过程组合用于机械共处理城市固体废物处理残留物
Paul Demschar1, Thomas Kremlicka1, Severin Rettinger1
1Chair of Waste Processing Technology and Waste Management, Montanuniversitaet Leoben, Leoben, Austria.
概括
这项研究开发了一种机械生物处理 (MBT) 残留物的机械预处理,使其能够融入废物焚烧 (MSWI) 废渣加工中. 这种方法可以回收有价值的材料,并创造燃料原料,从垃圾填埋场转移大量的废物.
科学领域:
- 废物管理 废物管理
- 环境工程 环境工程
- 材料科学 材料科学 材料科学
背景情况:
- 城市固体废物 (MSW) 管理涉及不同的热回收 (废物焚烧 - MSWI) 和机械生物处理 (MBT) 方法.
- 虽然在MSWI中使用了MBT的有价值的分量,但其处理残留物处理的方式不同;MSWI渣经过加工,但MBT残留物被填埋.
- 在将MBT残留物处理与已建立的MSWI处理基础设施相连接方面存在差距.
研究的目的:
- 开发一种机械预处理工艺,将可用的流从MBT腐烂残留物中分离出来.
- 评估这种分离流是否适合使用现有的MSWI废渣技术进行加工.
- 在残留物处理水平上建立MBT和MSWI之间的联系.
主要方法:
- 开发一种机械预处理工艺,以分离MBT腐烂残留物.
- 评估分离流与已建立的MSWI废渣加工技术的兼容性.
- 回收材料 (金属,玻璃,陶/石头) 和产生的原料 (废弃物燃料,有机材料) 的量化.
主要成果:
- 从MBT残留物中的部分流被成功分离并集成到MSWI废渣加工中.
- 回收率包括1%的金属,7.9%的玻璃和4.3%的陶/石头.
- 产生了5%的高热量废物燃料原料和65.3%的有机材料 (潜在的热解原料),将28.4%的MBT残留物重新整合到材料循环中.
结论:
- 机械预处理可以通过现有的MSWI基础设施将大量MBT腐烂残留物重新整合到材料循环中.
- 这项研究在废物处理层面上建立了MSWI和MBT之间的新联系,促进循环经济原则.
- 开发的过程为填埋MBT残留物提供了一个可持续的替代方案,增强资源回收.
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