Use of zeolites for macronutrients removal from wastewater
Institute of Chemical and Environmental Engineering, Department of Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, Bratislava, 812 37, Slovakia
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Abstract: Natural or synthetic zeolites have unique physical, chemical and structural properties that predetermine their use in many processes, including wastewater treatment. This study presents the results of our preliminary research in the field of nitrogen and phosphorus removal using adsorption and adsorptive ozonation with natural and modified zeolites. Iron-modified zeolite was the most efficient for the removal of ammonium nitrogen by adsorption. Phosphorus removal efficiency using adsorption was relatively low and natural zeolite was not suitable for the phosphorus removal at all. Ozone had no significant impact on the removal efficiency. Regeneration of loaded zeolites with ozone has also been studied. This method was partly efficient but it needs be further examined.
adsorption, nitrogen and phosphorus removal, wastewater treatment, zeolites
Full paper in Portable Document Format: acs_0338.pdf
Acta Chimica Slovaca, Vol. 12, No. 1, 2019, pp. 150—161, DOI: 10.2478/acs-2019-0021