Zeolite for Drinking Water Filtration

KMI Zeolite is a powerful filtration medium with a high surface area and strong cation exchange capacity with selectivity for ammonia, heavy metals, and other pollutants.


The world faces a water crisis due to a lack of clean drinking water. A significant volume of wastewater has been produced from industrial processes and is discharged into water systems, bringing pollutants like heavy metals and oil into contact with freshwater sources. To combat this problem, scientists have examined various zeolite applications in water purification programs because of its ability to absorb and adsorb ions and organics in wastewater.

Studies conducted around the globe demonstrate that clinoptilolite provides significant benefits to the processes of treating and purifying drinking water. In Denver, CO, the mineral reduced the ammonia content of sewage effluent down to potable standards. In Logan, UT, adding a layer of crushed zeolite to a slow-sand filtration process for drinking water tripled the filtration rate. Clinoptilolite beads are used regularly to upgrade river water to potable standards in Ryazan, Russia, and Uzhgorod, Ukraine; the beads remove lead through ion exchange and provide an inexpensive means of purifying drinking water.

A study by Turan and Celik examined the impact of clinoptilolite on ammonia removal from reservoir water. Clinoptilolite samples were regenerated three times during the experiment to determine if adsorption capabilities decreased over time. The results indicate that twice-regenerated clinoptilolite with 30 g/l NaCL solution at pH 11.5 activated the mineral and increased the ion-exchanged performance. Overall adsorption performance did not decrease after the mineral was regenerated. Researchers concluded that clinoptilolite has the potential to remove ammonia from contaminated reservoir water.


Regenerability of Turkish clinoptilolite for use in ammonia removal from drinking water - M. Turan and M. S. Celik

Removal of arsenic from drinking water using modified natural zeolite - Meltem Bilici Baskan

Natural zeolites used in water remediation - Peter J. Reeve, et al.


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Contact us to learn more about how zeolite may work for your contaminated water filtration needs.