College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi, 712 100, China.
Centre for Research in Emerging Tropical Diseases (CRET-D), Department of Zoology, University of Calicut, Malappuram, Kerala, India.
Environ Pollut. 2023 Sep 15;333:122113. doi: 10.1016/j.envpol.2023.122113. Epub 2023 Jun 26.
Microplastics (MPs) as a kind of emerging contaminants, widely exists in various kinds of medium, sewage sludge (SS) is no exception. In the sewage treatment process, a large number of microplastics will be deposited in SS. More seriously, microplastics in sewage sludge can migrate to other environmental media and threaten human health. Therefore, it is necessary to remove MPs from SS. Among the various restorations, aerobic composting is emerging as a green microplastic removal method. There are more and more reports of using aerobic compost to degrade microplastics. However, there are few reports on the degradation mechanism of MPs in aerobic composting, hindering the innovation of aerobic composting methods. Therefore, in this paper, the degradation mechanism of MPs in SS is discussed based on the environmental factors such as physical, chemical and biological factors in the composting process. In addition, this paper expounds the MPs in potential hazards, and combined with the problems in the present study were studied the outlook.
微塑料（MPs）作为一种新兴污染物，广泛存在于各种介质中，污水污泥（SS）也不例外。在污水处理过程中，大量的微塑料会沉积在 SS 中。更严重的是，污水污泥中的微塑料可以迁移到其他环境介质中，威胁人类健康。因此，有必要从 SS 中去除 MPs。在各种修复方法中，好氧堆肥作为一种绿色的微塑料去除方法正在兴起。越来越多的报道使用好氧堆肥来降解微塑料。然而，关于好氧堆肥中 MPs 的降解机制的报道很少，这阻碍了好氧堆肥方法的创新。因此，本文基于堆肥过程中的物理、化学和生物等环境因素，讨论了 SS 中 MPs 的降解机制。此外，本文阐述了 MPs 的潜在危害，并结合目前研究中存在的问题进行了展望。
