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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Phosphate ion removal from a solution by soda-lime borosilicate glass
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Phosphate ion removal from a solution by soda-lime borosilicate glass

机译：钠钙硼硅酸盐玻璃从溶液中去除磷酸根离子

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摘要

The excessive phosphate ion content in industrial wastewater causes water eutrophication. The objective of this study is to develop a new method of phosphate ion removal from wastewater using soda-lime borosilicate glass. Soda-lime borosilicate glass with high content of modifiers is reacted in a solution containing phosphate ions. Ca2+ ions that are leached out of the glass combine with P5+ ions in a solution to form hydroxyapatite crystals on the glass surface. The phosphate ions can thereby be removed from the solution. The phosphate ion removal rate was highest when glass containing 20-30 mol% of CaO was reacted in a solution with pH of 3.0. The phosphate ion removal rate was faster when the glass was reacted with the solution under a dynamic condition than under a static condition. The elimination rate also strongly depended on the surface area of the glass.
机译：工业废水中过量的磷酸根离子含量导致水富营养化。这项研究的目的是开发一种使用钠钙硼硅酸盐玻璃从废水中去除磷酸根离子的新方法。具有高含量改性剂的钠钙硼硅酸盐玻璃在含有磷酸根离子的溶液中反应。从玻璃中浸出的Ca2 +离子与P5 +离子在溶液中结合，在玻璃表面形成羟基磷灰石晶体。由此可以从溶液中除去磷酸根离子。当含有20-30 mol％CaO的玻璃在pH为3.0的溶液中反应时，磷酸根离子的去除率最高。当玻璃与溶液在动态条件下反应时，其磷酸根离子去除速率比在静态条件下更快。消除速率也强烈取决于玻璃的表面积。

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