Abstract：
The mismanagement of consumer-discarded plastic waste (CDPW) has raised global environmental concerns about climate change. The COVID-19 outbreak has generated ∼1.6 million tons of plastic waste per day in the form of personal protective equipment (masks, gloves, face shields, and sanitizer bottles). These plastic wastes are either combustible or openly dumped in aquatic and terrestrial environments. Open dumping upsurges emerging contaminants like micro-nano plastics (MNPs) that directly enter the ecosystem and cause severe impacts on flora and fauna. Therefore, it has become an utmost priority to determine sustainable technologies that can degrade or treat MNPs from the environment. The present review assesses the sources and impacts of MNPs, various challenges, and issues associated with their remediation techniques. Accordingly, a novel sustainable circular model is recommended to increase the degradation efficiency of MNPs using biochemical and biological methods. It is also concluded that the proposed model does not only overcome environmental issues but also provides a sustainable secondary resource to meet the sustainable development goals (SDGs).
摘要：
消费者丢弃的塑料废物(CDPW)管理不善引发了全球对气候变化的环境担忧。COVID-19疫情每天产生约160万吨个人防护设备形式的塑料垃圾(口罩，手套,脸盾,和消毒剂瓶)。这些塑料废物要么可燃，要么公开倾倒在水生和陆地环境中。露天倾倒使新兴的污染物如微纳米塑料（MNPs）直接进入生态系统并对动植物造成严重影响。因此,确定可以降解或处理环境中MNPs的可持续技术已成为当务之急。本审查评估了MNPs的来源和影响，各种挑战,以及与其补救技术相关的问题。因此，一个新的可持续的循环模型被推荐使用生化和生物方法提高MNPs的降解效率。还得出结论，所提出的模型不仅克服了环境问题，而且还提供了可持续的次要资源以满足可持续发展目标（SDG）。
