飞灰水洗废水协同处置含氟工业废水的控制方法、系统

By using a feedforward and feedback model control algorithm and a step function lookup table, the dosing ratio of fly ash washing wastewater and fluoride-containing industrial wastewater is dynamically adjusted, solving the problems of high equipment investment and high operating costs in existing technologies. This achieves coordinated resource disposal and energy conservation, ensures stable effluent quality, and improves the system's operating efficiency and economy.

CN121325795BActive Publication Date: 2026-07-17HALO ZHICHUANG ENVIRONMENTAL PROTECTION EQUIPMENT (JIANGSU) CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HALO ZHICHUANG ENVIRONMENTAL PROTECTION EQUIPMENT (JIANGSU) CO LTD
Filing Date
2025-10-29
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, fly ash washing wastewater and fluoride-containing industrial wastewater are treated independently, resulting in high equipment investment, high operating costs, and unstable water quality, failing to achieve coordinated resource disposal and energy conservation.

Method used

A feedforward and feedback model control algorithm is adopted to dynamically adjust the dosing ratio and flow rate of fly ash wastewater and fluoride-containing wastewater by real-time monitoring and calculation of calcium and fluoride ion concentrations in wastewater. The composite control algorithm realizes in-situ utilization of resources, simplifies the chemical reaction kinetic model to a step function lookup table operation, and integrates safety interlocks and acid-base control.

Benefits of technology

It has achieved the co-treatment of fly ash washing wastewater and fluoride-containing industrial wastewater, reduced equipment investment and energy consumption, ensured stable effluent quality, improved operating efficiency and economy, reduced sludge production, and realized system automation and long-term unattended operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明涉及飞灰处理及工业废水处理技术领域,尤其是一种飞灰水洗废水协同处置含氟工业废水的控制方法、系统。该控制方法通过前馈+反馈复合控制算法,循环执行以下步骤:采集飞灰废水与含氟废水的离子浓度、温度及pH值;基于温度与pH查询C‑T‑TP表确定离子目标浓度及经历时间;计算混凝箱的前馈离子残余量与产水暂存箱的反馈离子残余量;根据残余量比较结果决策本次废水投加量;最后将投加量转化为实时流量目标值,通过查询频率‑流量曲线并结合PID控制精准调节进水动力泵转速;相应系统包括中央控制单元及与之连接的废水投加、反应与监测、外部协同等单元。本发明实现了飞灰水洗、含氟工业废水的协同处置,具有投加精准、运行稳定、节能降耗的优点。
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