一种用于有效固化和从多金属电泥中制备原始不钢的新方法
Wang Heng1, Yu Yong1, Hu Jianhang1
1Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction, Ministry of Education, Kunming University of Science and Technology, Kunming, China; State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming, China; National Local Joint Engineering Research Center of Energy Saving and Environmental Protection Technology in Metallurgy and Chemical Engineering Industry, Kunming University of Science and Technology, Kunming, China; Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, China.
这项研究引入了一种新方法,可以从电污泥中回收像这样的贵金属,将危险废物转化为原始不钢. 这一过程有效地固化了,减少了环境风险,改善了资源回收.
科学领域:
- 环境科学与工程环境科学与工程
- 材料科学和金 材料科学和金
- 废物管理和回收利用
背景情况:
- 电污泥 (ES) 是一种富含Cr,Cu,Ni和Fe的危险废物.
- 当前玻璃化工艺中的残留会给环境带来风险.
- 从ES中有效回收和固化至关重要.
研究的目的:
- 提出一种用于从电污泥中回收和固化的新方法.
- 提高Cr,Cu,Ni和Fe的回收,用于生产不钢.
- 为了研究固化的环境稳定性.
主要方法:
- 电污泥 (ES) 进行了脱硫.
- 同时处理ES与铁 (Fe-Si) 和废碳阳极 (SCA).
- 分析Cr,Cu,Ni和Fe的回收率和的漏含量.
主要成果:
- 在Cr,Cu,Ni和Fe的回收率分别达到96.96%,99.45%,99.92%和99.20%.
- 与现有研究相比,恢复率的显著改善.
- 在pH2-4中,漂水含量保持在5mg/L以下,表明稳定性得到了增强.
结论:
- 拟议的方法有效地回收有价值的金属,并从电污泥中固化.
- 形成一个Si-Ca-F-Na-Al-O相和Cr-Cu-S色增强了的固化.
- 这种创新方法为处理含的固体废物提供了可持续的解决方案.
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