Effect of Activated Carbon Produced from Pine Cones in Reducing of Irrigation Water Salinity Parameters

Document Type : Research Paper


Isfahan University of Technology


The irrigation water salinity is one of the important factors in soil salinization, the decrease in soil permeability and reduction of yields. Hence, finding modern and low cost methods to reduce irrigation water salinity is inevitable. The aim of this study is to produce activated carbon from pine cones and the evaluation of its application to adsorb the ions that cause salinity in the irrigation water. Adsorption experiments were conducted in a batch system and the parameters affecting the adsorption including contact time, initial concentration of salinity ions, adsorption isotherm and kinetics, and the effect of adsorption on irrigation water quality parameters including EC, TDS, TH and SAR, were studied. The research results showed that the maximum reduction of salinity in the electrical conductivity of 5.48, 10.41 and 20.4 (dS/m) were 7, 14.3 and 21.5 %, respectively. Adsorption Kinetic and isotherm of salinity ions followed the pseudo-second order reaction and Freundlich isotherm, respectively. The maximum reduction in TH and SAR values in irrigation water was observed in the salimity of 20.4 dS/m, that were reduced by 14.4 and 14.8 percents, respectively.


Main Subjects

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