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Lewatit® FO 36

Lewatit® FO 36 is a macroporous, monodispersed, weakly basic, polystyrene-based ion exchange resin for the selective adsorption of oxoanions, such as arsenate or arsenite ions. It is doped with a nano-scale film of iron oxide covering the inner surfaces of the pores of the polymer bead. Target oxoanions are bonded by a specific, reversible reaction involving hydroxy-groups on the iron oxide surface.

Lewatit® FO 36 is especially suitable for use in the following applications:

In the purification of potable water arsenic can be removed down to rest concentrations significantly lower than 10 µ g/l which is the maximum contaminant level set in several countries. Lewatit® FO 36 is also capable of adsorbing other species such as HPO 4 2-, HSbO4 2-, SCN- etc.


Business Unit
Liquid Purification Technologies


Properties and benefits

  • Arsenic removal from drinking water
  • Arsenic removal from ground water (ground water remediation)
  • Arsenic removal from process solutions even in presence of high contents of neutral salts .


Areas of Applications

  • Potable Water Treatment
  • Industrial Water Treatment
  • Waste Water Treatment

How to use the product

When using Lewatit® FO 36 to treat potable water, special care should be paid at the onset. Please refer to the recommended start-up-conditions contained in this data sheet.

After pre-treatment as per instructions, Lewatit® FO 36 is in compliance with the European Resolution ResAP (2004)3  


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Ion exchange and reverse osmosis: a perfect combination

With 80 years of experience in water treatment and purification, the specialty chemicals company LANXESS with its Liquid Purification Technologies business unit has a solid basis to appear at this year’s IFAT in Munich on May 14-18, 2018.



Prakash Shanmugam

Prakash Shanmugam
Head of Sales Indian Subcontinent

LANXESS India Pvt. Ltd.

LANXESS House, Plot no: A 162-164

Road No 27, MIDC, Wagle Estate

Thane (W) - 400 604, Maharashtra

India, IN

Phone: +91 22 2587 1220

Fax: +91 22 2582 5742

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