Trends in Applied Sciences Research1819-35792151-7908Science International10.3923/tasr.2008.14.24GhazyS.E. El-MorsyS.M. 1200831Ion molecular and colloidal inorganic particles representing both pollutants and sources of useful substances require the separation from aqueous systems by modern techniques that also permit their removal and recovery. Ion flotation and precipitate flotation are considered as separation methods with wide application, especially for the small concentration ranges of noxious components, indicating high environmental and economical performances. The present paper presents the results of a research study concerning Al(III) and Cu(II) separation from aqueous systems by the precipitate flotation method using carbonate as precipitant agent and oleic acid as surfactant. The parameters, influencing the flotation process, namely: solution pH, metal ion, surfactant and carbonate concentrations, ionic strength, temperature and foreign ions were examined. The procedure was successfully applied to recover Al3+ and Cu2+ ions from natural water samples.]]>Bensen, R.L., P.J. Worsfold and F.W. Sweeting, 1990238177182Birchall, J.D., C. Exley, J.S. Chappell and M.J. Phillips, 1989338146148Blocher, C., J. Dorda, V. Mavrov, H. Chmiel, N.K. Lazaridis and K.A. Matis, 20033740184026Campbell, P.G.C., M. Bisson, R. Bougie, A. Tessier and J.P. Villeneuve, 19835522462255Capponi, F., M. Sartori, M.L. Souza and J. Rubio, 200679167173Chubar, N., J.R. Carvalho and M.J.N. Correia, 20032305765Desccotes, J., 1988Downs, A.J., 19931st Edn.,Fasal, M. and S. Hasnain, 20043610617Filippov, L.O., R. Joussemet and R. Houot, 2000133751Flaten, T.,200155187196Gensemer, R.W., 1991Asterionella ralfsii var. Americana.]]>36123131Ghazy, S.E. and M.A. Kabil, 199467474478Ghazy, S.E., 199530933947Ghazy, S.E., S.E. Samra, A.M. Mahdy and S.M. El-Morsy, 20042512211231Ghazy, S.E., I.A. Mahmoud and A.H. Ragab, 2006275361Ghazy, S.E., S.E. Samra, A.M. Mahdy and S.M. El-Morsy, 200622377382Havens, K.E., 19924923922398Igwe, J.C. and A.A. Abia,2006511671179Kemmer, F.N., 19882nd Edn.,Khalifa, M.E., M.A. Akl and S.E. Ghazy, 200149664668Klassen, V.I. and V.A. Mokrosov, 1969Lazaridis, N.K., E.N. Peleka, T.H.D. Karapantsios and K.A. Matis, 200474149156Marczenko, Z., 1986pp: 132pp: 132Miu, A.C. and O. Benga, 200610179201Monteagudo, J.M. and M.J. Ortiz, 200075767772Parker, D.R., T.B. Kinraide and L.W. Zelazny, 198953789796Rubin, A.J. and J.D. Johnson, 196739298302Seki, K., N. Satio and M. Aoyama, 199731441447Sorensen, E.M.B.,1991Srinivasan, P.T., T. Viraraghavan and K.S. Subramanian, 1999254756Stoica, L., M. Dinculescu and C.G. Plapcianu, 19983230213030Vogel, A.I., 19774th Edn.,