离子交换树脂去除废水中的有毒金属。第十八部分:钒(V)/氢+/琥珀石958

IF 0.6 4区材料科学 Q4 METALLURGY & METALLURGICAL ENGINEERING

Revista De Metalurgia Pub Date : 2022-12-27 DOI:10.3989/revmetalm.227

F. J. Alguacil, E. Escudero

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引用次数: 5

摘要

采用离子交换树脂Amberlite 958，研究了其去除水中有害钒的性能。在搅拌速度、水溶液pH、树脂投加量、水溶液初始钒(V)、温度等不同的水动力条件和化学条件下进行了研究。钒(V)在树脂上的吸收高度依赖于溶液的pH值，因此，这一阶段的钒(V)形态;离子交换过程具有吸热特性。在不同的实验条件下，将实验数据拟合到不同的模型:动力学(搅拌速度)、速率定律(钒浓度)和模型等温线(树脂用量)。研究了多壁碳纳米管对溶液中钒的去除效果。负载在树脂上的钒(V)可以在酸性条件下被洗脱。

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The removal of toxic metals from liquid effluents by ion exchange resins. Part XVIII: Vanadium(V)/H+/Amberlite 958

The ion exchange resin Amberlite 958 was used to investigate its behaviour on the removal of hazardous vanadium(V) from aqueous media. This investigation was carried out under various hydrodynamic conditions and chemical conditions, such as variation of the stirring speed, variation of the pH of the aqueous solution, resin dosage, initial vanadium(V) in the aqueous solution, and temperature. Vanadium(V) uptake onto the resin was highly dependent on the pH of the solution, and thus, to the vanadium(V) speciation in this phase; the ion exchange process had an endothermic character. The experimental data, under different experimental conditions, were fitted to various models: kinetics (stirring speed), rate law (vanadium concentration) and model isotherms (resin dosage). Multiwalled carbon nanotubes were also investigated on vanadium(V) removal from the solution. Vanadium(V) loaded onto the resin can be eluted under acidic conditions.

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来源期刊

Revista De Metalurgia 工程技术-冶金工程

CiteScore

1.30

自引率

25.00%

发文量

审稿时长

>12 weeks

期刊介绍： Revista de Metalurgia is a bimonhly publication. Since 1998 Revista de Metalurgia and Revista Soldadura have been combined in a single publicación that conserves the name Revista de Metalurgia but also includes welding and cutting topics. Revista de Metalurgia is cited since 1997 in the ISI"s Journal of Citation Reports (JCR) Science Edition, and in SCOPUS.