The capacity of the naturally occurring zeolite clinoptilolite has been determined for the ions NH4+, K+, Ca2+ and Mg2+ in the range of total concentrations 0·01 n-0·05 n. The results show that the effective capacity of the zeolite varies according to the ionic species involved in the exchange. Maximum ion uptake was achieved for the exchanges Na+ NH4+ and Na+ K+ and the measured capacities for NH4+ and K+ were significantly greater than those measured for Ca2+ and Mg2+. The data provide a useful pointer to the use of clinoptilolite as a water treatment medium in recirculating aquaculture systems. © 1987.
|Number of pages||12|
|Publication status||Published - 1987|