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An assessment methodology for screening WW streams causing reduction of UVT

Project Number # 2033

Development of an assessment methodology to predict the effectiveness of UV disinfection of recycled water by screening Trade Waste streams causing reduction of UV transmittance

Status:  Completed

The water industry is facing several challenges: the target of lowering water bills to ensure an affordable service for customers, providing alternative supplies of water, and identifying opportunities for decentralised treatment systems. The increase in the uptake of dual pipe recycled water has changed the types of treatment trains that the water utilities are managing.  This includes the use of Ultra Violet (UV) disinfection for wastewater, in particular, for secondary effluent.

The outcome of this work will be a tool with which wastewater streams, such as Trade Wastes, can be screened for their impact on the UVT of secondary
effluent, and thus their impact on the effectiveness of the disinfection process determined. This will enable water managers to make informed and timely
operational decisions and to more efficiently meet customer expectations regarding the safety of the recycled water product.