Water Treatment Chemical Dosing Control With Predictive Optimization
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Solution Overview
Problem
Existing methods for chemical dosing in seawater desalination plants rely on sampling experiments and operator knowledge, making it difficult to control chemical application in real-time, especially with varying feed water conditions, which can lead to inefficient chemical usage and suboptimal water treatment outcomes.
Innovation Solution
A chemical dosing optimization apparatus and method that utilizes real-time data analysis through a water treatment model to predict the state of treated water and calculate the minimum required chemical dosage, ensuring the water treatment process remains within a normal range while minimizing chemical costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If real-time data analysis through water treatment model is implemented, then chemical dosing precision is improved, but device complexity increases
Solution Approach 1:
The system performs preliminary actions by pre-training water treatment models with historical data and pre-calculating optimal dosing strategies. The model generation part trains models offline using past operational data, and the chemical dosing optimization part pre-computes optimal dosages based on predicted water quality states, enabling real-time control without complex runtime computations.
Solution Approach 2:
The patent introduces an intermediary water treatment model that mediates between raw sensor data and chemical dosing control. The model acts as a bridge, translating complex water quality parameters into optimized dosing recommendations, thereby simplifying the control architecture while improving dosing precision through intelligent prediction.
2Loss of substance
If chemical dosage is minimized to reduce costs, then loss of substance is reduced, but reliability of water treatment may deteriorate
Solution Approach 1:
The system dynamically adjusts chemical dosages based on real-time water quality conditions and predicted treatment outcomes. The chemical dosing optimization part continuously modifies dosing recommendations according to current feed water characteristics and model predictions, ensuring minimal chemical usage while maintaining reliable treatment effectiveness through adaptive control.
Solution Approach 2:
The system implements feedback mechanisms where actual water quality measurements are continuously compared with model predictions. The chemical dosing output control part uses this feedback to refine dosing recommendations, ensuring that minimal chemical dosages consistently achieve reliable treatment outcomes by learning from actual system responses.
3Ease of operation
If conventional sampling experiments and operator knowledge are used, then ease of operation is maintained, but productivity and treatment effectiveness deteriorate
Solution Approach 1:
The system enables self-service operation where the water treatment plant automatically performs dosing optimization without requiring operator intervention in sampling experiments. The model generation and chemical dosing optimization parts autonomously analyze data and generate dosing recommendations, freeing operators from manual experimentation while significantly improving treatment effectiveness through data-driven decisions.
Data Source
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AI summary
A chemical dosing optimization apparatus includes a chemical dosing optimization part and a chemical dosing output control part, wherein the chemical dosing optimization part receives real-time data at least from a water treatment plant treating feed water by dosing a chemical and providing a treated water, analyzes the real-time data through a water treatment model in response to receiving the real-time data, derives a prediction value for predicting a state of the treated water of the water treatment plant, and derives a control value based on the prediction value through a controller, such that the control value is to set a minimum of a chemical dosage to be dosed in the feed water while the state of the treated water of the water treatment plant is maintained in a normal range, and wherein the chemical dosing output control part provides the control value to a water treatment control device.