UVC Water Purifier Baffles and Feedback Control
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Solution Overview
Problem
Current water purification systems are inadequate for large-scale use in developing countries due to high costs, limited flow rates, and the need for expensive chemicals or complex infrastructure, failing to effectively treat all waterborne pathogens, especially cryptosporidium parvum oocysts, which are resistant to chlorine and require high UV-C irradiation densities.
Innovation Solution
A portable UVC-based water purification system with a novel array of baffles to increase the efficiency of pathogen eradication per unit energy of applied UVC light, incorporating pre- or post-filters for heavy metals and organic compounds, and a closed loop feedback system to monitor and adjust UVC power output, ensuring sufficient disinfection of cryptosporidium parvum oocysts and other pathogens.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If small-scale UVC water purifying systems are used, then pathogen eradication effectiveness is improved, but flow rate is too low to supply large volumes of water
Solution Approach 1:
The system divides the water purification process into multiple chambers with baffles, where each chamber contributes to pathogen eradication. This segmentation allows the system to maintain high effectiveness while processing larger volumes of water through parallel or sequential chamber arrangements.
Solution Approach 2:
The patent introduces a spatial dimension to the purification process by using vertical chambers and strategic baffle placement, allowing water to flow through multiple levels and exposure zones to UVC light, thereby increasing both flow capacity and eradication effectiveness simultaneously.
2Productivity
If large-scale water purification plants are deployed, then water volume capacity is improved, but cost and infrastructure requirements become too high for rural areas
Solution Approach 1:
The system is designed to be universally applicable across different settings by integrating multiple functions into a single unit: UVC pathogen eradication, chemical filtration, physical filtration, and automated monitoring. This multi-functionality eliminates the need for separate infrastructure components, making large-scale capacity achievable without proportionally increasing complexity.
Solution Approach 2:
The patent combines UVC irradiation chambers, filter systems, sensors, and control mechanisms into an integrated purification plant. This merging of components achieves large water volume处理能力 while keeping the overall system manageable and suitable for rural deployment.
3Reliability
If chlorine or iodine is used for water purification, then pathogen eradication is improved, but resistance to cryptosporidium parvum and harmful chemical residues worsen
Solution Approach 1:
The system replaces chemical disinfection methods (chlorine, iodine) with a physical method (UVC irradiation) to eradicate pathogens. This substitution eliminates chemical residues and avoids selecting for resistant pathogens, while maintaining or improving eradication effectiveness through adequate UV dosage and baffle-designed exposure.
Solution Approach 2:
The patent employs UVC radiation as a form of energy that accelerates the breakdown of organic contaminants and pathogens without requiring chemical oxidants. The UVC light directly damages pathogen DNA and promotes decomposition of organic matter, achieving pathogen eradication without harmful chemical byproducts.
4Reliability
If boiling is used for water purification, then pathogen eradication is improved, but energy consumption and heavy metal concentration increase
Solution Approach 1:
The system uses UVC radiation to induce phase changes at the molecular level in pathogen DNA, causing immediate inactivation without requiring thermal phase transitions (boiling). This approach achieves pathogen eradication with minimal energy input compared to heating large volumes of water to boiling temperature.
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 treats a wide range of waterborne pathogens, including cryptosporidium parvum, with reduced energy consumption and no need for expensive chemicals or filters, making it suitable for large-scale use in developing countries, capable of producing safe drinking water for all populations, including vulnerable groups.
Implementation Method 1
an array of baffles to increase the efficiency of eradication of the pathogens in the water per unit energy of applied UVC light
Implementation Method 2
sufficient amounts of UVC power are applied to the water to inactivate the cryptosporidium parvum oocysts
Implementation Method 3
A novel array of baffles to increase the efficiency of eradication of the pathogens in the water per unit energy of applied UVC light
Data Source
AI summary
An Ultraviolet-C (UVC) based portable water purification system employing a novel array of baffles increases the efficiency per unit energy of irradiating UVC light in the eradication of pathogens in the water. Closed loop feedback allows monitoring the application of UVC light power to ensure high levels of pathogen eradication. This system is capable of eradicating a wide range of waterborne bacteria, viruses, protozoa, helminthes, yeast, and mold found in natural freshwater sources worldwide. By adding pre- or post-filters, the system can remove harmful organic compounds, pesticides, inorganic compounds and heavy metals from the water. The system can also be used to eradicate pathogens in fluids other than water. As a feature of this invention, a communications systems that can reach geographically dispersed populations at low cost without the need to install costly wired communications infrastructure is combined with and powered by the water purification system. In one embodiment, a packet radio system is provided to create nodes in a wireless mesh communications system to provide voice, data, video and internet communications using an array of the water purifiers to create a wireless mesh network.