Sequential Extraction of some Minerals from Jebel Toria Area Soil

Abstract

Jebel Toria is a hell south of Omdurman, where different types of heavy machines are moving. The machine are moving rocks and crushing them to smaller sizes. Some rocks and stones are used in building foundation. Some rocks are crushed to be used in roads manufacturing. Samples of soils were taken at (20cm) depth. Four samples were collected at distance of 100 meter far from Jebel toria in the four principle directions. A fifth sample was taken from east north direction. The sixth sample was a reference sample. It was collected from 1000 meter far from heavy machines moving area. The aim of this study was determined if the soil around the hell are polluted by some metallic minerals or not. The sequence extraction method (BCR) was used to extract the concerned minerals from the six soil samples. Some physicochemical properties has been studied. These include ash content, moisture contents and concentration of Iron, Copper, Nickel and chromium. The analysis showed that the fraction number (4) of the extraction has the highest value of Iron, Copper, Nickel and chromium concentration compared to the other three fractions.