Measurement
Influent spectral measurements and the applicable phosphorus measurement or surrogate.
Compass CPR
Chemical phosphorus removal. Predictive dosing for the phosphorus-removal duty, accounting for the changing coagulant demand of the incoming wastewater.
Wastewater
Chemical phosphorus removal.
Predictive dosing for the phosphorus-removal duty, accounting for the changing coagulant demand of the incoming wastewater.
Software shaped around your process
From a signal to a strategy.
The value is in the relationship between the measurements, the model and your treatment objective.
Explore the technologyInputsIncoming water measurements
Bring together the online water-quality and process measurements agreed for the treatment duty. PMA reviews their location, units and history for the site.
Compass algorithmSite-specific dose prediction
A relationship developed from process evidence translates changes in incoming water into a predicted coagulant demand. The treatment objective shapes the model.
OutputCoagulant-dose control
The calculated dose feeds the agreed plant control arrangement. Control limits, the existing dosing approach and operator responsibilities are reviewed before handover.
Compass data / illustrative interface
See the signal. See the decision.
A visual example of how changing incoming conditions and a calculated dose can be read together. These are fictional demonstration values, not site readings or treatment results.
Influent signal0.68normalised index · demo value
Calculated dose42.4mg/L · demo value
Incoming changeCalculated response
EarlierTime →Now
Illustrative UI only. Values and curves are fictional, carry no performance meaning, and require site-specific units and validation before operational use.
The data behind the model
Measurements with
a defined purpose.
Objective
A coagulant-dose prediction for chemical phosphorus removal in wastewater.
Control context
The assessment accounts for non-phosphorus coagulant demand as well as the phosphorus-removal duty.
Explore the treatment duty.
Review the measurements, objective and evidence for this application.
From application to control
A considered route
to your next step.
Understand
Define the treatment objective, source variability and current dosing approach.
Review
Bring together online measurements, operating records and laboratory evidence.
Configure
Agree the instrumentation generation, measurement arrangement and plant interface.
Validate
Establish a site-specific assessment and review the model before the agreed control handover.
Application questions
A closer look.
Why consider the rest of the influent?
Coagulant demand is affected by more than phosphorus alone. The Compass CPR approach considers the non-phosphorus demand alongside the phosphorus component.
Can we use an existing phosphorus analyser?
Share the analyser, reporting basis, sample point and available signals. PMA reviews how those measurements could fit the proposed arrangement.
Developed around
your process.
The wastewater approach accounts for the non-phosphorus coagulant demand as well as the phosphorus-removal duty. The proposed measurement and control arrangement is reviewed for the site.
- Defined treatment objective
- Site-specific algorithm
- Configuration review with PMA
The right context.
A practical starting point.
- Application
- Wastewater
- Treatment duty
- Chemical phosphorus removal
- Control approach
- Feed-forward dose prediction
- Configuration
- Reviewed for the site and applicable system generation
Technical information
Explore Compass CPR in detail.
Explore the range brochure, or ask PMA for current Compass CPR instrumentation and configuration details for your site.
Explore the range.
A clearer starting point
Your questions,
answered.
How is feed-forward control different?
Feed-forward control uses measurements of incoming water quality to calculate a dose before changes pass through treatment. A site-specific algorithm relates those measurements to coagulant demand.
Which Compass model should we consider?
Compass and Compass EOR cover drinking-water duties. Compass CPR and Compass CEP cover distinct wastewater duties. PMA can review your treatment objective, existing process and available measurements.
Does every installation use the same instruments?
The instrumentation and integration depend on the system generation and the site. A configuration review establishes the sensors, control signals, communications and installation arrangement for your project.
Can we use our existing plant measurements?
Share the instruments, signals and control arrangement already available at your site. Compatibility and the measurements required for your application need to be reviewed for the proposed configuration.
