Concentration and/or Removal of Metal Ions Using a Water-Soluble Chelating Polymer and a Microporous Hollow Fiber Membrane
Concentration and/or Removal of Metal Ions Using a Water-Soluble Chelating Polymer and a Microporous Hollow Fiber Membrane
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使用水溶性螯合聚合物和微孔中空纤维膜浓缩和/或去除金属离子
DOI：
10.1021/ie00028a017
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发表时间：
1994
影响因子：
4.2
通讯作者：
S. Masuda
中科院分区：
文献类型：
--
作者：
T. Tomida;Tatsuya Inoue;K. Tsuchiya;S. Masuda
研究了利用水溶性螯合聚合物和微孔中空纤维从稀溶液中浓缩和/或去除金属离子的方法。以聚丙烯酸和Cu（II）为模型体系进行了实验。在一次通过模式中，其中金属溶液在浸入聚合物溶液中的纤维内部流动，通过使用1.2-m长和0.8-mm内径的纤维，样品溶液中高达80%的金属离子浓度被去离子。在循环模式中，聚合物溶液循环通过浸入样品溶液中的纤维，即使当浓度远低于回收侧的浓度时，金属离子也可以从稀溶液中回收。在该实验中获得的总传质系数为10[sup [minus]6]-10 [sup [minus]5]m/s。这里报道的方法被证明是有效的浓缩和/或从稀溶液中除去金属离子。
Methods for concentrating and/or removing metal ions from dilute solutions using a water-soluble chelating polymer and a microporous hollow fiber were studied. Experiments were made with a model system of polyacrylic acid and Cu(II). In the once-through mode, where the metal solution flowed inside the fiber immersed in the polymer solution, concentrations of metal ions of as high as 80% in the sample solutions were deionized by use of a fiber of 1.2-m length and 0.8-mm inner diameter. In the circulating mode, where the polymer solution was circulated through the fiber immersed in the sample solution, the metal ions could be recovered from dilute solutions even when concentrations were much lower than those on the recovery side. The overall mass transfer coefficient obtained in this experiment was 10[sup [minus]6]--10[sup [minus]5]m/s. The methods reported here were demonstrated to be effective for concentrating and/or removing metal ions from dilute solutions.