Removal and recovery of U(VI) from aqueous effluents by flax fiber: Adsorption, desorption and batch adsorber proposal

被引：39

作者：

Abutaleb, A. ^{[1
]}

Tayeb, Aghareed M. ^{[2
]}

Mahmoud, Mohamed A. ^{[1
,3
]}

Daher, A. M. ^{[3
]}

Desouky, O. A. ^{[3
]}

Bakather, Omer Y. ^{[1
,5
]}

Farouq, Rania ^{[4
]}

机构：

[1] Jazan Univ, Coll Engn, Dept Chem Engn, Jazan, Saudi Arabia

[2] Minia Univ, Dept Chem Engn, Coll Engn, Al Minya, Egypt

[3] Nucl Mat Author, Cairo, Egypt

[4] Pharos Univ, Petrochem Engn Dept, Alexandria, Egypt

[5] Hadhramout Univ, Dept Chem Engn, Coll Engn, Mukalla, Yemen

来源：

JOURNAL OF ADVANCED RESEARCH | 2020年 / 22卷

关键词：

Adsorption; Uranium; Flax fiber; Recovery; Yellow cake; EQUILIBRIA. WRONG USE; VANT HOOF EQUATION; THERMODYNAMIC PARAMETERS; URANIUM VI; SORPTION; IONS; PRECONCENTRATION; CONSTANT; THORIUM;

D O I：

10.1016/j.jare.2019.10.011

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Flax fiber (Linen fiber), a valuable and inexpensive material was used as sorbent material in the uptake of uranium ion for the safe disposal of liquid effluent. Flax fibers were characterized using BET, XRD, TGA, DTA and FTIR analyses, and the results confirmed the ability of flax fiber to adsorb uranium. The removal efficiency reached 94.50% at pH 4, 1.2 g adsorbent dose and 100 min in batch technique. Adsorption results were fitted well to the Langmuir isotherm. The recovery of U (VI) to form yellow cake was investigated by precipitation using NH4OH (33%). The results show that flax fibers are an acceptable sorbent for the removal and recovery of U (VI) from liquid effluents of low and high initial concentrations. The design of a full scale batch unit was also proposed and the necessary data was suggested. (C) 2019 The Authors. Published by Elsevier B.V. on behalf of Cairo University.

引用

页码：153 / 162

页数：10

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