Actuators support plans for advanced wastewater treatment

MBR treatment plants work without the addition of chemicals and with relatively low energy consumption, combining secondary and tertiary treatment and eliminating traditional sand and carbon filtration. Centralised process control and automation at Viseu Sul is facilitated using Profibus DP network technology, utilises Rotork’s latest multi-turn and part-turn intelligent non-intrusive electric actuators (IQ and IQT respectively) to operate penstocks and butterfly valves for flow control throughout the wastewater treatment process.

The Rotork IQ Profibus DP interface card provides control and feedback data about the valve and actuator using DP-VO cyclic communication. Actuator diagnostics and configuration information is included in the data supported by the card, enabling valve profiling and diagnostic data collected by the actuator to be incorporated into asset management systems.