Reusability of Al-F Hydroxide Precipitates Generated in Adsorption and Coagulation Treatment of Fluoride for Adsorptive Removal of Arsenic
Reusability of Al-F Hydroxide Precipitates Generated in Adsorption and Coagulation Treatment of Fluoride for Adsorptive Removal of Arsenic
复制标题
吸附混凝处理氟化物吸附除砷过程中产生的Al-F氢氧化物沉淀的重复利用
DOI:
10.1089/ees.2014.0245
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发表时间:
2015-07
影响因子:
1.8
通讯作者:
Qu, Jiuhui
中科院分区:
文献类型:
--
作者:
Liu, Ruiping;Liu, Huijuan;Zhang, Xiwang;Qu, Jiuhui
Abstract This study aims to investigate the feasibility of utilizing Al-F hydroxide precipitates generated in Al hydroxide [Al(OH)3] adsorption [Al(OH)3-Fads] and aluminum (Al) coagulation [Al(OH)3-Fcoag] for adsorptive removal of As(III) and As(V). Al(OH)3-Fads, Al(OH)3-Fcoag, and pristine Al(OH)3 were characterized by nitrogen sorption, X-ray photoelectron spectroscopy, and fourier transform infrared spectroscopy (FTIR) before and after arsenic adsorption. The kinetic study indicated that As(III) and As(V) adsorption on these Al-based solid wastes followed the pseudo-second-order model. The calculated adsorption capacity of Al(OH)3-Fads and Al(OH)3-Fcoag for As(III) was 48.0 and 31.0 mg/g, while it was 84.0 and 56.3 mg/g for As(V), respectively. These adsorption capacities were 25–50% lower compared with pristine Al(OH)3. Anion exchange of fluoride by H2AsO4− and HAsO42− dominated in As(V) removal by Al(OH)3-Fads, while formation of an As-O complex played a more important role in As(V) removal by Al(OH)...
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影响因子:
8.1
作者:
H. Altundoğan;Sema Altundoğan;F. Tümen;M. Bildik
通讯作者:
H. Altundoğan;Sema Altundoğan;F. Tümen;M. Bildik
影响因子:
--
作者:
Xiaohua Sun;H. Doner
通讯作者:
Xiaohua Sun;H. Doner
影响因子:
9.9
作者:
Guo, Huaming;Stueben, Doris;Berner, Zsolt
通讯作者:
Berner, Zsolt
影响因子:
8.8
作者:
Katsoyiannis, I;Zouboulis, A;Bartel, H
通讯作者:
Bartel, H
影响因子:
2.2
作者:
Kun Wu;Ruiping Liu;Huijuan Liu;F. Chang;H. Lan;J. Qu
通讯作者:
Kun Wu;Ruiping Liu;Huijuan Liu;F. Chang;H. Lan;J. Qu