Modularized concept using RO technology for the brackish water treatment

The riyadh challenge: 33 seawater RO plants in only 5 months to treat 165,000 cu. m / day


The National Water Company of Saudi Arabia selected Degrémont at the end of 2012 for 2 drinking water contracts with:

  • 26 containerized modules of 5,000 cu.m/day each distributed across 13 separate sites, the largest of which is Salboukh, processing up to 30,000 cu.m/day
  • and 7 modules processing up to 35,000 cu.m/day for the Al Buwaib site.


These containerized modules implement reverse osmosis membranes and all pre and post-processing equipment needed to produce drinking water from brackish water. They will be supplied by Water and Power Technologies (WPT), a USA Degrémont subsidiary specialized in modular and containerized processing units.





It has never been done before, it is a real new success story: two contracts signed at the same time with the same customer to design, manufacture, install, and commission 33 units of 5,000 cu.m/day each,  for a total of 165,000 cu.m/day.


The ambitious schedule of only 5 months to supply these plants for 14 separate sites is a new challenge. The first site completion is scheduled for February 2013 and the completions for all the other sites for March 2013. The construction of a single factory of this capacity would have required approximately 24 months.


More than 30 years after having built in Salboukh the first big world desalination reference (60,000 cu.m/day) within the first large RO contract in the world (5 plants for 200,000 cu.m3/day), Degrémont is back to Riyadh by proposing a new type of desalination plants.


The combined expertise of Degrémont’s operational entity in the Middle East and its subsidiary WPT is given a high value in supplying drinking water in a record delay to local populations around Riyadh and its region. These units fit into the framework of the investments announced by the local authorities to support strong population growth in a country where freshwater resources are scarce.





<-- Special Topics: Water, Technologies, Partnerships


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