家用净水器对饮用水中微塑料净化效率的研究
Research on the Purification Efficiency of Microplastics in Drinking Water Using Household Water Purifiers
李宁 1庄棪 1朱南 1葛冰洋 1王丹 1徐力智 1仝大伟1
作者信息
- 1. 南京市产品质量监督检验院(南京市质量发展与先进技术应用研究院),江苏 南京 210009
- 折叠
摘要
通过搭建微塑料净化效率试验装置,采用微塑料显色、红外光谱表征的定性方法以及颗粒计数的定量方法,探究了不同家用净水器对饮用水中不同粒径微塑料的去除效能.结果表明,微滤净水器(PP棉芯)、超滤净水器以及反渗透净水器对 13 μm以上的塑料微粒都具有良好的去除效能,去除率＞99.9%;前置过滤器的去除效能取决于其过滤精度,当微塑料粒径小于前置过滤器的滤网孔径时,过滤效果较差,去除率只有 3.7%.微塑料颗粒对水的pH值和电导率值基本没有影响,但对水的浑浊度有较大影响.
Abstract
By constructing a microplastic purification efficiency testing device and using qualitative methods such as microplastic color development and infrared spectroscopy characterization,as well as quantitative methods such as particle counting,the removal efficiency of different household water purifiers on microplastics with different particle sizes in drinking water was investigated.The results show that microfiltration water purifiers(PP cotton core),ultrafiltration water purifiers,and reverse osmosis water purifiers have good removal efficiency on 13 μm microplastic,with a removal rate exceeds 99.9%;the removal efficiency of the pre filter depends on its filtration accuracy.When the particle size of microplastics is smaller than the pore size of the pre filter,the filtration effect is poor,with a removal rate of only 3.7%.Microplastic particles have no effect on the pH value and conductivity value of the water,but have a greater effect on the turbidity of the water.
关键词
净水器/微塑料/净化效率Key words
water purifier/microplastics/purification efficiency引用本文复制引用
基金项目
南京市市场监督管理局科技项目(2023)(Kj2023009)
出版年
2024
NETL
NSTL
万方数据