影响水分系统中微塑料和纳米塑料出水的因素
Amina Rayan Hammodat1, Shumayal Nassar1, Md Maruf Mortula1
1American University of Sharjah, University City, 26666, Sharjah, United Arab Emirates.
水分系统中的塑料管道可以出微塑料和纳米塑料. 基本的pH值和显著增加了颗粒的漏,聚乙烯是发现的最丰富的材料.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 公共卫生 公共卫生
背景情况:
- 水分系统 (WDS) 必须确保水质.
- 塑料管道中的微塑料 (MP) 和纳米塑料 (NP) 由于潜在的健康影响,越来越令人担忧.
- 需要进行研究,以了解影响WDS塑料颗粒漏的因素.
研究的目的:
- 调查在模拟的WDS中,从塑料管道中出国会议员和国民议员的泄露情况.
- 为了确定pH的影响,自由的度,管道材料,以及MP/NP漏的时间.
主要方法:
- 一个管道循环网络被用来模拟一个WDS.
- 四个参数 (pH,,管道材料,时间) 被系统地改变.
- 泄露的国会议员和国民党员被量化和分析.
主要成果:
- 检测到各种形状和大小的MP和NP.
- 在基本的pH值水平下,发生了更高的颗粒出.
- 在剂量和pH (p=0.000),剂量和管道材料 (p=0.038) 之间发现了显著的相互作用.
- 聚乙烯 (PE) 管道泄露的颗粒最多,其次是聚烯随机共聚合物 (PPR) 和聚乙烯 (PVC).
- 随着时间的推移,颗粒物液减少.
结论:
- 水的化学 (pH,) 和管道材料显著影响WDS中的MP/NP漏.
- 与PPR和PVC相比,PE管道的漏率更高.
- 进一步的研究是有必要的,以减轻塑料颗粒释放到饮用水.
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