Radiant Catalytic Ionization for Non-Contact Liquid Detoxification
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Solution Overview
Problem
Existing radiant catalytic ionization technologies for detoxification and sterilization require direct contact between liquids and photocatalytic materials, posing food safety risks and lacking suitable devices for large-scale liquid treatments.
Innovation Solution
A radiant catalytic ionization detoxification system with a gas-liquid mixer and U-shaped reaction tubes, using FeWO4-rGO composite material and mesh panels coated with photocatalytic materials to generate and replenish Reactive Oxygen Species, ensuring non-contact treatment and efficient detoxification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If liquid is in direct contact with photocatalytic material during detoxification, then treatment effectiveness is improved, but food safety risks increase
Solution Approach 1:
The system divides the treatment process into two separate stages: (1) photocatalytic generation of reactive oxygen species in the gas phase, and (2) gas-liquid mixing where the activated air contacts the liquid. This segmentation prevents direct contact between liquid and photocatalytic material while maintaining treatment effectiveness through intermediate gas-phase activation.
Solution Approach 2:
Air acts as an intermediary medium that carries reactive oxygen species generated by photocatalysis to the liquid material. The air bubble serves as a carrier that transfers the activated oxygen species without requiring direct contact between the liquid and photocatalytic material, thus eliminating food safety risks while maintaining detoxification effectiveness.
2Device complexity
If conventional photocatalytic materials are used, then technology simplicity is maintained, but photocatalytic efficiency is insufficient
Solution Approach 1:
The system employs composite photocatalytic materials (such as TiO2 combined with other materials) that exhibit enhanced photocatalytic activity compared to conventional single materials. This composite approach significantly improves the generation efficiency of reactive oxygen species while maintaining reasonable system complexity.
Solution Approach 2:
The system optimizes key parameters including light source wavelength and intensity, photocatalytic material particle size and distribution, and gas-liquid mixing conditions to maximize photocatalytic efficiency. These parameter adjustments enable high-efficiency detoxification without requiring overly complex system architecture.
3Quantity of substance
If large amount of liquid materials need to be treated, then production requirements are met, but suitable devices are unavailable
Solution Approach 1:
The system employs continuous circulation of liquid through the gas-liquid mixing chamber, ensuring continuous contact with reactive oxygen species-carrying air bubbles. This continuous action enables efficient treatment of large volumes of liquid materials without requiring batch processing or multiple separate devices.
Solution Approach 2:
The system utilizes gas-liquid mixing technology where air bubbles are injected into the liquid stream to create intense interfacial contact zones. This pneumatic-hydraulic approach enables scalable treatment of large liquid volumes through efficient mass transfer, making the device suitable for production-scale applications.
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
The system effectively sterilizes water and removes aflatoxin from edible oils without direct liquid contact, enhancing photocatalytic efficiency and reducing secondary contamination risks, with the FeWO4-rGO composite material exhibiting strong photocatalytic performance.
Implementation Method 1
The core of this technology is the photocatalytic effect, i.e., the absorption of light energy with the help of photocatalytic materials generates electron (e−) and hole (h+) pairs, which are converted into reactive oxygen species (ROS) with strong oxidising power
Implementation Method 2
reactive oxygen species (ROS) with strong oxidising power and participate in the redox reaction of organic matter
Data Source
AI summary
Disclosed is a radiant catalytic ionization detoxification system including a gas-liquid mixer configured to gas-liquid mix air carrying radiant catalytic ionized Reactive Oxygen Species with liquid material to be detoxified, and a reaction tube configured to circulate the mixed gas-liquid mixture. The detoxification system of the present disclosure is applicable to water sterilization or aflatoxin removal in edible oils. The radiant catalytic ionization chamber in the system can provide the system with air containing Reactive Oxygen Species, wherein mesh panels coated with photocatalytic materials are configured inside the chamber body, which configuration not only increases the photocatalytic material content per unit volume, but also expands the light-exposed surface area due to uniform distribution of the photocatalytic materials on the mesh panels. The system uses a U-shaped tube as the reaction tube, and the length of the reaction tube can be freely designed according to the practical detoxification requirements.