Water Treatment
Ultraviolet water treatment is a highly effective and economical way of disinfecting drinking water, and wastewater before discharge to rivers or the sea. UV destroys all microorganisms including bacteria and viruses that can be hard to kill by chlorination. Unlike conventional water treatment processes, it does not use chemicals or create harmful byproducts. Find out more about our UV technology by visiting the Hanovia Ltd, Berson Milieutechniek BV and Aquionics Inc web sites.
Enviromentally friendly swimming pool water treatment
Ultraviolet light is an environmentally friendly way to treat swimming pool water because it significantly reduces the amount of chemicals used and is environmentally safe.
Since a Hanovia UV system was installed to treat pool water at the prestigious Germantown Academy in Pennsylvania, USA, athletes who normally used inhalers because of chlorine by-products no longer need them.
Waste water recycling
UV treated wastewater is being used to irrigate two golf courses in the town of Anthem in Arizona, USA. Founded less than 10 years ago, Anthem now has a population of over 40,000. As part of its rapid expansion, the town installed Halma UV disinfection technology to ensure its water and wastewater is as clean as possible.
“We chose the UV systems as they exceed local water and wastewater quality standards,” said Anthem’s wastewater Foreman Jeff Marlow. “By reducing our dependence on chlorination, the UV treatment units allow us to minimise the output of chlorination by-products like Total Trihalomethanes (TTHM), while the wastewater systems are optimised to meet the upcoming Arizona Pollutant Discharge Elimination System (AZPDES) Permit Program.”
Beach cleanup
Moonlight Beach in Encinitas, California was consistently ranked poorly by US environmental group Heal the Bay. The problem was caused by pollution from urban runoff water laden with bacteria. The City of Encinitas installed a treatment system based on Halma ultraviolet water disinfection. Water conditions at Moonlight Beach have improved so much that it has now been awarded a passing grade based on bacterial pollution levels.
Alien invasions
Ballast water is taken on board and then and discharged by ships to maintain stability. Ballast is often taken on in one ocean and released in another. The transfer of alien species in ships' ballast water is an increasing environmental concern. The Princess Cruises' ship Coral Princess was the first vessel in the world to be equipped with a ballast water disinfection system based on Halma UV technology.
Recycling treated sewage
Murcia in South-East Spain has a unique climate which allows fruit and vegetables to be grown all year round. However, agricultural productivity is limited by very low rainfall. In the first scheme of its kind in Europe, Halma ultraviolet systems treat 500 cubic metres per hour of municipal effluent for irrigating crops. Crops in Murcia, Spain are irrigated by sewage effluent that has been made safe by ultraviolet treatment.
Drinking water disinfection
Our UV treatment systems are used worldwide to disinfect drinking water in preference to chemical treatments based on chlorine and ozone. Following an outbreak of the waterborne disease giardiasis in the city of Bergen, Norway, we supplied a large-scale UV disinfection plant to the city's municipal waterworks which treats 3,000m3/hr of drinking water.