Rotary Filter UV Ozone Integration for Effluent Treatment
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Solution Overview
Problem
Existing aqueous effluent treatment devices are expensive, large, and have high operating costs due to the need for multiple electrical systems, including ozone dosing systems, and often require additional disinfection equipment.
Innovation Solution
A compact aqueous effluent treatment device comprising a tank with a rotary filter, UV lamps immersed in the effluent, and photocatalyst elements like titanium oxide or zinc oxide to generate ozone, which disinfects and prevents filter clogging, reducing the need for additional disinfection equipment and optimizing electrical power use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple treatment elements (ozonation reactor, drum filter, UV lamps) are used to treat aqueous effluents, then treatment effectiveness is improved, but device complexity and installation cost increase
Solution Approach 1:
The patent combines filtration and disinfection functions into a single integrated device. The drum filter is equipped with UV lamps directly on its surface, and photocatalyst elements are applied to the filtration surface, merging what were previously separate treatment elements into one unified system that performs both filtration and disinfection simultaneously.
Solution Approach 2:
The drum filter is designed to perform multiple functions: mechanical filtration through the drum surface, UV disinfection of the effluent, and photocatalytic ozone generation. This multi-functional design eliminates the need for separate ozonation reactors and disinfection equipment, reducing overall system complexity while maintaining treatment effectiveness.
2Reliability
If multiple electrical systems (ozone dosing system, UV lamps) are used for treatment, then treatment effectiveness is improved, but operating cost increases
Solution Approach 1:
The photocatalyst elements on the drum filter surface generate ozone through photocatalysis when exposed to UV light, eliminating the need for external ozone dosing systems and their associated electrical consumption. The system uses the UV energy already required for disinfection to simultaneously drive ozone generation, reducing overall energy requirements and operating costs.
Solution Approach 2:
The UV disinfection function and ozone generation function are merged into a single process. The same UV lamps that disinfect the effluent also activate the photocatalyst elements to generate ozone, eliminating the need for separate electrical systems and reducing total energy consumption.
3Device complexity
If a compact design is used to reduce installation cost, then device complexity is reduced, but treatment effectiveness may worsen
Solution Approach 1:
The UV lamps and photocatalyst elements are nested on the surface of the drum filter itself, rather than requiring separate external chambers or reactors. This nested arrangement allows multiple treatment functions to be packed into a compact footprint, reducing installation space and cost while maintaining all necessary treatment capabilities.
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 solution provides an inexpensive and efficient treatment method that minimizes clogging and disinfects effluents effectively, reducing installation and operating costs while maintaining high treatment standards.
Implementation Method 1
at least one catalyst element comprising for example a photocatalyst element such as titanium oxide or zinc oxide, arranged to be illuminated by the UV lamp
Implementation Method 2
UV illumination allows to disinfect the aqueous effluent filtered by the rotary filter as well as the surface of the rotary filter
Data Source
AI summary
Device for treating aqueous effluents comprising:A tank,A rotary filter arranged in the tank to carry out an aqueous effluent filtration operation,At least one UV lamp disposed in the tank so as to be immersed in the filtered aqueous effluent,At least one catalyst element arranged to be illuminated by the UV lamp and fixed in the tank so as to be immersed in the aqueous effluents and/or fixed on the rotary filter.