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Influent and sewers

Tracking TSS (Total Suspended Solids) is crucial for gaining valuable insights into water quality evolution, both ingoing into the wastewater treatment plant, or in sewers. It allows estimating loading rates, optimise treatment plant design and detect pollution or abnormal discharge early. Additionally, it serves as an alarm system for breakthroughs or overflows.

Influent and sewers

With extended unmatched maintenance intervals and low drift-tendency, these sensors provide the most practical and cost-effective solution for reliable, long-term monitoring in challenging environments like influent or sewers.

"The impressive fouling resistance of the OLPAS Technology, makes the Olpas Tentacle sensors the ideal solution to measure TSS in sewers and urban waste water: the sensor requires significantly less maintenance and it has by far the lowest tendency to drift compared to our whole install base of TSS and Turbidity sensors."

Key features


IoT-ready

  • IoT-ready, with digital output optimised for energy efficient data communication

  • Low energy usage

  • Easy to connect to an external powersupply (batteries or solar)


Olpas TSS sensors are suitable for measurements in

  • Sewers, Sewer overflows and CSO spills (stormwater)

  • Influent of WWTPs (Waste Water Treatment Plants)

  • Open waters, canals and natural rivers


Other measurements available:

Next to TSS-measurement in challenging environments, Olpas also offers TSS measurements in WWTP-effluent (low concentrations), in various WWTP-applications, and in bulk water and lakes.

Available Products

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Sewers, Overflows (CSOs / SSOs) and Stormwater

Sewers, Overflows (CSOs / SSOs) and Stormwater

TSS sensors deliver real‑time concentration alerts in sewers and overflows (CSOs/SSOs). The best in industry for resistance to fouling and drift.

Surface water

Surface water

SSC and TSS sensors monitor suspended solids and sediment in open waters in a wide range of particle sizes, independent of temperature changes or changes in water colour, and with season‑long accuracy.

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