Pakistan Journal of Biological Sciences1028-88801812-5735Asian Network for Scientific Information10.3923/pjbs.2010.551.555DehghaniM. Binaee HaghighiA. ZamanianZ. 1120101311The aim of this research is to study the feasibility of removing nitrates from water by means of anion exchange. In the purposed work an attempt was made to utilize strong basic anion resin to remove nitrate in the presence of competitive anion. Amberjet Cl¯ 4200 ion exchange resin was used in a batch scale. The fixation rate of nitrate without the presences of any competitive anion was almost constant (94.60-96.43) when the nitrate concentrations are in the range of 100-150 mg L-1. The fixation rate of nitrate in the presences of two competitive anions (sulphate and chloride) was reduced to 82% when the concentration of nitrate was 100 mg L-1.]]>Assubaie, F.N.,20047508513Al-Harbi, O.A., G. Hussain, M.M. Khan, M.A. Moallim and I.A. Al-Sagaby,20069260269Bae, B., Y. Jung, W. Han and H. Shin,20023633303340Boumediene, M. and D. Achour,2004168187194Eaton, A.D., L.S. Clesceri, E.W. Rice and A.E. Greenberg,200521st Edn.,pp: 4-121pp: 4-121Kim, J. and M.M., Benjamin,20043820532062Lohumi, N., S. Goasin, A. Jain, V.K. Gupta and K.K. Verma,2004505231237Matos, C.T., A.M. Sequeira, S. Velizrov, L.G. Crespo and M.A.M. Reis,2009166428434Pintar, A., J. Batista and J. Levec,20015615511559Samatya, S., N. Kabay, U. Yuksel, M. Arda and M. Yuksel,20066612061214Terry, M.A.,200926691696Van der Hoek, J.P., P.J.M. van der Ven and A. Klapwlik,198822679684De Heredia, B.J., J.R. Dominguez, Y. Cano and I. Jimenez,200625260316035Guter, G.A.,19971997pp: 61-113pp: 61-113