International Journal of Waste Resources

Nuclear Materials Authority, P.O. Box 530 Maadi, Cairo, Egypt

Biography

Dr. Amr Abdelrahman, Chairman of the Structural Engineering Department and Professor of Concrete Structures, Ain Shams University, Cairo, Egypt. He is a member in the following Egyptian Codes; Design and Construction of Concrete Structures, Design and application of Fiber Reinforced Polymers in Construction (Vice President), and Planning, Design and Construction of Bridges and Highways. 

Publications

• Original Research Article   
  Synthesis of a Novel Composite Hydrous Titanium Oxide- Hydroxyapatite for Adsorbing Uranium from Waste Effluents
  Author(s): Amr H Ali*, Shaimaa MA Esmaeel, Salah A Zaki and Mohammed S Hagag
  
  In this paper; a novel composite (HAP@HTO)derived from hydrous titanium oxide (HTO) extracted from Rosetta ilmenite mineral and hydroxyapatite (HAP) was formed by co-precipitation method,specified and used for uranium preconcentration from its solutions. Batch tests were performed to investigate its selectivity towards uranium; maximum adsorption efficiency reached at pH 2.5, 120 minutes contact time, 900 mg L–1 uranium concentration and adsorbent ratio (0.1g/75 mL). The equilibrium data fitted well with Langmuir adsorption isotherm. From Kinetics and thermodynamics data; process was fast, fitted well with pseudo-second order, spontaneous and exothermic. The percentage desorption of uranium reached its maximal at 15 minutes equilibrium time using 1 mol L-1 H2SO4. Thereby, (HAP@HTO)composite has promising potential applications in extra.. View more»
  

  DOI: 10.35248/2252-5211.20.10.390

  Abstract HTML PDF