College of Environment and Safety Engineering, Qingdao University of Science & Technology, Qingdao, 266042, China.
Environ Sci Pollut Res Int. 2021 Sep;28(33):44622-44637. doi: 10.1007/s11356-021-15074-z. Epub 2021 Jul 2.
In the twenty-first century, the increasing demand for electrical and electronic equipment (EEE) has caused its quick update and the shortening of its service life span. As a consequence, a large number of waste electrical and electronic equipment (WEEE) needs to be processed and recycled. As an environmentally friendly method, biometallurgy has received extensive attention in the disposal of WEEE in recent years. Aspergillus niger is an acid-producing fungus with a potential applicability to improve metals' recycling efficiency. This review article describes the latest statistical status of WEEE and presents the latest progress of various metallurgical methods involved in WEEE recycling for metal recovery. Moreover, based on the summary and comparison towards studies have been reported for bioleaching metals from WEEE by A. niger, the bioleaching mechanisms and the bioleaching methods are explained, as well as the effects of process parameters on the performance of the bioleaching process are also discussed. Some insights and perspectives are provided for A. niger to be applied to industrial processing scale.
在二十一世纪，电气和电子设备（EEE）的需求不断增加，导致其快速更新和使用寿命缩短。因此，大量的废弃电气和电子设备（WEEE）需要进行处理和回收。生物冶金作为一种环保的方法，近年来在处理 WEEE 方面受到了广泛关注。黑曲霉是一种产酸真菌，具有提高金属回收效率的潜在适用性。本文综述了 WEEE 的最新统计数据，并介绍了各种冶金方法在 WEEE 回收中用于金属回收的最新进展。此外，基于对黑曲霉从 WEEE 中浸取金属的研究的总结和比较，解释了生物浸出金属的机理和方法，以及工艺参数对生物浸出过程性能的影响。为黑曲霉应用于工业加工规模提供了一些见解和展望。
