Hydroscape launch new disinfection system in UK
A disinfection system that combines the use of ultraviolet radiation with ultrasonic and acoustic vibrations to kill microorganisms has made its debut in the UK.
The Lazur technology from Hydroscape has an ultrasonic transducer located in the ultraviolet radiation chamber, which causes the formation of short-lived steam gas bubbles in the water under low pressure.
These bubbles form around a nucleus that can either be spores of fungi or bacteria. When the water is pressurised the bubbles ‘burst out’, creating zones of high temperature and pressure, thus destroying pathogenic organisms in the vicinity.
Free radicals, ozone, hydrogen peroxide and other active substances are generated in the bubbles under ‘harsh’ ultraviolet radiation at 185nm wavelength. Due to the amount of bubbles and their tendency to burst, the free radicals are uniformly mixed through the water and effectively destroy remaining pathogenic organisms. In this case Ultraviolet radiation essentially stimulates the disinfection action of the free radicals. Power consumption Lazur systems are available in flow rates from 0.5 m3/hour to 500m3/hour.
Amongst the range of benefits the new system is claimed to offer is its inactivation of microorganisms, including Legionellosis, Leptospirosis, Hepatitis A and Aspergilis.
Lazur UV lamps have long service life of 16,000 hours compared to 10,000 hours in other systems.
Similarly, its UV intensity reduction is between 5 and 10%, compared to other systems, which can be up to 50%.
In a recent preliminary study by the Australian Water Quality Centre, it was found the unit effectively removed 6 or 7-log of E, coli, K, pneumoniae, and Ps.aeruginosa in water with a UVT of 80%.