M atashzar - enviromnental science research laboratory , dep . Of environmental science faculty of science zanjan university
A.A zamani - dept. of analytical chemistry faculty of science zanjan university
A.H parizanganeh - enviromnental science research laboratory , dep . Of environmental science faculty of science zanjan university
M.R yaftian - dept. of analytical chemistry faculty of science zanjan university

The objective of thids study was investigate the possibility of using olive cake a byproduct of olive oil production as a low cost adsorbent for removing Pb+2 ions from aqueous solutions. The use of low cost adsorbents such as olive cake in comparison to expensive imported synthetic adsorbents is particularly appropriate for developing countries such as iran . carboxylic acid with hydroxyl group is main component in chemical structure of olive oil. they are also found at low amounts in olive cake this menace proveokes the studies on application of this byproduct for elimination of lead ions.

olive cake , industrial wastewater , low cost adsorbent , biosorption, lead ions