Marah Iskander*⁽¹⁾ Naeema Ajeeb⁽²⁾ and Samir Shamsham⁽³⁾

(1). Department of Environment, College of Civil Engineering, Al-Baath University

(2). Scientific Supervisor, , Department of Environment, College of Civil Engineering, Al-Baath University

(3). Department of Soil and Land Reclamation, College of Agriculture, Al-Baath University

(*Corresponding author: Marah Iskander E-mail: Maraheskandar00@gmail.com)

Received: 18/05/2023         Accepted: 20/06/2023

Abstract: 

The research aims to reduce the concentration of cadmium in the soil of Wadi Rabia – the village of Duhairij, which is contaminated with cadmium due to the discharge of industrial wastewater from the Hasya Industrial City, southwest of Homs. The research was conducted at the Environmental Engineering Laboratory- Faculty of Civil Engineering – University of Al-Baath. Soil samples were collected from a depth of 30 cm, 250 meters away well number 8 for drinking water. The soil was then treated using distilled water, 0.1 M sodium oxalate, a mixture of 0.1M sodium oxalate and 0.1M EDTA, and tap water. Two washing methods were used: non-magnetic solutions and magnetic solutions, with three pollution concentrations (8-12-16) ppm soil to solution ratio (1:10). The effectiveness of each solution in removing cadmium was compared in terms of the impact of pollution concentration, washing method, and individual solution, as well as the combined effect of all three variables. The results confirmed that, compared to the control for the first concentration level,  and for tap water solutions, the magnetic mixture was more effective in removing cadmium at the first concentration (8ppm), with significance compared to the other treatments. The percentage of cadmium removal from the soil decreased with increasing pollution concentration when using the same washing solution, while distilled water with magnetism removed the lowest rate of cadmium compared to the other solutions.

Keywords: Cadmium, Hasya district, Industrial drainage, Soil washing, Sodium oxalate.

Full paper in Arabic: pdf