AMMONIUM REMOVAL BY CA-FORM ZEOLITE FROM MUNICIPAL WASTEWATER

Ammonium removal by modified zeolite, Ca-form zeolite, was examined by batch-type methods. The adsorption of ammonium on Ca-form zeolite was exothermic process. The saturation adsorption capacity of ammonium on Ca-form zeolite was 46.29mg/g. After ten times adsorption-desorption- readsorption cycles the standard deviation of Ca-form zeolite was 6.34% and 6.59% by NaCl and HCl regenerated, respectively. The better effect of ammonium removal from municipal wastewater showed that the Ca-form zeolite would be a practical and cost effective adsorbent in wastewater treatment.