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Abstract Iicroorgani ”111S are the first forms of appeared lite 011 the earth. Phosphorou i an ssential and non-substituted macrouutrient element for the urvival of all living forms of life. Pho phate rocks are nonrenewable re erve of phosphorus which feed pho pilate fertilizer industry The phosphate deposit of Abu-Tartur area in southern ” estern Desert is the bigger pho pbete depo itt in Egypt \ here it P20s content range from about _2-_ -%. The phosphate rocks contain 11 ually gangue minerals other than francolite which is the main bearing mineral of phosphorus which include calcite. dolomite. quartz and clay minerals. Many rar and toxic elements are frequently incorporated in the pho phate rock .uch as As. d 11, Cr, Zn, U, Th and RE . The biological pr essing of Abu-Tartur pho phate rock, for P105 upgrading and minimizing the toxic and radioactive element ill rhe fioal product i the main target of the current rudy. llaborative mineralogical and chemical analytical technique are used III the current . rudy to iuve ugate the original and biologically treated amples a well a obtained tractions. The analytical techniqu s include XRD. JR, SEM-DX, lCP- IS and wet-chemical analysis. The mineralogical constituents of the phosphate sampl s and fractions are determin d by XRD analy i whereas anion group are investigated by infrared method. The EDX analysi attached to the ’canning electron microscope are usually applied for semi-quantitative quality control during experimeural work. The obtained re ulrs are rec ufirm d through chemical aualy 1 by usiug spectrophorometer and JC’P-M techniques. |