Lanxess Tackles Arsenic In Water | Chemical & Engineering News
Volume 86 Issue 40 | p. 20 | Concentrates
Issue Date: October 6, 2008

Lanxess Tackles Arsenic In Water

Department: Business
Credit: Lanxess

Lanxess has developed a hybrid ion-exchange resin that removes arsenic from drinking water. Lanxess says the adsorber combines a polymeric anion-exchange resin and an iron oxide with a goethite structure. The iron oxide is distributed in the pores of the weakly basic ion-exchange resin in a layer a few nanometers thick. The highly reactive iron oxide layer can selectively adsorb the arsenic, which has a particularly high affinity to the iron oxide surface.

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