Scholarlink

<p>Nowadays, the treatment of industrial solid wastes (ISW) is still one of the major challenges in the field of environmental protection and sustainable development. A common way of recycling ISW and reducing their environmental pollution is to prepare building materials. In this study, in virtue of the high-temperature sintering, an all-solid waste-based foam ceramics was synthesized by using Dexing copper mine tailings (DCMT), Electrolytic manganese slag (EMS) and Coal fly ash (CFA) as raw materials. The results show that when the mass ratio of DCMT/EMS/CFA is 90/10/50, the foam ceramics sintered at 1180&#xa0;°C for 1&#xa0;h shows the best properties, with a low bulk density (0.55&#xa0;g/cm<sup>3</sup>), a high total porosity (69.11%), and an appropriate compressive strength (3.35&#xa0;MPa). In addition, the foam ceramics also shows an excellent immobilization effect of heavy metals. The leaching test shows that the reduction rate of heavy metal (Fe/Mn/Cr/Cu/Zn) in the foam ceramics is over 72%. A feasible method for the high-efficiency utilization of DCMT/EMS/CFA was provided by this study. Meanwhile, the lightweight foam ceramics with high added-value and non-pollution was also obtained.</p> Graphical Abstract <p></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

Dexing Copper Mine Tailings/Electrolytic Manganese Slag/Coal Fly Ash-Derived Self-Foaming Foam Ceramics: Structure, Properties, and Immobilization of Heavy Metals

  • 期刊论文

  • 发表日期：

    2025年12月19日

查看全文
  • Huiling Peng,
  • Hongqian Wang,
  • Li Song,
  • Hui Peng,
  • Yong Luo,
  • Yuan Wang,
  • Liusai Yang,
  • Jie Zheng,
  • Haijin Huang,
  • Jianlei Liu

摘要

Nowadays, the treatment of industrial solid wastes (ISW) is still one of the major challenges in the field of environmental protection and sustainable development. A common way of recycling ISW and reducing their environmental pollution is to prepare building materials. In this study, in virtue of the high-temperature sintering, an all-solid waste-based foam ceramics was synthesized by using Dexing copper mine tailings (DCMT), Electrolytic manganese slag (EMS) and Coal fly ash (CFA) as raw materials. The results show that when the mass ratio of DCMT/EMS/CFA is 90/10/50, the foam ceramics sintered at 1180 °C for 1 h shows the best properties, with a low bulk density (0.55 g/cm3), a high total porosity (69.11%), and an appropriate compressive strength (3.35 MPa). In addition, the foam ceramics also shows an excellent immobilization effect of heavy metals. The leaching test shows that the reduction rate of heavy metal (Fe/Mn/Cr/Cu/Zn) in the foam ceramics is over 72%. A feasible method for the high-efficiency utilization of DCMT/EMS/CFA was provided by this study. Meanwhile, the lightweight foam ceramics with high added-value and non-pollution was also obtained.

Graphical Abstract