Soil Genesis and Classification of some wastes-rich soils in Egypt
The investigation deals with contaminated soils cover a considerable area in Egypt, in order to clarify their genesis and classification. Five soil profiles representing the most dominant soils closed to the main textile factories in Kafr El Dawar and El Mahala cities, north of the Nile Delta of Egypt. The data showed that these soils are deep to very deep, clayey textured (mostly fine clay), salt-free to extremely affected by salts, natural to mildly alkaline and have low content of both calcium carbonate and gypsum Two subgreat groups were identified. They are Typic Haplotorrerts and Typic Salitorrerts, (Soil Survey Staff, 1998). The concentration of heavy metals suggests that these contaminants are mostly transported and deposited by water or weathered m situ under an aqueous environments. Micromorphological studies indicated that heavy- metal-bearing components of industrial origin existed in soil material as nodules, of different shapes. They referred to chernical formations of aluminosilicates and represented primary particles emitted by industrials. Secondary components, being transformed in soil, existed as diffuse nodules and dark soil aggregates, containing heavy metals in more dispersed forms that can be easily mobilized. Mica mineral is mostly the dominant minerals in the studied soil samples.
classification heavy metals mineralogy micromorpholngy
Gamil W. Ageeb
National Research Centre, Soil and Water Use Dept. , A1 Bohous St, Dokki, Giza, Egypt
国际会议
第九届痕量元素生物地球化学国际会议(9th International Conference on the Biogeochemistry of Trace Elements)
北京
英文
578-579
2007-07-15（万方平台首次上网日期，不代表论文的发表时间）