RAS - Return Activated Sludge
RAS indicates the portion of settled activated sludge that is returned from the clarifier to the aeration tank.
Maintains a high concentration of microorganisms for effective biological treatment.
Available Products
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OTE-SEDA
Water monitoring: Suspended Sediment Concentration (SSC)
Olpas SSC sensors use a novel proprietary 3-8 Mhz Accoustic Backscattering measurement technology for an exceptional wide coverage of particle sizes for its concentration measurement. The sensors are pre-calibrated, drift-resistant and require very few maintenance.
OTD-SDPB
TSS in dewatering centrate (with centrate pump and flowcell)
An easy to install end-to-end measurement solution with limited impact of air-bubbles and exceptional fouling resistance thanks to ultrasound measurement technology. For measuring TSS in concentrations from 0 - 2.000 mg/L.
The device consists of a sample grabber (centrate pump) and flow-cell.
OTD-SDPC
Residual Polymers in dewatering centrate (with centrate pump and flowcell)
An easy to install end-to-end measurement solution with limited impact of air-bubbles and exceptional fouling resistance thanks to ultrasound measurement technology. For measuring polymer concentrations.
The device consists of a sample grabber (centrate pump) and flow-cell.
OTD-SDWE
Sludge Cake Concentration - Grabbing Solution and Sensor
The Olpas sludge concentration measurement system consists of a dataprocessor and ultrasound transducer, with a sample grabber. The system is capable of measuring sludge in concentrations from 0 - 40 %DS.
The Olpas ultrasound technology provides a fouling-resistant measurement of the sludge concentration, independent of sludge type or morphology.
![Solids Concentration Measurement - Through Pipe (Clamp-on) [TRL-7]](https://static.wixstatic.com/media/27c1c1_ea73ffddf4514be4942e9a9b9c4805be~mv2.jpg/v1/fill/w_320,h_320,al_c,q_80,usm_0.66_1.00_0.01,enc_avif,quality_auto/Image-place-holder.jpg)