Natural zeolites, specifically heulandite, were tested for their ability to adsorb contaminants in wastewater, focusing on cation and anion leaching after passing through filters.
A factorial treatment design evaluated eight different combinations of zeolite amounts, nanoparticles, and magnet use, utilizing 16 filters and measuring cations and anions in treated water.
Results showed that while the zeolite effectively leached several cations (except for calcium) and anions from municipal wastewater, it is recommended for agricultural and animal use rather than for drinking water applications.