The ubiquitous presence of MPs in water bodies presents an escalating concern, as these minuscule plastic particles could ultimately reach humans via the drinking water supply. This study explores the efficacy and underlying mechanisms of removing PE and PVC MPs using Abelmoschus esculentus seeds (commonly known as okra), a natural and environmentally benign coagulant. Through experiments conducted under varying conditions—such as pH level, coagulant dosage, MP concentration, and EC—using the standard method and a Jar test apparatus, the sedimentation rate was assessed. ZP analysis revealed that charge neutralization and bridging cause pivotal in enhancing the removal efficiency of MPs. FESEM and FTIR analyses corroborated the formation of new bonds during the interaction between the MPs and the okra seed-based coagulant. The findings indicate that the optimal parameters for PVC removal were a coagulant dosage of 70 mg/L, a pH of 10, and an MP concentration of 20 mg/L, achieving a removal efficiency of 80.11%. Conversely, for PE, the maximum removal efficiency of 64.76% was realized at a coagulant dosage of 70 mg/L, a pH of 3, and an MP concentration of 20 mg/L. Abelmoschus esculentus seeds offer a practical and eco-friendly option, potentially substituting chemical coagulants, to efficiently eliminate MPs from aquatic environments.

水体中无处不在的塑料颗粒引起了人们日益关注，因为这些微小的塑料颗粒最终可能通过饮用水供应到达人类。本研究探讨了使用黄秋葵种子（俗称秋葵）去除 PE 和 PVC MP 的功效和潜在机制，黄秋葵种子是一种天然且环境友好的凝固剂。通过使用标准方法和罐测试装置在不同条件下（例如 pH 水平、混凝剂剂量、MP 浓度和 EC）进行实验，评估沉降速率。 ZP 分析表明，电荷中和和桥联对于提高 MP 的去除效率至关重要。 FESEM 和 FTIR 分析证实了 MP 与秋葵籽凝结剂相互作用过程中新键的形成。研究结果表明，去除PVC的最佳参数为混凝剂投加量70 mg/L、pH值为10、MP浓度为20 mg/L，去除效率为80.11%。相反，对于PE，在混凝剂用量为70 mg/L、pH为3、MP浓度为20 mg/L时实现了64.76%的最大去除效率。黄秋葵种子提供了一种实用且环保的选择，有可能替代化学混凝剂，以有效消除水生环境中的 MP。