使用机器学习模型加强城市下水道系统中硫化控制:通过使用增强算法开发一种新的预测模拟方法.
Duc Viet Nguyen1, Miran Seo2, Yue Chen1
1Center for Green Chemistry and Environmental Biotechnology (GREAT), Ghent University Global Campus, Incheon 21985, Republic of Korea; Department of Green Chemistry and Technology, Ghent University; Centre for Advanced Process Technology for Urban Resource Recovery (CAPTURE), Ghent B9000, Belgium.
Journal of hazardous materials
|March 13, 2025
概括
这项研究引入了先进的机器学习,特别是 eXtreme Gradient Boosting (XGBoost),以准确预测下水道系统中硫化的形成. 该模型确定了最大限度地减少这种腐蚀性气体的最佳条件,从而改善了下水道网络管理.
科学领域:
- 环境工程 环境工程
- 废水管理 废水管理
- 计算科学 计算科学
背景情况:
- 污水管网是重要的城市基础设施,但硫化 (H2S) 生产会引起气味和腐蚀.
- 传统模型在H2S预测中与非线性数据作斗争.
- 机器学习为预测复杂的环境数据提供了先进的功能.
研究的目的:
- 开发一种新的机器学习方法,用于预测下水道系统中硫化的形成.
- 为了比较增强和传统机器学习算法的性能,用于H2S模拟.
- 确定最佳的下水道运行参数,以尽量减少H2S的产生.
主要方法:
- 采用了11个机器学习模型,包括4个提升和7个传统算法.
- 利用700多个数据集分析下水道运行参数 (pH,DO,温度,天气,硫酸盐,氨).
- 使用R平方和根平均平方误差 (RMSE) 评估模型性能.
主要成果:
- 极端梯度提升 (XGBoost) 显示出更高的预测效率 (R=0.97,RMSE=0.177 mg/L).
- XGBoost模型成功地预测了各种下水道网络的H2S形成,并与文献数据 (R>0.9) 进行了验证.
- 使用XGBoost模型确定了最小化总硫化物生成的最佳条件.
结论:
- 增强机器学习,特别是XGBoost,对于模拟下水道系统中的非线性H2S度非常有效.
- 开发的模型为预测和控制H2S形成提供了一个强大的工具.
- 这些发现可以加强下水道系统的运营控制和管理,以减轻H2S问题.
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