LANXESS breakthrough resin technology: industrial wastewater PFAS removal rate of 99.9%

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The highly selective ion exchange resin technology introduced by LANXESS successfully reduced the PFAS (perfluorinated and polyfluoroalkyl substances) content in industrial wastewater by 99.9 percent in a field test at a Chemours Dordrecht plant in the Netherlands.

The highly selective ion exchange resin technology introduced by LANXESS successfully reduced the PFAS (perfluorinated and polyfluoroalkyl substances) content in industrial wastewater by 99.9 in a field test at a Chemours Dordrecht plant in the Netherlands, providing an efficient solution for the treatment of short-chain/ultra-short-chain PFAS pollution, which is difficult to overcome by traditional methods.

Technology Core and Breakthrough

LANXESS's core product Lewatit MDS TP 108 resin, which will be officially launched in 2024. It uses dispersed resin beads with a diameter of only 1/3 of that of traditional alternatives, achieving higher adsorption capacity, longer service life and faster exchange kinetics. It can maintain stable performance even under high flow conditions.
PFAS are called "permanent chemicals" and are extremely difficult to degrade. The short-chain variants (containing 2-7 carbon atoms) are especially difficult to capture-they easily penetrate the activated carbon system and bind to conventional ion exchange resins in a competitive anion environment. Weak. The Lewatit MDS TP 108 is designed to address this pain point by efficiently adsorbing the most difficult short-chain compounds.

Field test and treatment process

In the three-stage purification system of the Chemours Netherlands B.V. plant in the Netherlands, this technology has achieved a removal of more than 99.9% of fluorine-containing organic compounds:
  1. Reverse osmosis: Generation of PFAS-depleted permeate and concentrated waste streams
  2. activated carbon treatment: Capture long-chain PFAS to avoid their pre-saturated resin
  3. resin adsorption: Accurate removal of short-chain PFAS through three Lewatit MDS TP 108 containers (1 primary filter element +2 polished filters)
Designed and delivered by Logisticon Water Treatment Company, the system has been in continuous operation in Chemours since mid -2025 and has become a key link in reducing emissions from fluoroorganic compounds sites. The used resin material will be incinerated at high temperature to destroy PFAS and achieve closed loop treatment.
Björn Dinges, manager of applied technology at LANXESS, said: "This set of customized ion exchange resins has removed more than 99.9 percent of fluorine-containing organic compounds in the wastewater, providing a breakthrough solution for industrial wastewater treatment."

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