Study of the heavy metal content of cement and the possibility of reducing their concentrations in cement dust emitted from cement manufacturing plants in the city of Mosul

الملخص

In this research, sixteen samples of dust deposits are collected indoors and outdoors at the two Badoush Cement Factory Expansion and the New Badoush Cement Factory in Mosul city. The aim of the research is identification and estimate the concentrations of the heavy metals in the dust samples emitted from the two Factories and the possibility of reducing the concentration of these metals using an X-ray fluorescence (XRF) device and atomic absorption spectrophotometer. The results of XRF showed the presence of Titanium, Iron, Nickel, Vanadium, Zinc, Chromium, Zirconium, Ruthenium, Europium, Mercury, Strontium, and Aluminum. Other elements appeared in some samples: Gold, Lead, Palladium, Rubidium, and Rhenium. Lead, Iron, Nickel, and Zinc were detected in the dust; Iron showed a higher content level in all samples; it changed between 72.52 μg/ml in sample 6 to 37.59 μg/ml in sample 1 as a minimum level. Nickel ranged between 1.025 μg/ml in sample 1 to 2.875 μg/ml in sample 5. The highest zinc content was detected in sample 16, 0.7555 μg/ml. Cobalt and cadmium were not detected in all samples.