通过响应表面方法 (RSM) 从低等级废物中回收和的大气漏参数的优化
Somayeh Kolbadinejad1, Ahad Ghaemi2
1School of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology, Tehran, Iran.
Scientific reports
|January 17, 2024
概括
这项研究优化了使用大气酸出水的低级废物中和的回收. 响应表面方法实现了高回收率,确定了有效提取金属的关键参数.
科学领域:
- 金工程 金工程 金工程
- 环境科学 环境科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 低质量的废物,特别是来自工厂的废物,含有价值金属,如和.
- 这些金属的有效回收对于资源可持续性和环境保护至关重要.
研究的目的:
- 为了优化大气酸漏参数,从低级工厂废物中回收和.
- 统计调查漏参数对金属回收效率的影响.
主要方法:
- 利用响应表面方法 (RSM) 与中央复合设计 (CCD) 进行实验优化.
- 研究的参数:时间,温度,固体/液体比,粒子大小,氧气注入和pH值.
- 使用X射线衍射 (XRD) 和X射线光 (XRF) 进行废物的特征化;通过原子吸收光谱学量化金属.
主要成果:
- 开发了两个具有高相关系数的二次模型 (的R2:0.9837,:0.9368).
- 确定时间,固体/液体比率和颗粒大小是最有影响力的参数.
- 在特定条件下达到75.05%和86.13%的最佳回收 (S/L 0.08 g/cc,pH 2.5,尺寸88μm,70°C,2.5小时,空气注入).
结论:
- RSM和CCD是优化金属回收过程的有效工具.
- 该研究提供了一个强大的方法来从具有挑战性的低档废物流中回收和.
- 优化的条件显示出金属回收工业应用的巨大潜力.
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