Abstract：
Stormwater is a major contributor to microplastic (MP) pollution in the aquatic environment. Although MPs are associated with many toxicological effects, their levels in stormwater are not regulated. This review compared the effectiveness of different MP removal technologies from stormwater runoff and examined the performance of typical stormwater treatment systems for MP removal to assess possible MP pollution control via stormwater management. Bioretention and filtration systems performed similarly with 84-96% MP removal efficiencies. Despite the limited number of studies that focused on wetlands and retention ponds, preliminary data suggested potential for MP removal with efficiencies of 28-55% and 85-99%, respectively. Despite the higher efficiency of bioretention and filtration systems, their removal efficiency of fibrous MPs was not optimal. Furthermore, wetlands were less effective in removing MPs than retention ponds, although the limited data might lead to an inaccurate representation of typical performances. Therefore, more research is required to arrive at definitive conclusions and to investigate alternative treatment options, such as ballasted sand flocculation, flotation, and biological degradation, and evaluate the effectiveness of bioretention and filtration for MPs <100 μm.
摘要：
雨水是水生环境中微塑料（MP）污染的主要原因。尽管国会议员与许多毒理学作用有关，他们在雨水中的水平不受管制。这篇综述比较了雨水径流中不同MP去除技术的有效性，并研究了典型雨水处理系统去除MP的性能，以评估通过雨水管理进行MP污染控制的可能性。生物滞留和过滤系统以84-96%的MP去除效率类似地进行。尽管针对湿地和滞留池的研究数量有限，初步数据表明，MP去除的潜在效率为28-55%和85-99%，分别。尽管生物滞留和过滤系统的效率更高，它们对纤维状MPs的去除效率不是最优的。此外，湿地去除国会议员的效果不如保留池，尽管有限的数据可能导致典型表现的不准确表示。因此,需要更多的研究才能得出明确的结论，并研究替代治疗方案，如压载砂絮凝，浮选,和生物降解，并评估MPs<100μm的生物滞留和过滤效果。
