Coagulation intelligent control method and system based on fractal dimension feedback

By monitoring the fractal dimension of flocs and the influent flow rate in real time, a composite control strategy was constructed, which solved the problem of the inability to dynamically adjust the flocculant dosage, achieved rapid response and high-precision flocculant dosing, and improved the control effect of the water treatment system.

CN122403597APending Publication Date: 2026-07-17青岛润扬环境科技有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
青岛润扬环境科技有限公司
Filing Date
2026-05-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing water treatment technologies, the fixed control of flocculant dosage cannot adapt to dynamically changing operating conditions, resulting in poor coagulation effect or waste of reagents. Furthermore, the detection of turbidity in the produced water has a time lag, affecting the control accuracy.

Method used

A fractal dimension-based intelligent control method for coagulation dosing is adopted. The fractal dimension is calculated by real-time monitoring of the morphological characteristics of flocs, and the feedforward compensation and initial dosage are generated by combining the influent flow rate. A cascade control structure is constructed to achieve rapid response and precise adjustment of flocculant dosing.

Benefits of technology

It significantly improves the control precision and dynamic response speed of the coagulation process, overcomes the lag in turbidity of the product water, enhances the ability to suppress fluctuations in influent flow rate, and ensures stable effluent quality.

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Abstract

本申请提供一种基于分形维数反馈的混凝加药智能控制方法及系统,涉及水处理技术领域,方法包括:获取絮凝池中絮体的原始图像序列并进行预处理,确定絮体目标区域,提取形态特征参数并计算絮体的分形维数。获取产水浊度值,计算其与标准浊度值的第一差值,根据第一差值调整标准分形维数生成目标分形维数;计算实际分形维数与目标分形维数的第二差值,根据第二差值生成絮凝剂的初始投加量;计算原水进水流量值与基准流量值的第三差值,根据第三差值生成絮凝剂的前馈补偿量;结合前馈补偿量和初始投加量生成絮凝剂的目标投加量。本申请具有的技术效果是:提高混凝过程的控制精度。
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