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1.齐齐哈尔大学 化学与化学工程学院,黑龙江 齐齐哈尔 161006
2.齐齐哈尔大学 黑龙江省工业大麻加工技术创新中心,黑龙江 齐齐哈尔 161006
张旭男,博士,讲师,研究方向:分析检测,E-mail:isaachit@126.com
宗 薇,博士,副教授,研究方向:环境污染和生化分析,E-mail:viahit@126.com
纸质出版日期:2024-09-15,
收稿日期:2024-04-09,
修回日期:2024-05-21,
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韩明雪,张旭男,宗薇.基于PEG-硫酸钠双水相体系萃取工业废水中的镍[J].分析测试学报,2024,43(09):1425-1432.
HAN Ming-xue,ZHANG Xu-nan,ZONG Wei.Nickel Extraction from Industrial Wastewater Based on PEG-Sodium Sulfate Aqueous Two-phase System[J].Journal of Instrumental Analysis,2024,43(09):1425-1432.
韩明雪,张旭男,宗薇.基于PEG-硫酸钠双水相体系萃取工业废水中的镍[J].分析测试学报,2024,43(09):1425-1432. DOI: 10.12452/j.fxcsxb.24040903.
HAN Ming-xue,ZHANG Xu-nan,ZONG Wei.Nickel Extraction from Industrial Wastewater Based on PEG-Sodium Sulfate Aqueous Two-phase System[J].Journal of Instrumental Analysis,2024,43(09):1425-1432. DOI: 10.12452/j.fxcsxb.24040903.
该文采用聚乙二醇(PEG)和硫酸钠(Na
2
SO
4
)构建双水相体系(ATPS),对废水中的镍离子进行选择性提取和分离。通过对萃取剂种类及其质量浓度、盐溶液pH值、反应温度等条件进行优化,结果表明,在35 ℃,萃取剂海藻酸钠(SA)为0.1 g/L的条件下,超过80%的镍离子可以从pH 2.0的盐溶液中有效、准确地分离出来。同时多种共存离子不会对萃取产生干扰。该研究为废水中镍离子的处理及回收提供了理论指导,丰富了绿色生产技术中水凝胶配体-双水相萃取系统的研究内容。
Nickel is a toxic metal element that causes sensitization and is classified as a human carcinogen. Improper handling of nickel can make it a major source of water and soil pollution. The recovery of nickel ions from wastewater containing nickel is considered to be one of the effective ways to reduce pollution and solve the shortage of nickel resources. However,the problem of efficient and selective separation of nickel from complex environments has not been fully solved. In this paper,polyethylene glycol(PEG) and sodium sulfate were used to construct a two-phase aqueous system(ATPS) to selectively extract and separate nickel from wastewater. The types and concentration of nickel extractant,pH value of salt solution,temperature and co-existing metal ions were further optimized. The results showed that:At 35 ℃,the sodium alginate(SA) concentration is 0.1 g/L,more than 80% of nickel ions are efficiently and accurately separated from pH 2.0 salt solutions. The interference of multiple co-existing ions is avoided. Therefore,this work provides theoretical guidance for the treatment and reuse of nickel ions in wastewater,and the research content of hydrogel ligand-two-phase aqueous extraction system in green production technology was enriched.
双水相萃取镍离子电感耦合等离子体质谱工业废水
aqueous two-phase systemextractionnickel ionICP-MSindustrial wastewater
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