Rotork valve actuators in ‘landmark’ waste water treatment project

Jun 30, 2011

Rotork IQPro intelligent electric valve actuation technology will assist the operation of the largest and most advanced waste water treatment, water reuse and sludge treatment plant in the Middle East.

Described as a ‘landmark’ project, the Doha North Sewage Treatment Works in Qatar has a peak waste water treatment design capacity of 439,000 cubic meters per day, serving a projected population of 900,000 by the year 2020. Advanced membrane and ultra-violet treatment technologies are being utilised to reclaim high quality water for non-potable purposes, thereby freeing-up precious drinking water supplies for the community.
 
The site’s sludge treatment plant will also receive and treat sludge from waste water plants throughout Qatar, the treated sludge being used as an organic fertiliser or a source of green energy. Defined as a model project of sustainable development for communities worldwide, Doha North STW is being constructed a partnership between Keppel Seghers, the environmental engineering arm of Keppel integrated Engineering, and the Public Works Authority of Qatar.
 
Rotork IQPro actuators feature an IP68 watertight enclosure with non-intrusive setting, commissioning and interrogation technologies. An illuminated window displays setting prompts and confirmation of setting data, local and remote control status and additional data including valve torque/position profiles. The hand-held setting tool, featuring bidirectional non-intrusive infra red communication, facilitates on-site actuator configuration with or without mains power connected.
 
Bidirectional communication enables data to be retrieved and retransmitted to other actuators, saving immense amounts of time when many valves require near-identical commissioning. In addition, actuator data logger files can be downloaded and transported from plant to office for storage and analysis on a PC running Rotork IQ-Insight software. Effective asset management programmes can then be planned and implemented, maximising plant utilisation and minimising the risk of unexpected plant interruptions.
 
The photograph shows Rotork IQPro actuators fitted to gate valves in sizes up to DIN 1800, destined for the Doha North Sewage Treatment Works. (Photograph by kind permission from Glenfield Valves Ltd).

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