通过超声波辅助的硫酸铁生物酸提取电污泥中的增强排毒和贵金属提取
Mehrdad Kordloo1, Nima Jafari2, Ali Rezaei2
1School of Mining Engineering, College of Engineering, University of Tehran, Tehran, Iran. Mehrdad.kordloo@ut.ac.ir.
Scientific reports
|January 31, 2026
概括
本研究介绍了一种超声波辅助的硫酸铁生物酸 (FSBA) 工艺,用于有效地从危险的电污泥中回收金属. 这种创新方法快速出,铜和,为废物回收利用提供了可持续的解决方案.
科学领域:
- 环境科学 环境科学
- 化学工程是化学工程的重要组成部分.
- 材料科学 材料科学 材料科学
背景情况:
- 电污泥 (ES) 是一种含有有价值重金属的危险废物.
- 目前的处置方法带来环境风险和经济损失.
- 回收ES对于资源回收和污染预防至关重要.
研究的目的:
- 开发一种高效快速的方法,从ES中出 (Cr),铜 (Cu) 和 (Ni).
- 为了研究超声波辅助硫酸铁生物酸 (FSBA) 工艺的有效性.
- 使用FSBA方法评估ES的环境排毒.
主要方法:
- 使用 Acidithiobacillus 铁氧化物超浮剂来产生铁离子和硫酸.
- 采用了超声波辅助的浸出工艺.
- 系统地调查S/L比率,动速度和温度等参数.
- 使用元素分析,FESEM和XRD分析金属提取.
- 进行了合成沉洗程序和毒性特征洗程序测试.
主要成果:
- 在8分钟内实现了高提取效率:Cr的92.51%,Cu的86.91%和Ni的91.25%.
- 超声波显著提高了金属提取率,减少了水时间.
- 在75°C时观察到在残留表面上形成酸的形成.
- 在FSBA过程中,证明了ES的有效排毒.
结论:
- 超声波辅助的FSBA工艺是一种高效的方法,可以从电泥中回收有价值的金属.
- 这种方法为危险废物管理提供了可持续和环保的解决方案.
- 该过程促进了大量的金属回收和有效的废物排毒.
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