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Berson InLine+ closed vessel UV systems available from CST Wastewater Solutions

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article image Berson medium pressure ultraviolet disinfection for effluent irrigation scheme

Advanced UV technology, represented in Australia by CST Wastewater Solutions , has gained a formal approval for wastewater reuse applications.

Berson's InLine+ medium pressure closed vessel UV systems underwent extensive third party testing by Carollo Engineers in the USA before being formally approved for post-filtration and reverse osmosis applications by the California Department of Public Health (Title-22 validation).

The systems are now validated for wastewater reuse applications in accordance with AwwaRF/NWRI guidelines. The validation is significant for Australia because the US has led the way in wastewater reuse for decades. This validation allows an expanded use of UV technology in wastewater reuse applications as large-scale reuse projects are considered in water-poor regions of the world, such as Australia, China and Southern Europe.

Potential applications for wastewater reuse are wide-ranging and include any instance where water is needed for non-potable use. The most popular and widespread use is for agricultural irrigation and for other irrigation applications such as golf courses, parks, fountains and lawns. Reclaimed wastewater is also used for groundwater recharge applications such as aquifer storage and recovery or preventing saltwater intrusion in coastal aquifers. Other uses include toilet and urinal flushing, fire fighting, foundation stabilisation in the construction industry and artificial snow generation. In all these applications, reused wastewater relieves the burden on existing municipal potable supplies.

The most common method of wastewater disinfection for reuse has long been chlorination. Despite chlorine’s impressive track record, concerns regarding disinfection by-products (DBPs) and, more recently, disinfection performance with respect to pathogen inactivation, are driving the conversion from chlorine disinfection to other disinfection methods such as UV, which does not produce any significant DBPs.

Closed vessel UV systems are easy to install within existing pipework with minimal disruption to plant operation. Day-to-day operation is simple and maintenance is minor. The only regular requirement is changing the UV lamps and wiper rings once a year, a straightforward operation that can be carried out by on-site personnel.

Berson’s state-of-the-art technology uses UV sensors to measure how the UV systems are performing. This permits greater control while saving energy, especially when compared to the existing methods of applying crude safety factors to systems that use high numbers of lamps or are unwiped.

Berson are exclusively represented in Australia by CST Wastewater Solutions.

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