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投稿时间：2024-03-11 修订日期：2024-05-23
投稿时间：2024-03-11 修订日期：2024-05-23
中文摘要: 本文针对钨冶炼厂废水中NaCl含量高、组分复杂的特点，提出了“双极膜电渗析—膜蒸馏”的处理方法，实现其循环利用。10吨中试试验结果表明，高盐多组分钨冶炼废水经膜处理可得到浓度大于206 g/L的盐酸溶液和3380 g/L的氢氧化钠溶液，其中NaCl综合利用率为80.3%。所制备的高浓度酸碱可循环应用于钨冶炼碱煮和酸分解流程中。该膜处理工艺可实现85%高盐多组分钨冶炼废水资源化利用，为彻底解决钨冶炼废水无污染问题提供了技术支撑。
Abstract:In view of the characteristics of high-salt content and complex components in tungsten smelting plant wastewater, this study proposed a treatment method of bipolar membrane electrodialysis-membrane distillation to realize its recycling. The 10 t pilot test results showed that high-salt multi-component tungsten smelting wastewater could be treated with membranes to obtain hydrochloric acid solution with a concentration greater than 206 g/L and sodium hydroxide solution with a concentration of 3380 g/L. The comprehensive utilization rate of NaCl was 80.3%. High-concentration acid or alkaline solutions could be recycled and used in tungsten smelting process of alkaline cooking and acid decomposition. This membrane treatment process could realize the utilization of 85% of high-salt multi-component tungsten smelting wastewater resources. It provided technical support for completely solving the problem of non-pollution of tungsten smelting wastewater.
keywords: high salt wastewater bipolar membrane electrodialysis membrane distillation tungsten smelting acid-alkali concentration
文章编号：20240311003 中图分类号：X703 文献标志码：
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引用文本：
王松林,雷纯鹏,廖德进,邹元焘,高阳,陶黎明,卢永琪,王建军,高志勇.钨冶炼高盐废水资源化制备高浓度酸碱试验[J].矿冶,2025,34(1):.
王松林,雷纯鹏,廖德进,邹元焘,高阳,陶黎明,卢永琪,王建军,高志勇.钨冶炼高盐废水资源化制备高浓度酸碱试验[J].矿冶,2025,34(1):.
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