The present paper describes the manufacturing of an acid insoluble zirconium phosphate membrane supported by ceramics. The manufacturing process is based on precipitation reaction of zirconium phosphate on the outer surface and in the interstices of a ceramic tube of pore size 10 mu m by means of electrodialysis. The main electrical properties of the membrane are given and its electrodialysis process is assessed for alkali metals, namely Li, Na, K and Cs. Separation of Ca from Sr in the presence of a chelating agent, EDTA, was studied using the developed membrane. Results showed that EDTA is a good complexing agent to retain all Sr in the anode chamber, feed solution, while Cs migrates to the cathode chamber. It was found that the order of cationic flux of alkali metals is Cs>KsNa>Li and the membrane is more selective to cations of lower valence, i.e. the membrane selectivity increases in the order Cs>Sr>La.