Chemical Input Determination for Seawater Desalination
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Solution Overview
Problem
Conventional DAF processes in seawater desalination plants face challenges in accurately determining the optimal chemical input due to reliance on operator experience, leading to potential over or underuse of chemicals, which is influenced by water temperature and turbidity changes.
Innovation Solution
An apparatus and method using a multiple regression equation derived from environmental, chemical, and water-quality information to calculate the required chemical concentration, specifically incorporating current and future turbidity and temperature data to determine the precise chemical input needed to achieve target water quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If chemical input amount is determined based on operator experience, then ease of operation is improved, but manufacturing precision deteriorates
Solution Approach 1:
The patent replaces the manual operator experience-based chemical input determination with an automated calculation system using multiple regression equations. The system automatically processes water quality parameters (turbidity, temperature) and calculates optimal chemical dosages, eliminating reliance on human experience while achieving precise chemical input control.
2Reliability
If chemical input amount is increased to ensure target water quality, then reliability is improved, but loss of substance worsens
Solution Approach 1:
The patent uses multiple regression equations that incorporate water quality parameters (turbidity, temperature) to dynamically calculate optimal chemical dosages. By changing the approach from fixed/excessive dosing to parameter-based precise dosing, the system ensures target water quality is met while minimizing chemical waste through accurate calculation of required amounts.
3Manufacturing precision
If chemical input is optimized based on environmental conditions, then manufacturing precision is improved, but device complexity worsens
Solution Approach 1:
The patent implements a multi-functional control system that simultaneously performs multiple tasks: receiving water quality data, calculating chemical dosages using regression equations, and controlling chemical injection. This universal system achieves precise chemical input optimization while consolidating functions into a single integrated apparatus, managing complexity through functional integration.
Data Source
AI summary
An apparatus and method for determining an amount of chemical input, and more particularly to an apparatus and method for determining the amount of a chemical to be added, which is necessary to achieve target water quality, wherein a required chemical concentration can be accurately calculated based on the temperature of the water and the target turbidity of the water includes an information-receiving unit configured to receive at least one of environmental information, chemical information, and water-quality information of the water present in a specific area and a chemical input determination unit configured to derive a multiple regression equation based on the received environmental information, chemical information, and water-quality information and to determine the future input of a chemical that is added to satisfy a target turbidity of the water present in the specific area based on the multiple regression equation.