• 2025-07-22

UV light to remove Legionella

Mechanism of action

Ultraviolet disinfection technology penetrates microbial cells through 254nm wavelength radiation, causing photochemical cross-linking reaction of pathogen DNA, permanently destroying the replication ability of pathogens such as Legionella. FupengWater ultraviolet system can be integrated into key nodes of water supply pipelines to achieve instant microbial inactivation.

Characteristics and risks of Legionella

Survival characteristics

Suitable temperature range: 20-60℃ (cooling tower/high-risk area of hot water system)

Survival under the protection of biofilm for more than 6 months

Transmission route

Aerosol inhalation (particle size 1-5μm can reach alveoli directly)

High-risk places: central air conditioning system/massage bath/industrial humidifier

Clinical hazards

Incubation period 2-10 days, mortality rate as high as 10-15%

Sequelae include progressive pulmonary fibrosis and multiple organ failure

Technical challenges

Conventional chlorine disinfection has an inactivation rate of less than 40% for Legionella hidden in biofilm

Traditional culture method detection takes 7-14 days, delaying the prevention and control time

Complex pipeline systems have disinfection blind spots

FupengWater solution Solution

Industrial grade UV sterilizer

304 stainless steel reactor (IP68 protection level)

Real-time intensity monitoring and automatic cleaning system

Intelligent chemical dosing system

Peracetic acid + silver ion synergistic biofilm removal solution

Legionella rapid detection kit

PCR method completes on-site qualitative analysis in 30 minutes

Core advantages

Sterilization efficiency

99.99% Legionella inactivation rate (40mJ/cm² irradiation dose)

Zero chemical residue, no effect on the physical and chemical properties of water

Operation and maintenance economy

35% lower operating cost than chemical method

Automatic quartz tube cleaning extends lamp life

System compatibility

Modular design adapts to DN15-DN300 pipelines

Redundant configuration ensures uninterrupted operation