对于MSWI飞灰的新型经济高效的富氧融方法
Yukun Liu1, Bo Li2, Xiaoli Chai1
1College of Environmental Science and Engineering, Tongji University, Shanghai, China.
Journal of the Air & Waste Management Association (1995)
|November 15, 2023
概括
本研究提出了一种新的,具有成本效益的方法,用于化城市固体废物焚烧 (MSWI) 飞灰,使用现场产生的生物气. 生产的沼气足以用于富含氧气的融过程,有效地玻璃化飞灰和固定重金属.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 城市固体废物焚烧 (MSWI) 产生飞灰,这是一种需要安全处置的危险废物.
- 传统的飞灰化技术往往是昂贵的,能源密集的.
- 来自MSWI工厂的液含有可转化为沼气的有机物质.
研究的目的:
- 为MSWI飞灰开发一种新的,具有成本效益的富氧融工艺.
- 利用MSWI液产生的生物气作为飞灰化的燃料来源.
- 评估这种生物气燃料融战略的技术可行性和有效性.
主要方法:
- 使用X射线光 (XRF) 分析的飞灰组成.
- 生物气的产量和消耗是基于液数据和融热平衡计算的.
- 为实验试验建立了试点规模的富含氧气的化平台.
- 使用X射线衍射 (XRD) 和浸出毒性测试评估的玻璃化和重金属固定.
主要成果:
- 从MSWI液中生产生物气体足以满足富含氧的飞灰化的需求.
- 试点测试证明了飞灰的有效化和玻璃化.
- XRD分析证实,废渣符合玻璃状物质的技术要求.
- 漂水试验显示,重金属在渣矩阵中被固化得很好.
结论:
- 富含氧气的生物气融策略在技术上是可行的,并且对MSWI飞灰具有成本效益.
- 这种方法为飞处理提供了可持续的解决方案,减少了环境风险.
- 该技术显示出在MSWI工厂中广泛应用的巨大潜力,特别是在中国.
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