Medium Pressure UV Lamp for IPNV Inactivation
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Solution Overview
Problem
Current UV disinfection methods using low pressure lamps at 254 nm require high UV doses and electricity to achieve effective inactivation of Infectious Pancreatic Necrosis Virus (IPNV), leading to inefficiencies and increased energy consumption.
Innovation Solution
The use of medium pressure polychromatic UV lamps tuned to emit light in wavelengths between 260 and 400 nm, or specifically between 200 and 245 nm, which are optimized to inactivate IPNV with significantly lower UV doses and electricity, utilizing higher pressures and pure silica synthetic quartz to enhance spectral response and water transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If standard low pressure UV lamps at 254 nm are used to inactivate IPNV, then effective decontamination is achieved, but high electricity consumption is required
Solution Approach 1:
The patent changes the wavelength parameter from 254 nm to a range of 260-400 nm, and changes the pressure parameter from low pressure to medium pressure (1.6-10 bar), resulting in significantly reduced electricity consumption while maintaining or improving IPNV inactivation effectiveness
Solution Approach 2:
The patent employs polychromatic UV light with multiple wavelength components simultaneously acting on the virus, rather than a single wavelength, achieving more efficient inactivation through combined spectral action
2Reliability
If high UV dose is applied to achieve IPNV inactivation, then decontamination effectiveness is improved, but energy consumption increases
Solution Approach 1:
The patent changes the spectral distribution parameters of the UV light source to match the absorption characteristics of IPNV, achieving higher inactivation efficiency per unit UV dose and reducing total energy loss
3Productivity
If medium pressure UV lamps with wavelength range 260-400 nm are used, then IPNV inactivation efficiency is improved, but water transmission may be affected
Solution Approach 1:
The patent applies different wavelength components of polychromatic UV light to different depths or regions of water, optimizing both surface inactivation efficiency and overall water penetration based on local transmission characteristics
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
These optimized UV lamps achieve IPNV inactivation with 3-70 times greater efficiency than standard low pressure lamps, reducing the required UV dose by up to 50% and corresponding electricity usage, while maintaining a high level of disinfection effectiveness.
Implementation Method 1
medium pressure polychromatic UV lamps tuned to emit light in wavelengths between 260 and 400 nm, or specifically between 200 and 245 nm
Implementation Method 2
IPNV inactivation with significantly lower UV doses and electricity
Data Source
AI summary
A method and a system is provided for inactivation of Infectious Pancreatic Necrosis Virus (IPNV) comprising illuminating a liquid containing IPNV with a lamp emitting a continuous broad band of ultraviolet (UV) light. The UV lamp may be “tuned” to optimize IPNV inactivation. The lamp may be a medium pressure UV lamp that emits UV light having wavelength between 200-245 nm and preferably, between 200-220 nm. The pressure of the lamp may be greater than 1.6 bar, 3 bar and preferably is 7 bar. The lamp may be composed of PS (synthetic quartz).