太湖中2-甲基异乙醇的关键触发因素:流速
Huixian Li1, Yuan Xiao2, Xujie Shi3
1State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China; School of Energy and Environment and State Key Laboratory of Marine Environmental Health, City University of Hong Kong, Hong Kong SAR, China.
流速是饮用水中二甲基异二醇 (2-MIB) 峰值的关键驱动因素,峰值发生在特定范围内. 这一发现可以更好地管理味道和气味事件.
科学领域:
- 环境科学 环境科学
- 水质管理水质管理
- 水力动力学就是水力动力学.
背景情况:
- 2-甲基二氧化 (2-MIB) 是全球饮用水污染物之一.
- 识别2MIB峰值的驱动因素对于水安全和管理至关重要.
- 之前的研究缺乏2MIB动态的主要驱动因素.
研究的目的:
- 确定饮用水源中二甲基异二醇 (2-MIB) 峰值的主要驱动因素.
- 将可解释的人工智能 (XAI) 与沉积物运输物理学相结合,以预测2MIB动态.
- 为2MIB事件开发一个预测模型.
主要方法:
- 对7-MIB和环境因素的7年 (2015-2021) 数据集的分析.
- 解释性AI (XAI) 与沉积物运输物理学的整合.
- 开发和验证可解释的多变量长短期记忆 (IMV-LSTM) 模型.
主要成果:
- 流速 (FV) 被确定为触发2-MIB峰值的关键因素.
- 82.7%的2MIB峰值发生在一个关键的FV窗口 (0.118-0.376 m s−1) 中.
- 经验上得出的值与沉积物运动的关键盾牌参数相关,解释了藻类的动员.
结论:
- 流速值通过藻类动员机制来决定2MIB的产生.
- 一个新的IMV-LSTM模型可以在24小时前准确预测2-MIB事件 (R2 = 0.74).
- 基于流速的有针对性的液压管理提供了一种控制味道和气味事件的策略.
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