相关实验视频

Updated: May 5, 2026

Sampling, Identification and Characterization of Microplastics Release from Polypropylene Baby Feeding Bottle during Daily Use

Sampling, Identification and Characterization of Microplastics Release from Polypropylene Baby Feeding Bottle during Daily Use

Published on: July 24, 2021

在不同模拟环境下从两种典型的轮胎微塑料中释放重金属和中国的生物可用性评估

Zhuanxi Luo¹, Ning Wang¹, Xinyi Zhou¹

¹College of Chemical Engineering, Huaqiao University, Xiamen, 361021, China.

Environmental pollution (Barking, Essex : 1987)

|July 10, 2025

概括

轮胎碎片和回收轮胎碎片中的重金属存在风险. 来自中国的材料中的.

科学领域:

环境科学环境科学
地质化学地质化学
材料科学材料科学材料科学

背景情况:

关于重金属 (HM) 从轮胎维修抛光碎片 (TRD) 和回收轮胎碎片 (RTC) 的释放和生物利用度的数据有限.
轮胎磨损颗粒是一个重要的环境污染物,需要研究它们的化学行为.

研究的目的:

在模拟酸雨和海水条件下调查TRD和RTC的HM释放.
评估来自中国不同地区的TRD和RTC中HM的生物可用性.
识别轮胎衍生材料中与HM相关的潜在环境风险.

主要方法:

从四个轮胎品牌和人工草中准备了模拟的TRD和RTC样本.
在不同的pH值和盐度条件下研究了HM释放,模仿酸雨和海水.
使用可溶性生物可用性研究联盟 (SBRC) 方法评估生物可用性.

主要成果:

与南方地区相比,中国北部的TRD和RTC中发现了更高的HM含量 (Zn,As,Cd).
酸性条件 (低 pH) 增加了 Zn 和 Cd 的释放,但减少了 As 的释放.
盐水条件 (高盐度) 增强了TRD和RTC的HM释放.
是不可生物利用的,的生物利用率很低,而的生物利用率很高.
来自中国北部的RTC显示,由于金属含量和老化更高,HM释放量更大.

结论:

在TRD和RTC中含有的具有很高的生物可用性和潜在风险,特别是在来自中国北部的材料中.
像pH值和盐度这样的环境因素显著影响轮胎衍生材料中的HM释放.
了解HM释放和生物可用性对于评估轮胎微塑料对环境的影响至关重要.

关键词:

生物可用性生物可用性金属金属金属回收轮胎碎片的回收使用轮胎维修抛光碎片的抛光碎片

更多相关视频

Separation and Identification of Conventional Microplastics from Farmland Soils

Separation and Identification of Conventional Microplastics from Farmland Soils

Published on: March 21, 2025

Quantification of Polybutylene Adipate Terephthalate-based Micro- and Nano-plastics from Soil Using Proton Nuclear Magnetic Resonance Spectroscopy

Quantification of Polybutylene Adipate Terephthalate-based Micro- and Nano-plastics from Soil Using Proton Nuclear Magnetic Resonance Spectroscopy

Published on: June 6, 2025

相关概念视频

Bioplastics

Bioplastics

Bioplastics derived from microbial processes present a sustainable alternative to conventional petroleum-based plastics. Among these, polyhydroxyalkanoates (PHAs), particularly polyhydroxybutyrates (PHBs), have emerged as prominent candidates due to their biodegradability and biocompatibility. These polymers are synthesized by a variety of bacteria, such as Cupriavidus necator and Pseudomonas putida, which naturally accumulate PHAs as intracellular carbon and energy reserves, especially under...

Microbial Bioremediation of Plastics

Microbial Bioremediation of Plastics

Polyethylene terephthalate (PET) is a synthetic polymer widely utilized in the packaging industry, particularly for bottles and containers. Due to its chemical stability and durability, PET accumulates in the environment, contributing significantly to plastic pollution. It comprises repeating units of terephthalic acid and ethylene glycol, resulting in a semi-crystalline structure that is resistant to natural degradation processes.A notable breakthrough in plastic biodegradation came with the...