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Process Control Real Time Control For Waste Water Treatment

Editor: Dominik Stephan

Hach Lange has developed a range of Real Time Control (RTC) modules for common waste water treatment techniques (including nitrification control in activated sludge, denitrification control, BAFF process control and cell management, sludge age control, chemical dosing, sludge thickening and dewatering control).

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Tighter discharge consents are forcing the water industry to make further investments in wastewater treatment and this will increase costs and CO2 emissions.
Tighter discharge consents are forcing the water industry to make further investments in wastewater treatment and this will increase costs and CO2 emissions.
(Picture: Hach Lange)

Each RTC is implemented on an industrial PC which communicates with a controller (sc1000) network and the local PLCs. The WTOS RTC modules continuously deliver set points to the PLC, which applies them to the process and ensures that response to changing conditions is immediate.

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