无害处理和资源利用焚烧飞灰通过综合水洗和低温热分解:一个全面的研究
Jun Zhang1,2, Xiaohan Wang1, Linli Liu1,2
1Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment of China, Nanjing, People's Republic of China.
Environmental technology
|January 9, 2026
概括
本研究介绍了一种水洗和低温热分解工艺,用于处理危险的焚烧飞灰,有效去除二氧化物和减少重金属漏. 然后,经过处理的灰被重新利用成耐用的空洞,促进循环经济原则.
科学领域:
- 环境工程 环境工程
- 废物管理 废物管理
- 材料科学 材料科学 材料科学
背景情况:
- 焚烧飞灰是一种含有重金属,化物和二氧化物的危险废物.
- 垃圾填埋等传统的处置方法对环境构成风险.
- 高能耗的工艺往往与飞处理有关.
研究的目的:
- 评估一项用于焚烧飞灰处理的全面"水洗+低温热分解 (LTD) "工艺.
- 为了优化去除二氧化物和重金属稳定的参数.
- 评估从经过处理的飞灰中回收资源的潜力.
主要方法:
- 冲洗参数 (时间,固体/液体比,pH,温度) 的基板规模优化.
- 优化低温热分解 (LTD) 条件 (温度,时间).
- 全面实施和材料利用测试.
主要成果:
- 实现了99.5%的二氧化物去除,将水平从440.26 ng TEQ/kg降至2.02 ng TEQ/kg.
- 在全面运行时,证明了重金属漏的显著减少.
- 成功地生产了符合工业标准的晶盐和由经过处理的灰制成的空心 (MU 10.0).
结论:
- 集成的洗水+LTD技术为危险飞排毒提供了可扩展和有效的解决方案.
- 这种方法可以使资源回收,将废物转化为有价值的产品,如.
- 该技术通过提供垃圾填埋的替代方案来支持环境可持续性和循环经济目标.
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