Location Turf St, Burnley BB11 3BP
Phone 01282 422835

Streaming Current Monitors – StreamerSense

StreamerSense RuggedStreaming Current Monitors and Streaming Current Detectors from Pi use streaming current measurement (similar to Zeta Potential) to maintain proper electrokinetic charge (ionic & colloidal) in coagulation control applications in water treatment. Effectively these coagulation analysers detect and control the level of residual coagulant. The objective is to keep this residual at a minimum while maintaining desired final water quality and process efficiency.

The Streaming Current Monitor can be used as an effective feedback coagulation control tool allowing the operator to optimise the coagulant dose, effectively building a coagulation controller.

Maintain Optimum Dosage with StreamerSense

The coagulation analyser uses a streaming current monitor to maintain proper electrokinetic charge (ionic & colloidal) in the treated water. Effectively, it responds to changes in raw water characteristics (turbidity, colour, pH, etc.) and flow rates. This allows the operator, or an automated control device, to make the necessary coagulant feed adjustments in order to continuously maintain the optimum coagulant dose. In some water treatment facilities the water chemistry is such that the coagulation analyser on its own is insufficient to properly control coagulation and in these applications the coagulation analyser (streaming current monitor) can be enhanced with UV254 measurement, turbidity measurement and pH measurement to create a multi-sensor coagulation control system, such as the CoagSense flush.

Streaming Current Monitor 3D View

Please contact us for advice with any coagulation control application.

The treated water sample flows into the sample cell where it is drawn into the bore during the upstroke of the piston cycle and is expelled from the bore on the piston down stroke. Particles contained in the water are temporarily immobilised on the piston and cylinder surfaces through van der waals forces . As the water is moved back and forth by the piston, charges surrounding these particles (+ and -) are moved downstream to the electrodes. This movement of like charges causes an alternating current to be generated, defined as “streaming current.” The reading becomes more positive with increasing coagulant addition. Each plant will achieve optimum coagulation at a  streaming current value. (eg. +10). The  streaming current monitor can maintain the value automatically by increasing and decreasing the coagulant dose.

  • Immediate response to process changes in coagulation treatment
  • Maintain high quality finished water through improved coagulation control
  • Reduce coagulant/polymer costs
  • Automate dosing coagulant/polymer dosing using the streaming current monitor
  • Ensure coagulation reliability
  • Improve operator efficiency
  • Improve filter performance and coagulation treatment
  • Monitor your coagulation control process

Streaming Current Monitor Standard Features

  • Patented sensor design
  • Quick replacement probe and piston
  • Self-diagnostic sensor
  • High-volume flow, minimises sensor fouling
  • Removes electronics from harsh environments
  • Corrosion-free Nema 4x enclosure (IP65)
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