Arsenic in Water

Arsenic is a naturally occurring contaminant found in volcanic rocks and in soil.
Rainfall or other water flows can dissolve arsenic and disperse it in anionic form in groundwater or aquifers.

Arsenic in Groundwater: what does the WHO say?

The World Health Organization (WHO) has established a maximum tolerance limit of Arsenic in drinking water of 10 μg/L, as higher arsenic levels may result in serious health risks, causing diseases such as cancer.

Natural zeolite is a cation exchanger, so it has no affinity for anionic species.
If chemically modified, the nature of zeolite can be changed and made selective to anionic metalloid species such as arsenic.

At ZEOCEL ITALIA, we have developed a product based on a chemically modified natural zeolite, Zeowater ZI, which can remove arsenic by chemical-physical adsorption and precipitation mechanisms.

This product eliminates arsenic from solution after just 10 minutes of contact, making water usable for human consumption.


Arsenic content in the original water sample, after treatment with natural zeolite, and after treatment with chemically modified natural zeolite (Zeowater ZI).
The red line is the ximum tolerance limit of Arsenic in drinking water (10 μg/L).


Check out our modified zeolite Zeowater ZI!