Removal of refractory organic matter from water

The integration of an advanced oxidation system with filtration methods effectively addresses inefficiencies in PFAS removal by enhancing selectivity and reducing energy consumption, achieving efficient and cost-effective PFAS removal.

WO2026153251A1PCT designated stage Publication Date: 2026-07-23SHE AQUA TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
SHE AQUA TECHNOLOGY CO LTD
Filing Date
2026-01-12
Publication Date
2026-07-23

AI Technical Summary

Technical Problem

Current technologies for removing refractory organic matter, particularly perfluoroalkyl and polyfluoroalkyl substances (PFAS), are inefficient, energy-intensive, and face challenges with selectivity, secondary contamination, and high operational costs, especially with varying wastewater compositions.

Method used

An advanced oxidation system combined with a filtration system, utilizing processes like Fenton reagent oxidation, ozone, UV irradiation, and metal oxide catalysts, to enhance the removal efficiency of PFAS by pre-treating the water to reduce competing contaminants and minimize biofouling, followed by filtration through GAC, IX, or reverse osmosis.

Benefits of technology

The combined system achieves higher efficiency and cost-effectiveness in removing PFAS, reducing energy consumption and minimizing sludge generation, while meeting stringent regulatory limits.

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Abstract

An apparatus to remove refractory organic matter from a water supply. The apparatus comprises an advanced oxidation system using an advanced oxidation process to remove contaminants from the water supply, and a filtration system to remove refractory organic matter from the water supply at an efficiency rate, wherein the advanced oxidation system includes removing contaminants that would reduce the efficiency rate. An associated method of removing refractory organic matter from a water supply is also provided.
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