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通过凝结化粉从水中去除微塑料:一个环保的解决方案

Wei Gao¹, Aoyun Mo¹, Jie Jiang¹

¹School of Ecological and Environmental Sciences, Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, East China Normal University, Shanghai 200241, China.

The Science of the total environment

|September 4, 2023

概括

阴离子改性粉 (CS) 为从水中去除微塑料 (MP) 提供了一个环保的解决方案. 这种生物凝结剂甚至在自然水样中实现了显著的MP去除率,显示了可持续净水的巨大潜力.

科学领域:

环境科学环境科学
绿色化学绿色化学
水处理处理水的方法

背景情况:

微塑料 (MP) 污染对全球水生生态系统构成重大威胁.
目前用于删除MP的方法往往缺乏效率或对环境造成负担.
迫切需要可持续且具有成本效益的解决方案来缓解PM污染.

研究的目的:

引入化改性粉 (CS) 作为一种新型,环保的生物凝固剂,用于从水中去除微塑料.
评估CS在各种条件下去除微塑料的有效性,包括不同的MP特性和水化学成分.
评估CS在同时去除微塑料和有机污染物的潜力.

主要方法:

用不同程度的替代物合成和表征阴基改性粉 (CS).
通过各种参数对CS进行微塑料去除的性能评估:MP大小,类型,老化,水pH值,以及天然水成分 (高粘土,湿酸) 的存在.
调查表面活性剂 (Tween 20, cetyltrimethylammonium bromide) 对CS的效率的影响,并评估CS用于共去除微塑料和.

主要成果:

CS证明了有效的微塑料去除,聚乙烯颗粒的平均速率为65.33%.
对于更大,更密集和更老的微塑料,去除效率更高.
在广泛的pH范围内,CS保持一致的性能,但在高粘土或酸的存在下效率较低. 表面活性剂的作用各不相同,其中Tween 20增强和 cetyltrimethylammonium bromide 抑制去除. 实现了南的同时去除.
在长江三角洲的自然水中应用,平均去除率为60.13%±3.15%.

结论:

阳离子改性粉 (CS) 是一个有前途的,环保的生物凝固剂,用于从水中去除微塑料.
作为一个具有成本效益和可持续的解决方案,CS具有显著的潜力,可以缓解水生环境中的微塑料污染.
该研究强调了CS在水处理中的多功能性,包括它去除辅助污染物的能力.

关键词:

修改为阴离子的粉.生态地区生态地区生态地区微塑料是一种微塑料.移除移除移除移除可持续的解决方案可持续的解决方案水水水水水,这是一个很好的方法.

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