Ammonia removal from aqueous solution by ion exchange using natural zeolite

The ammonia removal from aqueous solution by a natural ion exchange resin w as investigated. The feasibility of natural zeolite usage as ion exchanger to remove ammonia and ion exchange capacity of natural zeolite were determi ned. Natural zeolites taken from Balikesir (Turkey) region were broken into pieces, a diameter of 2 mm, and the effect of different initial ammonia co ncentrations on ion exchange capacity was tested. According to experimental result, ion exchange capacity for 7.5 and 5 mg/l NH4+ initial ammonia conc entration were found to be 4.5 and 1.7 mg NH4+/g resin, respectively.