Lanxess equips De Watergroep modular plant with ion exchange resin for PFAS removal

Specialty chemicals company Lanxess has equipped De Watergroep’s first mobile plant for the removal of PFAS from water with its Lewatit TP 108 DW ion exchange resin.

A mobile, modular system for PFAS removal from water, with the Lewatit TP 108 DW ion exchange resin from Lanxess is used for filtering.
A mobile, modular system for PFAS removal from water, with the Lewatit TP 108 DW ion exchange resin from Lanxess is used for filtering. - Photo: De Watergroep.

The fully modular water treatment unit is located in Belgium’s Brussels region, and can purify up to 190,000 liters of drinking water per hour.

The Belgian water supply company De Watergroep has been operating the containerized water treatment plant on site since May 2024. It will be used for at least two years, after which the plan is to switch to alternative water sources with lower PFAS levels. The objective is to permanently reduce the PFAS contamination of drinking water in Flanders to below 50 ppt and thus increase the quality of the water.

“Together with our customer De Watergroup, our Lewatit TP 108 DW ion exchange resin has been installed to remove PFAS from drinking water. The system meets the latest standards in drinking water treatment technology and achieves outstandingly low levels of PFAS in the filter effluent compared to other technologies. Modular systems for drinking water treatment are also a solution for the treatment of drinking water worldwide,” said Bjoern Dinges, application technology manager at Lanxess.

The system is installed directly in the drinking water pipe. With a PFAS concentration of 80 ppt, the water supplied is still below the limits. To achieve a long service life, pre-filtration is used. The chlorine is removed before the IEX filters, ie the ion exchangers, and is re-dosed after it has passed through. Lanxess will support the project for two years and continuously record the process and performance data.