Scholarlink

<p>The reuse of mineral processing wastewater remains a challenge in certain scenarios, as residual reagents could substantially impair separation efficiency. In this fundamental research, magnetic flocculation separation technology was applied to remove residual surfactants from synthesized mineral processing wastewater. Micron-sized iron powder and polyaluminum chloride (PAC) are adopted as magnetic medium and flocculants. A total organic carbon (TOC) removal efficiency of 94.31% can be achieved through optimization of the experimental process, and surface tension of solution elevated from 26.75 mN/m to 65.34 mN/m. Zeta potential analysis and X-ray photoelectron spectroscopy (XPS) characterization shows that micron-sized iron powder significantly enhanced the flocculation process. Observation of microscopy and scanning electron microscopy (SEM) reveals that the floc size and density were greatly increased during the sedimentation process, thus improving solid-liquid separation efficiency. Real mineral processing wastewater treated with magnetic flocculation separation method was reused in flotation, and the results shows significant improvement for the metal concentration. The recycled micron iron powder shows similar behavior during the magnetic flocculation separation process. This research provides a practical solution for mitigating the accumulation of residual reagents when recycling the mineral processing wastewater.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Enhanced Removal of Surfactants from Mineral Processing Wastewater via Magnetic Flocculation Separation

  • 期刊论文

  • 发表日期：

    2026年1月6日

查看全文
  • Heng Zhang,
  • Dongxia Feng,
  • Chenhao Zhang,
  • Xujie Wen,
  • Meng Dong,
  • Xuanxu Luo,
  • Yuanbin Liu

摘要

The reuse of mineral processing wastewater remains a challenge in certain scenarios, as residual reagents could substantially impair separation efficiency. In this fundamental research, magnetic flocculation separation technology was applied to remove residual surfactants from synthesized mineral processing wastewater. Micron-sized iron powder and polyaluminum chloride (PAC) are adopted as magnetic medium and flocculants. A total organic carbon (TOC) removal efficiency of 94.31% can be achieved through optimization of the experimental process, and surface tension of solution elevated from 26.75 mN/m to 65.34 mN/m. Zeta potential analysis and X-ray photoelectron spectroscopy (XPS) characterization shows that micron-sized iron powder significantly enhanced the flocculation process. Observation of microscopy and scanning electron microscopy (SEM) reveals that the floc size and density were greatly increased during the sedimentation process, thus improving solid-liquid separation efficiency. Real mineral processing wastewater treated with magnetic flocculation separation method was reused in flotation, and the results shows significant improvement for the metal concentration. The recycled micron iron powder shows similar behavior during the magnetic flocculation separation process. This research provides a practical solution for mitigating the accumulation of residual reagents when recycling the mineral processing wastewater.