UV Disinfection
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R&D
"A leading company of High-tech engineering"
1. Development of low-energy small-scale photoelectric disinfection water purification system
goal
- Development of a low-energy integrated small-scale water treatment system combining a non-contact multi-wavelength UV disinfection device and a separator system
Research Content
- Development of high-efficiency non-contact multi-wavelength UV sterilizer
- Real-scale integrated simple water treatment system construction and verification
2. Development of motor-driven UV disinfection module
goal
- Pursuing commercialization of developed products by supplementing the quartz tube cleaning device and improving its performance through the application of a motor-driven system
Research Content
- Complement and development of motor-driven (cruise-speed) automatic cleaning device
- Real-time intensity monitoring system development
- Title 22 Validation in California, USA
- First in Korea / 4th verification in the world
- Newly revised and reinforced (about 20% is strengthened compared to the previous one.) Test based on NWRI's 2012-3RD Edition Guideline
- * CDPH: California Department of Public Health (California Department of Public Health)
- Bioassay test result confirmed/proven disinfection performance equal to or higher than that of competitors.
3. Development of ultraviolet reactor (UV AOP) and optimal operation control system
goal
- Localization of UV AOP system through CFD modeling program development and performance verification
Research Content
- Development of optimal design/performance prediction technique for UV reactor through CFD modeling (Patent: WO2016159420/KR101584978)
- Securing technological prowess and price competitiveness equal to or higher than that of foreign products
- Establishment of automatic control system according to fluctuations in flow rate and water quality
CFD Modiling
UV AOP reactor design
-UV AOP reactor flow analysis
-Dose Calculation
-Reactor design and performance prediction through CFD and calculation program
TEST
Derivation of CFD Modeling Parameter
CFD Modeling result verification
UV AOP reactor performance evaluation
-Performance evaluation of UV AOP System using odor and taste substances (2-MIB)
-Implementing accurate performance verification through CBD test and demonstration scale test
-Goal: Remove 2-MIB 70% and maintain hydrogen peroxide injection amount less than 10mg/L
Operating program
UV AOP reactor optimal
Control program development
-Real-time response to flow rate and water quality conditions
-Real-time online monitoring system construction
-HMI configuration based on user convenience
4. Development of mechanical and chemical cleaning devices for realization of high-efficiency, low-energy UV sterilizers
goal
Development of the world's best online mechanical and chemical automatic cleaning device for ultraviolet disinfection facilities
Research Content
- Development of an online cleaning solution injection system that complements the shortcomings of existing mechanical and chemical cleaning systems
- Developed wiper housing to maximize cleaning performance
- Real-scale performance verification test to derive aging & fouling factors
| Online mechanical and chemical cleaning device cleaning principle |
| An online mechanical and chemical cleaning system that maximizes cleaning efficiency by high-speed movement of chemical cleaning liquid including micro bubbles along the spiral guide groove inside the wiper housing to the outer peripheral surface of the quartz tube. |
5. Development of UV-AOP demonstration technology for optimal treatment of harmful substances caused by algae in small and medium-sized water purification plants
goal
Development of appropriate oxidation treatment technology (UV-AOP) for the control of harmful substances from algae (10,000ton/d or higher)
Research Content
- Optimal design of CFD-based UV/AOP reactor, development of economical-based control program
- Development of monitoring technique for automatic control of radical consumption factors of raw water
- Establishment of a technique for evaluating the generation and removal of oxidation by-products
- Developed chemical cleaning solution (Bubble Clean Solution) for online mechanical and chemical cleaning equipment and obtained domestic and overseas certification
- Bubble Clean Solution Domestic and foreign certificates
6. Development of an antimicrobial material-based non-drug UV disinfection system to reduce harmful microorganisms in hydroponics facilities exposed to the human body
goal
Development of a chemical-free UV disinfection system harmless to the human body for effective water quality management of various types of cooling towers, hydroponic facilities (floor fountains, children's water facilities, etc.), swimming pools and large water parks
Research Content
- CFD-based UV reactor optimal design and operation optimization technology development
- Comparison evaluation and verification of disinfection performance with existing disinfection systems (room scale)
- Acquired NSF 50 (Equipment for Pools, Spas, Hot Tubes and Other Recreational Water Facility) certification
- Development of UV reactor with powerless automatic cleaning device and evaluation of cleaning performance
- Cylindrical UVC LED reactor development (including lamp cooling system) and performance evaluation
7. Demonstration of the development of an electrolysis/ultraviolet hybrid disinfection device to reduce harmful viruses
goal
Development and demonstration of hybrid electrolysis/ultraviolet disinfection device capable of efficient removal of harmful substances (microorganisms and viruses) present in the discharged water discharged to rivers and seas
Research Content
- Optimal design and performance evaluation of UV reactors of various types (waterway horizontal type, pipeline type, waterway slope type)
- Long-term demonstration operation (sterilization performance, economy) and evaluation of individual and hybrid processes
- Process evaluation through monitoring of substances to be removed (microorganisms, viruses) and development of operating technology to minimize disinfection by-products
8. Development of large-capacity disinfection/oxidation device using long-life medium pressure and pulsed UV lamps
goal
Development of high-efficiency, long-life medium-pressure and pulse-type UV lamps/stabilizers, and a 20,000 ton/d large-capacity UV disinfection/oxidation device applying them
Research Content
- Development of high-efficiency, long-life medium-pressure (4, 6, 8 kW class) UV lamps and pulse type (10 kW class) UV lamps and electronic ballasts for driving
- Development of large-capacity UV disinfection and oxidation device based on CFD-RED analysis equipped with online mechanical + chemical + micro bubble + high-speed circulation cleaning device
- Development of Online UVT meter with automatic cleaning function and development of interlocking operation control program
- Lamp and ballast, UV disinfection/oxidation device performance evaluation
- Development of constant monitoring technology and automatic control system for large-capacity UV water treatment system
Development of medium-pressure and pulse-type lamps and ballasts
High efficiency, long life lamps and ballasts
Development of UV lamp and ballast considering cooling characteristics (for water treatment)
- Development of electrode and sealing part shape considering cooling characteristics
- Study on lamp tube etching and mercury, inert gas injection (pulse: Xe gas)
- Development of high efficiency, high power factor low frequency AC Square Wave type ballast
- Seamer lighting method and IGBT power circuit development (pulse type ballast), etc.
┃ Cooperative research evaluation ┃
Development of large-capacity disinfection and oxidation device
Large capacity UV reactor
Large capacity UV water treatment
Automation of the system
- Reactor optimization design based on CFD-RED and approximate optimization techniques
- Developed reactor equipped with on-line mechanical + chemical + micro bubble + high-speed circulation cleaning device
- Reduced installation space by more than 10% through One-Side Access
- Overseas certification period performance evaluation and international certification acquisition, etc.
┃ Acquired international certification ┃
Control technology and online UVT meter development
UVT Meter and operation algorithm
Operation optimization according to water quality change (UVT) and algorithm development and variable control demonstration
- Development of Online UVT Meter with automatic cleaning function
- Demonstration of operation optimization algorithm and variable control according to UVT change
- Lamp life diagnosis and lamp output control technology development through individual lamp output monitoring
- In addition to the development of lamp linearity variable output control technology to reduce operating costs and improve lamp life