关键词: Influencing factor Key process MPs-contaminated wastewater Treatment performance Treatment wetlands

Mesh : Nitrogen Waste Disposal, Fluid Phosphorus Microplastics Plastics Wetlands Ecosystem Carbon Nutrients

来  源:   DOI:10.1016/j.scitotenv.2024.170654

Abstract:
Microplastics (MPs) are now prevalent in aquatic ecosystems, prompting the use of constructed wetlands (CWs) for remediation. However, the interaction between MPs and CWs, including removal efficiency, mechanisms, and impacts, remains a subject requiring significant investigation. This review investigates the removal of MPs in CWs and assesses their impact on the removal of carbon, nitrogen, and phosphorus. The analysis identifies crucial factors influencing the removal of MPs, with substrate particle size and CWs structure playing key roles. The review highlights substrate retention as the primary mechanism for MP removal. MPs hinder plant nitrogen uptake, microbial growth, community composition, and nitrogen-related enzymes, reducing nitrogen removal in CWs. For phosphorus and carbon removal, adverse effects of MPs on phosphorus elimination are observed, while their impact on carbon removal is minimal. Further research is needed to understand their influence fully. In summary, CWs are a promising option for treating MPs-contaminated wastewater, but the intricate relationship between MPs and CWs necessitates ongoing research to comprehend their dynamics and potential consequences.
摘要:
微塑料(MPs)现在在水生生态系统中普遍存在,促使使用人工湿地(CW)进行修复。然而,国会议员和CW之间的相互作用,包括去除效率,机制,和影响,仍然是需要进行重大调查的主题。这篇综述调查了CW中MP的去除,并评估了它们对碳去除的影响,氮,和磷。分析确定了影响MP去除的关键因素,基质粒径和CWs结构起着关键作用。该综述强调了底物保留是MP去除的主要机制。MPs阻碍植物对氮的吸收,微生物生长,社区组成,和氮相关的酶,减少CW中的氮去除。为了去除磷和碳,观察到MPs对磷消除的不利影响,而它们对碳去除的影响很小。需要进一步的研究来充分了解它们的影响。总之,CW是处理受MP污染的废水的有希望的选择,但是MP和CW之间错综复杂的关系需要进行持续的研究来理解它们的动态和潜在的后果。
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