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Zhang Xiujuan and Huang Pingyu (Environmental Science Institute, South China University of Technology, Guangzhou)
Online:
Published:
张秀娟,黄平瑜
Abstract: A new liquid membrane system is established with a double carrier(TRPO, a mixture of trialkyl phosphine oxime, and HDEHP, bis-(2-ethylhextyl)phosphoric acid)membrane phase, basic inner aqueous phase and weak acidic waste water phase for the removal of Cd2+ and CN- simultaneously and the direct re-use of the concentrated Cd(CN)42- in plating tanks. In order to describe the matching of the transport rates of Cadmium and Cyanide in this system, a synchronous-transport concept is developed and mathematically presented to be the same form of the liquid membrane transport rate equations of the two transported species. These equations can be used as a guidance for the selection of the optimum operation condition for the separation process.
摘要: 本文研究了氰化镀镉废水中同时除去氰和镉并将其以Cd(CN)_4形式浓缩而直接回用的可能性.建立了以TRPO(混合三烷基氧膦)和HDEHP[二-2(乙基己基)磷酸,]为载体的液膜分离体系,解决了Cd~(2+)和CN-的迁移速度相匹配问题,提出了同步迁移的概念,及其数学表达式.最后用同步迁移指导最佳操作条件的选择.
Zhang Xiujuan and Huang Pingyu (Environmental Science Institute, South China University of Technology, Guangzhou). Establishment of Synchronous-Transport Concept in Liquid Membrane Separation[J]. .
张秀娟,黄平瑜. 液膜分离中同步迁移概念的建立 [J]. CIESC Journal.
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https://hgxb.cip.com.cn/EN/Y1988/V39/I5/570