Intelligent Softening Agent Dosing for Variable Water Hardness
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Solution Overview
Problem
Existing methods for industrial wastewater hardness removal are inefficient and imprecise, leading to membrane fouling and substandard salt quality due to fluctuations in water quality and operator variability, with existing systems failing to accurately dose softening agents for varying wastewater compositions.
Innovation Solution
An intelligent dosing control method and system that analyzes inlet water quality, recommends an agent scheme, and employs accurate data calculation and fuzzy data adjustment to precisely dose softening agents, using models like calcium hydroxide, sodium carbonate, and trisodium phosphate, with real-time monitoring and feedback loops to adjust dosages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If PID regulation is used for agent dosing control, then the control system can operate automatically, but the fluctuation of water quality and quantity makes it difficult to converge the agent dosage and meet expected water quality
Solution Approach 1:
The patent implements a feedback mechanism where outlet water quality parameters (hardness, calcium ion, magnesium ion) are continuously monitored and fed back to the control system. This feedback loop enables the system to adjust agent dosage dynamically based on actual treatment results, resolving the contradiction between automatic operation and dosage precision by allowing continuous correction of dosing errors.
Solution Approach 2:
The control system performs self-adjustment by automatically calculating required agent dosage based on inlet water quality, expected outlet quality, and actual treatment outcomes. The system serves itself by eliminating the need for manual intervention in dosage calculation and adjustment, maintaining both automation and precision through computational algorithms that process real-time water quality data.
2Ease of operation
If manual operation is used for agent dosing, then operator flexibility is maintained, but operator variability and quality fluctuations make it difficult to ensure consistent hardness removal effect
Solution Approach 1:
The system replaces manual operator decision-making with automated computational algorithms that calculate optimal agent dosage based on measured water quality parameters. The control system performs self-service by automatically determining dosing strategies without human intervention, eliminating operator variability while maintaining operational flexibility through adaptive algorithms that respond to changing water quality conditions.
Solution Approach 2:
The patent replaces the mechanical/manual dosing control system with an automated control system that uses sensors, processors, and actuators. This substitution eliminates human operator variability and ensures consistent hardness removal by using standardized computational algorithms and real-time data processing, while maintaining ease of operation through automated decision-making.
3Adaptability or versatility
If existing dosing control systems are used for phosphorus removal, then the system can handle simple wastewater composition, but it cannot perform accurate dosing treatment for wastewater with different compositions and contents of impurities
Solution Approach 1:
The control system dynamically adjusts agent dosage calculations based on real-time analysis of inlet water quality parameters. The system adapts to different wastewater compositions by continuously monitoring and processing data on calcium ions, magnesium ions, and other impurities, then adjusting dosing strategies accordingly. This dynamic adaptation enables accurate dosing across varying wastewater conditions while maintaining precision through real-time computational adjustments.
Solution Approach 2:
The patent changes the dosing control parameters based on measured water quality parameters. The system uses inlet water quality data (flow rate, hardness, calcium ion, magnesium ion, alkalinity) to calculate and adjust agent dosage parameters in real-time. This parameter adjustment mechanism enables the system to adapt to different wastewater compositions and maintain dosing accuracy across diverse treatment scenarios.
Data Source
AI summary
The disclosure relates to an intelligent dosing control method, device and system for softening and removing hardness. Based on calculation by the intelligent dosing control method or device for softening and removing hardness of the disclosure, a softening agent dosing scheme can be intelligently recommended, while allowing the dosage adjustment in real time, thereby realizing the real-time and precise dosing of agents throughout the process. The intelligent dosing control system for softening and removing hardness of the disclosure automatic monitors the inlet water quality, and the dosing device can be controlled to perform precise dosing of agents through the calculation by the intelligent dosing control method or device for softening and removing hardness. Based on the monitoring feedback of outlet water quality and then calculation by the intelligent dosing control method and/or device for softening and removing hardness, the agent dosage can be automatically readjusted.