This study introduces an environmentally friendly process for recovering zinc (Zn) and copper (Cu) from municipal solid waste incineration (MSWI) fly ash using ammonium chloride leaching and ammonia removal. The leaching rates for Zn and Cu were 54.39% and 86.23%, respectively, with total recovery rates reaching 52.21% and 85.28%, respectively. The recovered precipitate demonstrated significant Zn (33.62%) and Cu (14.19%) contents, making it ideal for metal smelting. The ammonium leaching process also showcased effective reduction and dechlorination effects on the fly ash. The treated fly ash had a reduced mass of only 30.63% of the original, and chlorine content decreased from 26.23% to 0.84%. The results of this study support the sustainable utilization of MSWI fly ash by facilitating valuable resource recovery and promoting its conversion into construction materials.

中文翻译：

---

氨浸脱氨一体化从城市生活垃圾焚烧飞灰中回收锌、铜

本研究介绍了一种利用氯化铵浸出和氨去除从城市固体废物焚烧 (MSWI) 飞灰中回收锌 (Zn) 和铜 (Cu) 的环保工艺。锌和铜的浸出率分别为54.39%和86.23%，总回收率分别达到52.21%和85.28%。回收的沉淀物显示出显着的 Zn (33.62%) 和 Cu (14.19%) 含量，使其成为金属冶炼的理想选择。氨浸工艺还表现出对飞灰的有效还原和脱氯效果。处理后的粉煤灰质量仅减少了原来的30.63%，氯含量由26.23%下降到0.84%。这项研究的结果通过促进有价值的资源回收并促进其转化为建筑材料，支持垃圾焚烧飞灰的可持续利用。