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Phosphorus monitoring. Understand coagulant demand.

Phosphorus information helps define the chemical-removal duty. Influent solids and organic material can also contribute to the dose required by the works.

Discuss your measurements

What the signal can tell you

A phosphorus concentration alone does not describe every source of coagulant demand entering a wastewater process.

Put the information into context.

01

Read the water

Phosphorus information helps define the chemical-removal duty. Influent solids and organic material can also contribute to the dose required by the works.

02

Connect the model

Compass CPR considers the phosphorus-related and non-phosphorus demand within its site-specific control approach.

03

Agree the evidence

Confirm whether the project uses a phosphorus analyser input or a validated surrogate, together with the reporting basis, target and sampling point.

The measurement arrangement and control objective are agreed for the works. Performance is assessed against site evidence.

Define the phosphorus basis before comparing the numbers.

Total phosphorus and orthophosphate describe different reporting bases. The project review should establish which result is available, where it is sampled and how it relates to the removal objective. That phosphorus information is considered alongside background influent demand when developing the CPR dosing approach.

Does Compass always measure phosphorus directly?

The design may use a phosphorus analyser input or a surrogate supported by site evidence. PMA reviews the reporting basis and configuration with you before confirming the measurement arrangement.

Compass CPR

Compass CPR considers the phosphorus-related and non-phosphorus demand within its site-specific control approach.

Explore Compass CPR