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首页> 外文期刊>Separation and Purification Technology >Removal of nitrates by electrolysis in non-chloride media: Effect of the anode material
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Removal of nitrates by electrolysis in non-chloride media: Effect of the anode material

机译：在非氯化物介质中通过电解去除硝酸盐：阳极材料的影响

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In this work, the influence of the anodic material on the electrolysis of wastewaters polluted with nitrates is studied in non-divided electrochemical cells. Conductive-diamond (CDE) and oxygen dimensionally stable anodes (DSA-O2) were chosen as models of anodes to study this influence. Ammonium ions, nitrite and nitric oxide were found as the main species involved in the electrolysis of nitrates in sulphate media with both anodes, but CDE was found to lead to a highly more-efficient electrochemical removal of nitrate than DSA-O2. The huge differences observed for both anodes indicate an important role of electro-generated species in the overall reactivity of the system. In this work, the influence of these species is described, and the observed effect is explained in terms of the chemical and electrochemical reactivity of nitrogen species.
机译：在这项工作中，在不分隔的电化学池中研究了阳极材料对被硝酸盐污染的废水电解的影响。选择导电金刚石（CDE）和氧尺寸稳定的阳极（DSA-O2）作为阳极模型来研究这种影响。铵离子，亚硝酸盐和一氧化氮被发现是在硫酸盐介质中同时使用两个阳极电解硝酸盐的主要物质，但是发现CDE可以比DSA-O2高效去除硝酸盐。对于两个阳极观察到的巨大差异表明，电产生的物质在系统的整体反应性中具有重要作用。在这项工作中，描述了这些物质的影响，并根据氮物质的化学和电化学反应性解释了观察到的效果。

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