Recovery of Manganese Ions from Aqueous Solutions with Cyanex 272 Using Emulsion Liquid Membrane Technique: A Design of Experiment Study
Recovery of Manganese Ions from Aqueous Solutions with Cyanex 272 Using Emulsion Liquid Membrane Technique: A Design of Experiment Study
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使用乳液液膜技术用 Cyanex 272 从水溶液中回收锰离子：实验研究设计
DOI：
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发表时间：
2021
影响因子：
2.4
通讯作者：
I. Cacciotti
中科院分区：
文献类型：
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作者：
Iman Salahshoori;A. Seyfaee;A. Babapoor;I. Cacciotti
锰（Mn）是工业中使用最广泛的金属之一，即使它是剧毒的。因此，含锰废物的积累是主要的环境问题之一。由于这个原因，从水溶液中回收它是特别重要的，并获得了很多的兴趣。在水处理技术中，乳状液膜技术具有操作简单、效率高、一步萃取等优点。因此，ELM技术具有很高的去除效率，有望取代传统的重金属离子去除方法。本研究旨在分析ELM法去除水中锰离子的可行性。因此，在第一步中，对影响液膜稳定性的物理化学因素进行了研究。然后，采用部分因子设计（FFD）方法对影响锰离子萃取的关键因素进行筛选，如载体浓度、乳化液与料相体积比、料相pH值、W/O/W乳化液搅拌时间和搅拌速度。根据收集的结果，当载体浓度、乳液/料相体积比、料相pH、W/O/W乳液搅拌时间和W/O/W乳液搅拌速度分别为~ 8%v/v、~ 3、~ 4、~ 17 min和~ 450 rpm时，实现最大提取（> 97%）。
Manganese (Mn) is one of the most widely used metals in industry, even if it is highly toxic. Thus, the accumulation of manganese-containing wastes is one of the main environmental concerns. For this reason, its recovery from aqueous solutions is of particular importance and is gaining a lot of interest. Among the water treatments, emulsion liquid membrane (ELM) presents several advantages, such as ease of use, high efficiency, and single-step extraction. Therefore, the ELM technique has a high potential to replace the conventional methods for removing heavy metal ions, particularly for its high removal efficiency. The present research aims to analyze the feasibility of manganese ions removal from the water via the ELM method. Therefore, in the first step, the physicochemical factors affecting the stability of the liquid membrane were investigated. Then, the fractional factorial design (FFD) method was used to screen and choose the pivotal, influential factors on manganese ion extraction, such as carrier concentration, emulsion-to-feed phase volume ratio, feed phase pH, water-in-oil-in-water (W/O/W) emulsion stirring time and speed. Based on the collected results, the maximum extraction (> 97%) was achieved when the carrier concentration, emulsion/feed phase volume ratio, feed phase pH, W/O/W emulsion stirring time, and W/O/W emulsion stirring speed were ~ 8% v/v, ~ 3, ~ 4, ~ 17 min, and ~ 450 rpm, respectively.
影响因子：
8.6
作者：
M. Feng;Marco Wenzel;Shaona Wang;H. Du;Yi Zhang;J. Weigand
通讯作者：
M. Feng;Marco Wenzel;Shaona Wang;H. Du;Yi Zhang;J. Weigand