Appreciatively Efficient Sorption Achievement to U from the El Sela Area by ZrO[sub.2]/Chitosan

The need to get uranium out of leaching liquid is pushing scientists to come up with new sorbents. This study uses the wet technique to improve the U(VI) sorption properties of ZrO[sub.2]/chitosan composite sorbent. To validate the synthesis of ZrO[sub.2]/CS composite with Zirconyl-OH, -NH, and -NH[...

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Veröffentlicht in:Separations 2022-10, Vol.9 (10)
Hauptverfasser: Negm, Sameh H, Abd El-Magied, Mahmoud O, El Maadawy, Wael M, Abdel Aal, Mostafa M, Abd El Dayem, Samia M, Taher, Mahmoud A, Abd El-Rahem, Khaled A, Rashed, Mohamed N, Cheira, Mohamed F
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Sprache:eng
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Zusammenfassung:The need to get uranium out of leaching liquid is pushing scientists to come up with new sorbents. This study uses the wet technique to improve the U(VI) sorption properties of ZrO[sub.2]/chitosan composite sorbent. To validate the synthesis of ZrO[sub.2]/CS composite with Zirconyl-OH, -NH, and -NH[sub.2] for U(VI) binding, XRD, FTIR, SEM, EDX, and BET are used to describe the ZrO[sub.2]/chitosan wholly formed. To get El Sela leaching liquid, it used 150 g/L H[sub.2]SO[sub.4], 1:4 S:L ratio, 200 rpm agitation speed, four hours of leaching period, and particle size 149-100 µm. In a batch study, the sorption parameters are evaluated at pH 3.5, 50 min of sorbing time, 50 mL of leaching liquid (200 mg/L U(VI)), and 25 °C. The sorption capability is 175 mg/g. Reusing ZrO[sub.2]/CS for seven cycles with a slight drop in performance is highly efficient, with U(VI) desorption using 0.8 M acid and 75 min of desorption time. The selective U(VI) recovery from El Sela leachate was made possible using ZrO[sub.2]/CS. Sodium diuranate was precipitated and yielded a yellow cake with a purity level of 94.88%.
ISSN:2297-8739
2297-8739
DOI:10.3390/separations9100311