CASE STUDY – Easy Influent Monitoring & Phosphorus Dosing Control

CASE STUDY

Easy Influent Monitoring & Phosphorus Dosing Control

Measuring: COD, PO4, NH4, COD filtered & TSS

Introduction to UV/Vis


STEP 1: First, we set up the sensor using a simple handrail bracket and outdoor enclosure.

Royce Water Technologies - Easy Influent Monitoring

STEP 2: Then we added an Air Compressor and an Autosampler to automatically clean the sensor and retrieve samples.

Royce Water Technologies - Easy Influent Monitoring

STEP 3: Lab reference tests were undertaken.


STEP 4: Site specific chemometric models (calibrations) were then created.


EVALUATION: Initial results were good with high SQI confidence (low values) but PO4 controlled dosing for feed-forward phosphorus control was an important project driver.

Royce Water Technologies - Easy Influent Monitoring

Separate calibrations for PO4 were set up for evaluation.

Royce Water Technologies - Easy Influent Monitoring
Royce Water Technologies - Easy Influent Monitoring

A Victoria wide lockdown suddenly occurred which demonstrated an increase in incoming Ammonia as more people stay home.

Royce Water Technologies - Easy Influent Monitoring

Summary

Parameters measured with a single sensor: COD, COD-filtered, PO4, NH4, TSS (NO3 available)
Work required by the site to set up: Electrical wiring, 25-35 grab samples, lab testing
Maintenance requirements: Sensor requires manual clean once per week
Phosphorus dosing control evaluation: Suitable
Influent monitoring evaluation: Suitable

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