Endress+Hauser Liquiline CDC80 aeration analyser

Endress+Hauser’s Liquiline CDC80 optimises aeration times in the biological stage of wastewater treatment. This is the stage that is energy-intensive as most oxygen blowers are operated in a time-based manner or using only a simple form of oxygen control.

The analyser allows the aeration process to be run according to the wastewater ammonium load, which is far more efficient. It monitors ammonium load and controls the oxygen blowers so the aeration process only runs until the ammonium value has reached a predefined lower set limit.

The product also determines the oxygen setpoint value, which is adjusted dynamically depending on the ammonium load, so the plant can be attuned to different load situations. This leads to optimised operating times for nitrification and denitrification, and reduced energy consumption. Phosphate precipitant dosing can also be controlled by the device, ensuring efficient phosphate conversion and saving on precipitant and costs.

The product can connect to existing instrumentation and be easily integrated into existing process control systems. Additionally, if the company’s Memosens technology is used, calibration values and measured values can be digitally transferred to the transmitter without interference. A remote access function is available for even faster and easier maintenance - a safe VPN channel allows monitoring and change of parameters.