A comparative study on the use of zeolite-like materials in the removal of heavy metals and ammonium from wastewaters
DOI:
https://doi.org/10.15665/rp.v18i2.2187Abstract
Synthetic (metakaolinite-based Lynde Type A zeolite) and natural (clinoptilolite-rich rhyolite tuft) zeolites were used as heavy metal and ammonium sorbents from artificially polluted solutions. In order to test their potential applications in the remediation of wastewater, efficiency for heavy metal and ammonium uptake using batch reactions at room temperature was investigated. A specific zeolite dose (g) per effluent volume unit (ml) and reaction time was examined to understand the removal mechanisms involved. The efficiency shows that the synthetic zeolites may reach CECs appropriate for their application in industrial wastewater treatment. The heavy metal selectivity of zeotypes was determined as Cu>Zn>Cr>Ni>Pb, and it also showed a high affinity for NH4+.
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