Pulsar Measurement Provides End-to-End Solutions for Wastewater Treatment Plant

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The Township of Edwardsburgh in Eastern Ontario, Canada operates a wastewater treatment system for a small community of about 6,900 people. One of the main challenges of this system is that all the working parts of the process are spread out. Pulsar Measurement provided the township with a variety of ultrasonic flow and level instruments, beginning at the four pumping stations in town.

Wet well levels within the pumping stations are controlled with the PSL 5.0 Hybrid Pump Station Level Controller. The unit works by measuring tank level via the primary non-contacting ultrasonic level sensor and is programmed to start the discharge pumps once the well has reached the desired level.

When sewage is pumped back into the main plant from the pump stations, it is processed through bar screens to remove debris and then passes through a grit chamber. Once passed the grit chamber, the total influent is metered via two OCF 6.1 Open Channel Flow meters and is measured based on the level of wastewater passing through two Parshall Flumes, also purchased through Pulsar Measurement.

The next stage in the process is the separation of solids from the water. The influent passes through two sequential batch reactors where the water level is again monitored and controlled by the Pulsar Measurement non-contacting LIT25 Level Indicating Transmitter. Once the tank is full, the supernatant is discharged from the batch reactor until the tank is back to a specific level, measured and controlled by the Pulsar Measurement LIT25 level sensor.

Using a variety of Pulsar Measurement flow and level products, the Township of Edwardsburgh can relax knowing their wastewater plant is operating without the fear of catastrophic failures and is treating the effluent and sludge to high environmental standards.