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XylemPatent grant

Evoqua was granted a patent for concentrating PFAS from waste streams.

What happened

In September 2026 Evoqua patented electrochemical water-treatment technology for removing and concentrating PFAS in industrial and environmental cleanup applications.

Source

Abstract

Methods of treating a waste stream containing perfluoroalkyl substances (PFAS) are disclosed. The methods include directing the waste stream to a dilution compartment of an electrochemical separation device, directing a treatment stream to a concentration compartment of the electrochemical separation device, and applying a voltage across the electrodes to produce a dilute stream substantially free of the PFAS and a concentrate stream. At least one of the waste stream and the treatment stream comprises a water miscible organic solvent. Methods of concentrating PFAS from a wastewater are also disclosed. PFAS concentration systems are also disclosed. The systems include a column comprising an ion exchange resin and an electrochemical separation device having a dilution compartment fluidly connected to an outlet of the column. Methods of facilitating treatment of a waste stream containing PFAS are also disclosed.

patents.google.com/patent/US12747172Read the full source

Extracted by Autobound

From the Signal API record
Signal
Patent grant

What this signalsA new patent often shows where a company is putting its R&D budget.

Grant date
Sep 29, 2026
Inventors
4
Patent number
US12747172
Assignee
Evoqua Water Technologies LLC

The full record

From the Signal API record

People

  • Simon P. DukesInventor
  • George GuInventor
  • Savvas HadjikyriacouInventor
  • Yang ChenInventor

Details

Primary CPC class
C02F 1/4693
USPTO assignee
Evoqua Water Technologies LLC
What the invention does
A method that uses an ion-exchange membrane and applied electricity to separate PFAS from contaminated water, producing a cleaner stream and a concentrated waste stream.

Topics and mentions

Tags

  • Intellectual Property
  • Research & Development
  • Chemical Engineering
  • Sustainability

Technologies named

  • PFAS treatment
  • ion-exchange membranes
  • electrochemical separation
  • water treatment

Extraction

Detected
Sep 30, 2026
signal_type
patents-company
signal_subtype
patentGrant

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This page shows a preview. The full patents-company record in the Signal API and MCP can also have these 8 fields. Some fields are empty for some signals.

Company

  • linkedin_urlValue in the API
  • industriesValue in the API
  • employee_count_lowValue in the API
  • employee_count_highValue in the API
  • revenueValue in the API
  • descriptionValue in the API

Signal

  • signal_nameValue in the API
  • associationValue in the API
Show the full JSONThe record on this page and the API request

GET /v1/signals/201fec32-236e-5b8e-893e-01d8e9c59caf returns this record as JSON. POST /v1/companies/enrich returns every signal for xylem.com.

{
  "signal_id": "201fec32-236e-5b8e-893e-01d8e9c59caf",
  "signal_type": "patents-company",
  "signal_subtype": "patentGrant",
  "detected_at": "2026-09-30T16:56:57+00:00",
  "company": {
    "name": "Xylem",
    "domain": "xylem.com"
  },
  "data": {
    "cpc": [
      {
        "code": "C02F 1/4693"
      },
      {
        "code": "B01D 69/02"
      },
      {
        "code": "C02F 1/42"
      },
      {
        "code": "B01D 2325/04"
      },
      {
        "code": "B01D 2325/26"
      }
    ],
    "tags": [
      "Intellectual Property",
      "Research & Development",
      "Chemical Engineering",
      "Sustainability"
    ],
    "detail": "In September 2026 Evoqua patented electrochemical water-treatment technology for removing and concentrating PFAS in industrial and environmental cleanup applications.",
    "summary": "Evoqua was granted a patent for concentrating PFAS from waste streams.",
    "event_at": "2026-09-29",
    "inventors": [
      {
        "name": "Simon P. Dukes",
        "status": "unresolved",
        "is_primary": true
      },
      {
        "name": "George Gu",
        "status": "resolved",
        "is_primary": false,
        "linkedin_url": "https://www.linkedin.com/in/george-gu-131254b2"
      },
      {
        "name": "Savvas Hadjikyriacou",
        "status": "resolved",
        "is_primary": false,
        "linkedin_url": "https://www.linkedin.com/in/savvashadjikyriacou"
      },
      {
        "name": "Yang Chen",
        "status": "unresolved",
        "is_primary": false
      }
    ],
    "event_kind": "grant_date",
    "grant_date": "2026-09-29",
    "source_url": "https://patents.google.com/patent/US12747172",
    "cpc_primary": {
      "code": "C02F 1/4693"
    },
    "patent_title": "Ion exchange membrane composition and methods for the concentration of perfluoroalkyl substances",
    "patent_number": "US12747172",
    "uspto_assignee": "Evoqua Water Technologies LLC",
    "patent_abstract": "Methods of treating a waste stream containing perfluoroalkyl substances (PFAS) are disclosed. The methods include directing the waste stream to a dilution compartment of an electrochemical separation device, directing a treatment stream to a concentration compartment of the electrochemical separation device, and applying a voltage across the electrodes to produce a dilute stream substantially free of the PFAS and a concentrate stream. At least one of the waste stream and the treatment stream comprises a water miscible organic solvent. Methods of concentrating PFAS from a wastewater are also disclosed. PFAS concentration systems are also disclosed. The systems include a column comprising an ion exchange resin and an electrochemical separation device having a dilution compartment fluidly connected to an outlet of the column. Methods of facilitating treatment of a waste stream containing PFAS are also disclosed.",
    "precision_class": "structural",
    "invention_explanation": "A method that uses an ion-exchange membrane and applied electricity to separate PFAS from contaminated water, producing a cleaner stream and a concentrated waste stream.",
    "technologies_mentioned": [
      "PFAS treatment",
      "ion-exchange membranes",
      "electrochemical separation",
      "water treatment"
    ]
  }
}

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