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首页> 外文会议>Energy Technologies Symposium >Evaluation of the Occurrence of Fouling and Scaling on the Membrane HDX 200 for the Treatment of the Effluent of Brass Electrodeposition with EDTA as Complexing Agent
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Evaluation of the Occurrence of Fouling and Scaling on the Membrane HDX 200 for the Treatment of the Effluent of Brass Electrodeposition with EDTA as Complexing Agent

机译：膜HDX 200对膜HDX 200的污垢和缩放的发生评价，用于治疗EDTA作为络合剂的黄铜电沉积污水

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Considering the risks involving the use of cyanide, other complexing agents have been evaluated for the treatment by electrodialysis of the effluent of brass electrodeposition and among them, EDTA is interesting since it has been already tested for many years to separate ions. The main objective of the present paper was to evaluate the occurrence of fouling and scaling on the surface of the anion-exchange membrane HDX 200 by the construction of chronopotentiometric curves and speciation diagrams in different conditions (pH between 10-12 and proportion of cupric ions of 30%, 50%, 70%). According to the results, the chronopotentiometric curves did not show additional inflexion points typical for the cases which occurs fouling and scaling for the pH values evaluated, which is in accordance with the speciation diagrams of the solutions constructed with the aid of Hydra-Medusa software. Hence, the pH and the proportion of cupric ions did not show influence on the curves behavior.
机译：考虑到涉及使用氰化物的风险，已经评估了通过黄铜电沉积的流出物的电渗析和它们中的电渗析来评估其它络合剂，因为它已经有趣，因为它已经测试了多年来分离离子。本文的主要目的是通过在不同条件（pH值为10-12之间的pH值和铜铜离子的比例之间的pH值之间的时间计量曲线和物种图来评估污垢和缩放在阴离子交换膜HDX 200表面上的发生污垢和缩放的发生。 30％，50％，70％）。根据结果​​，计时管测量曲线未显示出典型的额外的inflowlion点，其出现污染的情况和对评估的pH值进行污垢，这是根据借助于Hydra-Medusa软件构成的解决方案的形态图。因此，pH和铜离子的比例没有显示对曲线行为的影响。

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