration, and treatment may be with gas bubbles to remove PFAS from water gas bubbles or destruction of PFAS by plasma reactor or deployed in situ through wells into geologic ground formations.

US Patent:

20230063935, Mar 2, 2023

Filed:

Apr 15, 2022

Appl. No.:

17/721529

Inventors:

- Houston TX, US
Poonam R. Kulkarni - Houston TX, US
Hassan Javed - Houston TX, US
Nicholas W. Johnson - Houston TX, US
Stephen D. Richardson - Houston TX, US

International Classification:

C02F 1/58
C02F 1/24
C02F 1/28

Abstract:

A method for the decontamination of water containing one or more PFAS, having the steps of generating colloidal gas aphrons (CGAs) by mixing a gas, water, and one or more surfactants together with high shear forces, introducing the CGAs and a PFAS-containing water in an enclosed space where the CGAs move upwards through the water due to their inherent buoyancy, allowing the plurality of CGAs to extract PFAS from the water, and separating the PFAS-containing CGAs from the surface of the water in the enclosed space for further treatment or disposal, leaving the water with lower PFAS concentrations in the vessel. The aphrons may be anionic or cationic and created by mixing speeds or surfactant concentration, and treatment may be with gas bubbles to remove PFAS from water gas bubbles or destruction of PFAS by plasma reactor or deployed in situ through wells into geologic ground formations.

Address:

827 Country Ln, Houston, TX 77024

Phone:

7135013748

VIN:

1FT7W2BT7CEA99908

Make:

FORD

Model:

F-250 SUPER DUTY

Year:

2012