Author(s): Zahra Mardani; Kumars Ebrahimi; Ali Jafari
Linked Author(s):
Keywords: Dsorption capacity; EC metre; Salinity; Soil weight
Abstract: In many parts of the Planet Earth, especially the arid and semi-arid areas, which account for one third of the Planet’s surface, salinity has caused numerous problems in the production of goods. The purpose of this research is to investigate the NaCl’s adsorption to and desorption from saturated porous media of sand. The NaCl solutions with the concentrations of 2.5, 5 and 10 g/L, and three types of soil textures with the weights of 50,100 and 200 g were utilized as samples of the experiment. The samples were placed in capped containers and the containers were located next to one another. The salinity of the solutions was measured using an EC metre at 1,2, 4,7 and 24 hours from the beginning of the experiment. The results of the experiment indicated that in the soils with less weight, the adsorption of sodium ions were more, and as soil weight increased, the adsorption of ions decreased, and finally the adsorption phenomenon was departed. Over time, the process of adsorption and desensitization eventually stopped.
Year: 2018