Water Treatment Control Using TOC and Organics Feedback
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Solution Overview
Problem
Existing water treatment systems struggle with inconsistent and inefficient removal of Total Organic Carbon (TOC), particularly when using low-pressure UV oxidation devices, leading to contaminated treated water and increased power consumption due to excessive irradiation and additives.
Innovation Solution
A water treatment system with multiple devices and a controller that measures TOC and specific organic matter concentrations, adjusting operating conditions such as UV irradiation dose and oxidizer addition based on real-time measurements to ensure consistent and efficient TOC removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If UV irradiation dose is increased to remove persistent TOC, then TOC removal efficiency is improved, but power consumption increases
Solution Approach 1:
The patent implements dynamic control of UV irradiation dose based on real-time TOC measurements. The system adjusts the UV irradiation amount according to the detected TOC levels, using higher doses only when persistent TOC is detected and lower doses when TOC levels are already low, thereby optimizing power consumption while maintaining effective TOC removal
Solution Approach 2:
The system incorporates a feedback mechanism where TOC concentration is continuously monitored and the UV irradiation dose is adjusted accordingly. The control unit receives TOC measurement data and automatically modifies the UV irradiation parameters to achieve optimal removal efficiency without excessive energy consumption
2Reliability
If oxidizer addition amount is increased to enhance oxidation, then TOC decomposition is improved, but operating cost increases
Solution Approach 1:
The patent implements dynamic adjustment of oxidizer addition based on real-time TOC measurements. The system varies the oxidizer dosage according to the detected TOC levels and the specific type of organic matter present, applying higher amounts only when necessary for effective decomposition and reducing amounts when TOC levels are already low, thereby optimizing operating costs
Solution Approach 2:
The system changes the concentration parameter of oxidizer based on TOC measurements. By adjusting the oxidizer concentration according to the detected TOC levels and organic matter characteristics, the system achieves effective TOC decomposition while minimizing oxidizer consumption and operating costs
3Stability of the object's composition
If UV irradiation is applied continuously to ensure consistent TOC removal, then water quality consistency is improved, but energy consumption increases
Solution Approach 1:
The patent implements periodic or on-demand UV irradiation based on TOC measurements rather than continuous operation. The system activates UV irradiation when TOC levels indicate the need for treatment and reduces or stops irradiation when TOC levels are already low, maintaining water quality consistency while reducing overall energy consumption
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Achieves consistent and efficient removal of TOC by controlling UV irradiation and oxidizer addition, reducing contamination and power consumption.
Implementation Method 1
a typical example of such a method is the use of a UV oxidation process to decompose and remove organic matter
Implementation Method 2
a technique is being considered for accelerating oxidation of TOC in treated water by adding a sulfur compound containing peroxide groups to the water to be treated and subsequently irradiating the water with ultraviolet light
Data Source
AI summary
A water treatment system including: a water treatment facility equipped with a plurality of water treatment devices to treat treated water, a water treatment management device to which is supplied treated water that flows to any of the water treatment devices, and a controller that controls operating conditions of the water treatment devices. The water treatment management device includes a TOC measurement unit that measures the TOC concentration of the water flowing through the water line of the water treatment management device and a specific organics measurement unit that measures the specific organics concentration in the water flows through the water line of the water treatment management device. The controller controls operating conditions of the water treatment devices based on the TOC concentration measured by the TOC measurement unit and the specific organics concentration measured by the specific organics measurement unit.