Author(s)

L. Weatherley, N. Miladinovic & J. Lopez-Ruiz

Abstract

Introduction of some new materials for combined biological and ion-exchange wastewater treatment for ammonia removal L. ~ e a t h e r l e ~ ' , N. ~iladinovic' & J . L O ~ ~ Z - R U ~ ~ '~e~artment of Chemical and Process Engineering, University of Canterbury, New Zealand Research Group on Zelite Aquaculture, Centro Andaluz Superior de Estudios Marinos (CASEW, University of Chdiz, Spain Abstract Ammonia is a water pollutant that causes serious problems in terrestrial and saline receiving waters. The classical solution to the problem of ammonia removal is biological waste treatment that can be easily inhibited by toxic shock, pH change, low dissolved oxygen concentration and low temperatures. Ionexchange materials have been used as an alternative to the biological process. However, chemical regeneration of ion-exchangers can be expensive and if ammonia concentration in the influent drops, desorption may occur resulting in increased ammonia concentration in the effluent. When ion-exchange and b

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