Knowledge embedding and interpretable machine learning optimize comprehensive benefits for water treatment

IF 11.4 1区 工程技术 Q1 ENGINEERING, CHEMICAL
Yu-Qi Wang, Wenchong Tian, Hao-Lin Yang, Yun-Peng Song, Jia-Ji Chen, Qiong-Ying Xu, Wan-Xin Yin, Le-Qi Ding, Xi-Qi Li, Han-Tao Wang, Ai-Jie Wang, Hong-Cheng Wang
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引用次数: 0

Abstract

Perikinetic and orthokinetic flocculation are the first steps in drinking water treatment plant (DWTP) and affect all subsequent processes. Leveraging multi-stage water quality parameters, we developed a machine learning (ML) framework for coagulation control that incorporates knowledge embedding (KE) through hyper-parametric constraints on threshold water quality, energy consumption, and economic costs. Random forest (RF) has the best performance among the eight methods with a percentage error of 2.53% and a coefficient of determination of 0.9922. The results of the interpretability analysis show that the model can accurately identify the coagulation demand and balance the removal effect with the energy consumption and economic cost. Through real experimental validation and simulation extrapolation, the RF-KE model can reduce turbidity by 16.36% and dosing cost by 9.64%. This framework reduces economic costs while optimizing water quality through KE and interpretability analyses, providing evidence for the safe and reliable application of future models.

Abstract Image

知识嵌入和可解释机器学习优化了水处理的综合效益
循环动力学絮凝和正动力学絮凝是饮用水处理厂的第一步,影响到后续的所有过程。利用多阶段水质参数,我们开发了一个用于混凝控制的机器学习(ML)框架,该框架通过对阈值水质、能源消耗和经济成本的超参数约束结合了知识嵌入(KE)。随机森林(Random forest, RF)在8种方法中表现最好,误差百分比为2.53%,决定系数为0.9922。可解释性分析结果表明,该模型能够准确识别混凝需求,并在去除效果与能耗和经济成本之间取得平衡。通过实际实验验证和仿真外推,RF-KE模型可使浊度降低16.36%,加药成本降低9.64%。该框架降低了经济成本,同时通过KE和可解释性分析优化了水质,为未来模型的安全可靠应用提供了证据。
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来源期刊
npj Clean Water
npj Clean Water Environmental Science-Water Science and Technology
CiteScore
15.30
自引率
2.60%
发文量
61
审稿时长
5 weeks
期刊介绍: npj Clean Water publishes high-quality papers that report cutting-edge science, technology, applications, policies, and societal issues contributing to a more sustainable supply of clean water. The journal's publications may also support and accelerate the achievement of Sustainable Development Goal 6, which focuses on clean water and sanitation.
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