Legionella | Legionella management

Trevi provides a comprehensive package of services related to Legionella control:

Legionella risk-analysis, prevention and control

A Legionella file can contain following items:

  • inventory of water distribution systems
  • sampling for Legionella analysis and evaluation of the results
  • screening of the plant for potential sources of contamination
  • detail analysis of potential hazardous processes (cooling towers, humidification, misting instalations, ...)
  • risk-assessment and risk-control
  • advice regarding protection and prevention
  • proposal of the most suitable disinfection method and alternative methods of disinfection
  • execution of disinfection

Possible Legionella abatement techniques

These techniques can be applied for an effective Legionella control, in a continuous system or by a periodical shock dosage:

  • thermical disinfection with hot water
  • chlorination by means of sodium hypochlorite, chlorine dioxide or chlooramine
  • dosage of peroxide
  • ozonization
  • UV sterilization
  • elektrolysis
  • ionization with copper and silver ions
  • ultrafiltration


The past 5 years more than 600 dossiers were drawn up for including sportscomplexes, hospitals, residential and care centres, hotels and enterprises. The reference list with al the legionalla studies can be received on This email address is being protected from spambots. You need JavaScript enabled to view it..