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Removal of Radioactive Elements from Liquid Waste of Bushehr Nuclear Power Plant with Resin

Dashtinejad , Maryam | 2014

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 45562 (46)
  4. University: Sharif University of Technology
  5. Department: Energy Engineering
  6. Advisor(s): Samadfam, Mohammad; Sepehrian, Hamid; Fasihi, Javad
  7. Abstract:
  8. In this study, granular activated carbon has been modified by potassium nickel hexacyanoferrate ( KNCF), sodium dodecyl sulfate(SDS) and ammonium per sulfate(APS) as new adsorbents for cesium, cobalt and chromium(VI), respectively. The prepared adsorbents were characterized using powder X-ray diffraction(XRD), nitrogen adsorption-desorption isotherm data, infrared spectroscopy, scanning electron microscopy coupled with energy dispersive spectroscopy(SEM-EDS) and their adsorption performance were investigated. The effect of various parameters like the initial pH value of the solution, contact time, temperature, strength ionic of the solution, interference ions and the initial concentration of the metal ions(cesium, cobalt and chromium(VI)) on the adsorption efficiencies of of potassium nickel hexacyanoferrate-loaded granular activated carbon(KNCF-GAC), sodium dodecyl sulfate- loaded granular activated carbon(SDS-GAC) and ammonium per sulfate(APS-GAC) have been studied systematically by batch experiments.
    Adsorption isotherms of KNCF-GAC for Cs+, SDS-GAC for Co2+ and APS-GAC for Cr6+ were studied and the fitted results indicated that the Langmuir model could well represent the adsorption process. The maximum adsorption capacity of Cs+ onto KNCF-GAC and Co2+ onto SDS-GAC and Cr6+ onto APS-GAC were found 163.9, 25.7 and 108.69 mg/g, respectively.
  9. Keywords:
  10. Granular Activated Carbon ; Improvement ; Ammonium Persulfate ; Potassium Nickel Hexacyanoferrate ; Sodium Dodecyl Sulfate ; Cobalt Sorption ; Cesium Sorption

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