Using Various Surfactants for Ultrafiltration Removal of Cobalt(II) Ions from Contaminated Water

IF 0.5 4区 化学 Q4 CHEMISTRY, ANALYTICAL
L. Yu. Yurlova, I. Yu. Romaniukina
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引用次数: 0

Abstract

Heavy metals (HM) are among the most dangerous inorganic ecotoxicants that can have a mutagenic and toxic effect on all objects of the biosphere. Ingressing a living organism, heavy metals can accumulate in various tissues and organs, causing their dysfunction. Therefore, water contamination with heavy metals is among the most urgent problems of environmental safety in both our country and the whole world, and the development of modern, efficient, and cost-effective methods for purifying contaminated water from heavy metals is an essential and urgent task today. Baromembrane separation in combination with other physical and chemical processes is one of the effective methods for extracting heavy metal ions from contaminated waters. In this work, we studied the possibility of using an anionic surfactant sodium dodecyl sulfate (NaSDS) and nonionic polyethylene glycol tert-octylphenyl ether (Triton X-100) to purify contaminated waters from Co(II) by ultrafiltration. The main characteristics of the baromembrane process were determined: the retention factors of the ions of the tested metal and the volumetric flow rate through the polymeric ultrafiltration membrane. Ultrafiltration in combination with the use of surfactants is effective for water purification from heavy metal ions or radionuclides, as demonstrated by an example of Co(II). The process should be performed at concentrations of surfactants near the critical micelle concentration for optimal results.

Abstract Image

用多种表面活性剂超滤去除污染水中的钴(II)离子
重金属(HM)是最危险的无机生态毒性物质之一,可对生物圈的所有物体产生诱变和毒性影响。重金属进入生物体后,会积聚在各种组织和器官中,导致其功能障碍。因此,水的重金属污染是我国和世界上最紧迫的环境安全问题之一,开发现代、高效、经济高效的重金属污染水净化方法是当今重要而紧迫的任务。气压膜分离与其他物理和化学过程相结合是从污染水中提取重金属离子的有效方法之一。在本工作中,我们研究了使用阴离子表面活性剂十二烷基硫酸钠(NaSDS)和非离子聚乙二醇叔辛基苯基醚(Triton X-100)通过超滤净化Co(II)污染水的可能性。确定了压力膜工艺的主要特征:被测金属离子的保留因子和通过聚合物超滤膜的体积流速。如Co(II)的例子所示,超滤与表面活性剂的使用相结合对于从重金属离子或放射性核素中净化水是有效的。该过程应在接近临界胶束浓度的表面活性剂浓度下进行,以获得最佳结果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Journal of Water Chemistry and Technology
Journal of Water Chemistry and Technology CHEMISTRY, APPLIED-CHEMISTRY, ANALYTICAL
自引率
0.00%
发文量
51
审稿时长
>12 weeks
期刊介绍: Journal of Water Chemistry and Technology focuses on water and wastewater treatment, water pollution monitoring, water purification, and similar topics. The journal publishes original scientific theoretical and experimental articles in the following sections: new developments in the science of water; theoretical principles of water treatment and technology; physical chemistry of water treatment processes; analytical water chemistry; analysis of natural and waste waters; water treatment technology and demineralization of water; biological methods of water treatment; and also solicited critical reviews summarizing the latest findings. The journal welcomes manuscripts from all countries in the English or Ukrainian language. All manuscripts are peer-reviewed.
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