...
首页> 外文期刊>Desalination: The International Journal on the Science and Technology of Desalting and Water Purification >Accelerated chemical conversion of metal cations dissolved in seawater-based reject brine solution for desalination and CO2 utilization
【24h】

Accelerated chemical conversion of metal cations dissolved in seawater-based reject brine solution for desalination and CO2 utilization

机译:溶于海水的废弃盐水溶液的金属阳离子的加速化学转化,用于脱盐和二氧化碳利用

获取原文
获取原文并翻译 | 示例
           

摘要

A new desalination and carbon utilization method was developed using all of three major cations dissolved in seawater-based industrial wastewater (i.e., calcium, magnesium, and sodium). Here, three types of metal-based inorganic substances could be produced and utilized without additional energy requirements for precipitation reactions. Calcium and magnesium were separated in the form of hydroxide precipitates. Using a 30 wt% aqueous monoethanolamine (MEA) solution, carbon dioxide was captured and reacted with the hydroxides to produce calcium carbonate and magnesium carbonate. After Ca2+ and Mg2+ separation, sodium chloride was used to produce sodium bicarbonate based on the characteristics of primary alkanolamines mixed with a high concentration of sodium ions. The entire process produced 0.3819, 0.2549, and 0.4579 mol of calcium carbonate, magnesium carbonate, and sodium bicarbonate, respectively. X-ray diffraction (XRD) and scanning electron microscopy (SEM) were conducted to investigate their crystal structure. Moreover, FT-IR spectroscopy was utilized to investigate the ionic species under Na+-rich conditions.
机译:使用溶解在海水的工业废水中的所有三个主要阳离子(即钙,镁和钠)开发了一种新的脱盐和碳利用方法。这里,可以生产和使用三种类型的金属基无机物质,而无需额外的沉淀反应的能量要求。以氢氧化物沉淀物形式分离钙和镁。使用30wt%的单乙醇胺(MEA)溶液,捕获二氧化碳并与氢氧化物反应以产生碳酸钙和碳酸镁。在Ca2 +和Mg2 +分离后,使用氯化钠基于与高浓度的钠离子混合的初级链烷醇胺的特性产生碳酸氢钠。整个方法分别产生0.3819,0.2549和0.4579摩尔碳酸钙,碳酸镁和碳酸氢钠。进行X射线衍射(XRD)和扫描电子显微镜(SEM)以研究其晶体结构。此外,使用FT-IR光谱研究在Na + -RICH条件下研究离子物质。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号