基于机器学习模型,通过泡分离从污染水中去除PFAS的动态分析
Xin Liu1, Yanyan Liang1, Libin Yang1
1State Key Laboratory of Water Pollution Control and Green Resource Recycling, Tongji University, Shanghai, 200092, China.
Environmental research
|September 24, 2025
概括
机器学习,特别是XGBoost,优化了泡分离,以去除持久的per-和多醇基物质 (PFAS). 该PFAS-XGB模型确定了空气化时间和PFAS属性等关键因素,以实现有效的环境修复.
科学领域:
- 环境科学 环境科学
- 化学工程是化学工程的重要组成部分.
- 数据科学数据科学数据科学
背景情况:
- 和多醇基物质 (PFAS) 是持久的全球环境污染物,具有已知的毒性.
- 泡分离 (FS) 是一种有希望的,具有成本效益的 PFAS 清除补救技术.
- 由于参数之间的复杂相互作用,FS效率是高度可变的.
研究的目的:
- 开发一个预测模型,以优化PFAS修复中的泡分离效率.
- 通过机器学习识别影响PFAS去除的关键因素.
- 建立一个数据驱动的框架,以提高FS的性能.
主要方法:
- 对六种机器学习 (ML) 模型进行评估,以预测PFAS清除效率.
- 开发了一种改进的极端梯度增强 (XGB) 模型,称为PFAS-XGB.
- 分析模型解释和各种因素的因果贡献.
主要成果:
- 极端梯度增强 (XGB) 证明了最高的预测性能 (R2).
- PFAS-XGB模型简化了输入变量,提高了预测效率.
- 气化时间和PFAS分子量被确定为去除效率的关键决定因素.
- 操作条件 (56.8%) 的影响最大,其次是PFAS特性 (21.9%),表面活性剂 (16.8%) 和金属激活剂 (4.5%).
结论:
- 机器学习为优化PFAS修复中的泡分离提供了一个强大的框架.
- 操作参数是FS效率的主要驱动因素,但表面活性剂和金属激活剂的影响是显著的.
- 该研究为通过数据驱动优化改进PFAS清除策略提供了可操作的见解.
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