通过旋风式空气漂浮从水中分离微塑料的机制的数值研究
Fangyang Yuan1, Hao Yuan2, Xibin Zhang2
1Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment & Technology, Wuxi 214122, China; School of Mechanical Engineering, Jiangnan University, Wuxi 214122, China; Wuxi General Machinery Works Co. Ltd., Wuxi 214028, China.
Water research
|August 30, 2024
概括
在迷你气旋中的空气浮动有效地从水中去除微塑料. 优化微气泡大小和空气保持是有效分离这些新出现的污染物的关键.
科学领域:
- 环境工程 环境工程
- 流体动力学 流体动力学
- 水处理 处理水的方法
背景情况:
- 微塑料是水生环境中普遍存在的新兴污染物.
- 有效的清除技术对于减轻微塑料污染至关重要.
研究的目的:
- 用气旋式空气漂浮技术对微塑料的去除进行数值研究.
- 分析分离机制并优化过程参数.
主要方法:
- 使用欧勒尔-欧勒尔模型对三相流量的数值建模.
- 对流场,微塑料和微气泡分布的分析.
- 对旋风式空气漂浮分离机制的研究.
主要成果:
- 微泡注射加速了微塑料的迁移和上升运动.
- 空气核心的形成和增长取决于气体的保持.
- 最佳的空气保持和可比的微气泡/微塑料大小对于效率至关重要.
- 上方圆角增强了微塑料的轴向迁移.
结论:
- 旋风式空气漂浮是一种有前途的微塑料去除技术.
- 过程参数,如空气保持量和微气泡大小,需要仔细优化.
- 这项研究为水处理中的微塑料分离技术提供了理论基础.
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