通过联合处理过程有效地去除微塑料:预过和吸附
1College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, 454000, China; State Key Laboratory of Coking Coal Resources Green Exploitation, China Pingmei Shenma Group, Pingdingshan, 467000, China; Engineering Technology Research Center of Coal Resources Comprehensive Utilization, Anhui Province, Anhui University of Science and Technology, Huainan, 232001, China.
Journal of environmental management
|November 28, 2025
概括
使用基于煤炭的改性活性炭 (CMAC) 的新型过吸附工艺有效地去除了95.48%的微塑料 (MP). 这种可持续的方法为废水处理和MP污染控制提供了可扩展的解决方案.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 微塑料 (MP) 污染对环境构成重大威胁,需要创新的去除技术.
- 现有的方法经常在各种MP类型的效率和可扩展性方面扎.
研究的目的:
- 开发和评估一种新的联合过吸附工艺,以有效地去除微塑料.
- 以其在吸附微塑料中的有效性来表征基于煤的改性活性炭 (CMAC).
主要方法:
- 通过碳化,KOH激活和基托浸层涂层从低灰的炭酸盐中合成CMAC.
- 实施使用CMAC和石英砂的联合过吸附系统.
- 使用直角实验优化工艺参数 (床载荷,流速,初始度,pH).
主要成果:
- 联合工艺实现了95.48%的微塑料去除率,明显优于纯净过.
- 在酸性条件下,CMAC表现出正面电荷,增强负电荷MP的静电吸附.
- 最佳条件确定了床载荷作为MP移除效率的最关键参数.
结论:
- 开发的基于CMAC的过吸附工艺为废水中的微塑料清除提供了高效和可持续的解决方案.
- 双重去除机制 (物理过和协同吸附) 促使该过程在各种MP大小和性能方面具有卓越的性能.
- 这项研究为优化使用废物衍生吸附剂的MP去除技术提供了有价值的机械见解.
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