流和主要可交换的发生在钢铁工厂:从干烟气脱硫过程的新见解
Shuchen Tu1, Hui Huang1, Tianyang Hao1
1SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, School of Environment, South China Normal University, Guangzhou, 510006, China.
Journal of environmental management
|February 7, 2026
概括
来自使用干式烟气脱硫 (FGD) 的钢铁厂的污染是一个重大的环境问题. 这项研究揭示了FGD副产品中的是高度流动的,比以前理解的带来更大的生态风险.
科学领域:
- 环境科学 环境科学
- 工业生态学 工业生态学
- 地质化学 地质化学
背景情况:
- (Tl) 污染是一个主要的环境风险,其主要来源是钢铁行业.
- 在钢铁厂内干燥烟气脱硫 (FGD) 过程中Tl的行为尚不清楚.
研究的目的:
- 为了在一个钢厂中进行Tl的第一个物质流量分析 (SFA),使用干FGD.
- 调查与干燥的FGD副产品相关的TI相变机制和环境风险.
主要方法:
- 综合现场采样和化学分析.
- 物质流分析 (SFA) 和热力学模拟.
- 顺序提取以确定副产品中的TI流动性.
主要成果:
- 总的 Tl 输入/输出流量为 3325.50 和 3295.11 mg/t 粗钢.
- 焦炭和循环烧结头粉是主要的TI输入来源.
- 干燥的FGD副产品中的Tl主要以高度移动和生物可利用的可交换分数 (> 50%) 为主,增加了漏和生态风险.
结论:
- 钢铁厂的干燥FGD会产生独特的TI驱动因素,并增加环境风险.
- 结果为钢铁行业的有针对性的TI污染控制和可持续废物管理提供了关键的见解.
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