Read the water
Bring incoming-water measurements and a works-specific model together to inform coagulant dosing for the drinking-water turbidity duty.
Coagulation control. Start with the incoming water.
Bring incoming-water measurements and a works-specific model together to inform coagulant dosing for the drinking-water turbidity duty.
Discuss your applicationStart with the process question
Raw-water conditions can change before a downstream result reveals their effect. A feed-forward approach starts with the water entering the process.
Put the information into context.
Connect the model
Compass calculates a dosing prediction using the measurements and treatment relationships agreed for the works.
Agree the evidence
Review source variability, existing dosing, turbidity objectives, available organic information, control limits and validation evidence.
The measurement arrangement and control objective are agreed for the works. Performance is assessed against site evidence.
Make the dose decision earlier in the process.
Feed-forward control begins with the water arriving at the works. The incoming measurements inform a site-specific dose calculation, allowing the proposed response to be reviewed before a change is observed downstream. The control design also needs an agreed handover to the existing dosing arrangement and a way to check treated-water performance.
How should a works begin its coagulation-control review?
Start with raw-water variability, current dosing, the turbidity objective and the available organic measurements. Agree operating limits, plant integration and a validation plan for the proposed control approach.
Compass
Compass calculates a dosing prediction using the measurements and treatment relationships agreed for the works.