Water & Wastewater
4 . Drinking water Apart from recycling , a good way to conserve drinking water is by upgrading facilities to make them smarter , able to react to changing conditions in real time . Here , valves play a crucial role For Wessex Water ’ s upgrade of its Durleigh facility in the UK , Rotork supplied 200 IQ multi-turn and partturn operated actuated valves on almost all processes . The IQ3 actuators operate on a Profibus control network that provides control and feedback data . Rotork IQ3 actuators were also installed at a Jersey ( Channel Island ) water treatment plant . There they control the flow of water as it is being chemically treated and operate penstocks to control water flow to the filter beds . In the dry countries that can afford it , desalination , which is expected to grow in revenue by 9.32 % from 2021-6 , will be a fastgrowing source of drinking water . Some very large plants are being built in the Middle East , especially on the Arabic peninsular , with a variety of duplex stainless steels being applied to resist the saline conditions .
5 . Flood control An increasingly important element of water management , especially in urban areas where built-up surfaces prevent run-off , is
Tunnel boring machines built by CREG used on the Dubai Deep Tunnel Storm Water System . The tunnel was 10km long and 11.05m in diameter .
flood control . The installations can be sophisticated , as in Glasgow ’ s Smart Canal , a dynamically managed system that accepts stormwater run-off via three discharge locations controlled by actuated sluice valves and controls discharge flow into a nearby river . One of the largest of such systems is the recently completed Dubai Deep Tunnel System , which caters for 40 % of the urban area . It comprises a groundwater and stormwater collection network , a 10km-long deep tunnel , a holding pond , a pumping station , and a sea outfall .
Reference
( 1 ) Stainless Steel World , January / February 2009 .
( 2 ) https :// www . oxfam . org / en / what-we-do / issues / water-and-sanitation .
www . valve-world . net Valve World November 2022
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