The Ultrasonic Sludge Blanket Level Meter is an advanced instrument designed to measure the interface level between the settled sludge layer and the supernatant in clarifiers and thickeners in real time. It supports stable sludge blanket monitoring and process optimization in municipal and industrial water & wastewater treatment plants, helping improve operational efficiency and effluent quality control.

1) Measuring Principle (TOF)

The system transmits ultrasonic pulses and analyzes the reflected signals from the sludge interface. By calculating the Time of Flight (TOF), it determines the distance between the sensor and the interface, providing accurate sludge blanket level measurement.

2) Key Features

• Stable measurement under floating sludge conditions: Removes unstable signals caused by floating sludge for reliable interface detection

• Advanced filtering of structural echoes and noise: Minimizes errors by filtering reflections from tank structures and environmental noise

• Multi-frequency operation: Selective detection under both low- and high-concentration sludge conditions

• Real-time monitoring for process control: Enables continuous monitoring for improved operation and better effluent quality management

3) System Components & Options

• Sensor: Submersible ultrasonic sensor for interface level detection

• Controller: Signal processing and level display/output unit

• Options: Air cleaning unit and installation accessories (protection/swing bracket) available depending on site conditions

4) Applications

• Wastewater treatment plants: primary/secondary clarifiers, thickeners

• Water treatment plants: sedimentation basins, thickeners

• Power plants, steel mills, and various industrial process water treatment facilities

• Pulp & paper, food & beverage, petrochemical, semiconductor industries, and more