Predictive Impurity Concentration in Water Treatment Systems
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Solution Overview
Problem
In water treatment systems, there is a challenge in anticipating the water quality at the point of use when the concentration measured by concentration meters exceeds a predetermined value, leading to water with excessive impurities being supplied before detection.
Innovation Solution
A water treatment system that includes a water treatment apparatus and an information processing device, which calculates a predicted value of impurity concentration based on the removal rates of impurities from the water treatment apparatus, allowing for advanced comprehension of water quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If concentration measurement is used to detect water quality, then water quality monitoring is achieved, but water with excessive impurities has already been supplied to the point of use by the time detection occurs
Solution Approach 1:
The system performs preliminary action by calculating the predicted impurity concentration of water to be supplied before it actually reaches the point of use. The concentration calculation unit uses the removal rate and current impurity concentration to predict future water quality, enabling proactive detection and response before contaminated water is delivered to users.
Solution Approach 2:
The system implements beforehand cushioning by establishing a prediction mechanism that cushions against the time delay problem. By predicting impurity concentrations in advance and comparing them against thresholds, the system creates a safety buffer that prevents excessive impurity supply before it can occur, rather than reacting after detection.
2Reliability
If real-time concentration measurement is implemented, then water quality monitoring is achieved, but the system complexity increases due to additional sensors and processing requirements
Solution Approach 1:
The system uses copying by creating a virtual model of water quality through calculation rather than direct physical measurement. The concentration calculation unit computes predicted impurity concentrations based on mathematical models using existing data (removal rates and current concentrations), eliminating the need for additional physical sensors at every monitoring point while maintaining reliable water quality assessment.
Solution Approach 2:
The system implements universality by making the water treatment apparatus perform multiple functions: it simultaneously treats water and calculates predicted impurity concentrations. The information processing device integrates both control and prediction functions, allowing the existing infrastructure to serve dual purposes without requiring separate dedicated monitoring systems.
Data Source
AI summary
Water treatment apparatuses for removing impurities from supplied water and an information processing device are provided. The information processing device, based on the removal rates for removing impurities in the water treatment apparatuses, calculates a predicted value of the concentration of impurities contained in the water supplied from the water to be treatment apparatuses when water currently being supplied is treated by the water treatment apparatuses.