UV254 at Water Treatment Plants

Water Treatment Plants (WTP) use UVT Monitors to get real-time water quality measurements. UVT is measured alongside pH and turbidity at the raw water intake to give a good indication of the overall water quality. Using the UVT percentage will then allow operators to adjust dosing in a feed-forward process maintenance and to reduce wastage. 

Monitoring UVT at Water Treatment Plants (WTPs) requires three pieces of kit a 10mm Drinking Water Probe, a flowcell and a controller to report the data and trends. We have carefully designed our 10mm pathlength probe to give accurate, reliable results in the range expected from raw water and to distribution. If you have a special case where the inlet is particularly dirty or that the distribution requires ultra-pure water we have solutions for these cases also.

UVT Monitoring at intake of the WTP will allow the plant operator to adjust Dosing and Flocculation (DAF) based on how high the water quality is. If the UVT is quite high and the water is clean at inlet then the operator can choose to reduce the chemical or UV disinfection dose which can save money on chemical wastage or energy costs of a UV dose.

Measuring UVT post-process allows you to see if the dosing process has been effective in removing organic contents so that the water quality is always to acceptable spec. When linked to SCADA the UVT monitor can send a message to reroute the distribution to be reprocessed if the water quality measures low. 

The major benefit for WTP operators using UVT monitoring is that the results are real-time and continuous. Photonic Measurements controllers can be linked to the plants SCADA system, IoT Portals or data can be physically retrieved. Ask us about our range of solutions for sending UVT data and how to receive notifications from your UVT Monitor.

Drinking water output being measured by Photonic measurements for BOD, COD, DOC, TOC, NOM, UVA, UV254


Lisburn, BT28 2GN, GB

About us

Photonic Measurements is:
Incorporated in N.Ireland (NI622996) 
VAT registered in UK (GB192976846)
VAT registered in N.Ireland (XI192976846000)

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