System and method for removing per- and polyfluoroalkyl substances from ground water
AssigneeSouth Central Connecticut Regional Water Authority
InventorsJames M. Hill, Jesse F. Culbertson, Sherwin Gormly
Life of this patent
Estimating the term…
Abstract
A system for decontamination of ground water containing one or more per- and polyfluoroalkyl substances (PFAS) at water treatment plants includes a powder activated carbon (PAC) module in fluid communication with a source of water containing the PFAS, wherein the PAC module comprises at least one bag filter pre-filled with the powder activated carbon, and a filter ripening module positioned downstream of the PAC module and configured to capture excess color and turbidity, wherein the powder activated carbon has a particle size of at least about 1 micron.
Claims20
A system for decontamination of ground water containing one or more per- and polyfluoroalkyl substances (PFAS) at water treatment plants, comprising:
- a powder activated carbon (PAC) module in fluid communication with a source of water containing the PFAS, wherein the PAC module comprises at least one bag filter pre-loaded with the powder activated carbon in a range of about 10% to about 60% of a total bag filter volume;
- wherein the powder activated carbon has a particle size of at least about 1 micron.
A system for decontamination of water containing one or more per- and polyfluoroalkyl substances (PFAS), comprising:
- a powder activated carbon (PAC) module in fluid communication with a source water, wherein the PAC module is configured to supply a powder activated carbon to water, wherein the powder activated carbon has a particle size of about 1 micron or more, and
- a filter ripening module positioned downstream of the PAC module and configured to capture excess color and turbidity.
A method for decontamination of ground water containing one or more per- and polyfluoroalkyl substances (PFAS), comprising the steps of:
- supplying water from a ground water source via one or more pump systems,
- providing at least one bag filter pre-loaded with a powder activated carbon, wherein the powder activated carbon has a particle size of about 1 micron or more,
- passing water through the at least one bag filter to capture the PFAS, and
- supplying a stream of water free of the PFAS for further processing.
Dependencies are inferred from the claim text.