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Aquionics’s UV disinfection systems have been validated for wastewater reuse applications in accordance with AwwaRF/NWRI guidelines.

Having undergone third-party validation testing by Carollo Engineers, the systems have been formally approved for post-filtration and reverse-osmosis applications by the California Department of Public Health.

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, so there is 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.

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.

Other irrigation uses include landscape and recreational applications, such as golf courses, parks, 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, reuse of wastewater relieves the burden on existing municipal potable supplies.


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