不同粒径城市垃圾焚烧飞灰中重金属形态分析

摘要

城市生活垃圾焚烧处理过程中所含重金属会集中在垃圾焚烧飞灰中排出,且含量较高,因此若要安全处置垃圾焚烧飞灰必须要对其特性进行研究。不同粒径垃圾焚烧飞灰中重金属的含量不完全相同,呈现出一定的变化趋势。重金属的各种形态对其在环境中的迁移和转化也会产生一定的影响。通过分析不同粒径垃圾焚烧飞灰的重金属形态进行研究,可为其安全处理处置提供参考。%In the process of MSW centralized incineration, the heavy metals were discharged in MSWI fly ash with high content. The content of heavy metals in different size of MSWI fly ash were not exactly the same. The different forms of heavy metals had a certain impact in the environment of migration and transformation. Different existing forms of heavy metals in MSWI fly ash can be understood to provide scientific basis for the treatment and utilization of MSWI fly ash.