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Parc Scientifique Fleming,
Rue Laid Burniat, 3,
B-1348 Louvain-la-Neuve Sud,
T: +32 476 20 50 68
F: +32 10481495

The Dequest Business is offering unique specialty additives to meet the needs of these industries that deal with water management, industrial processes or applications where water plays a crucial role.

More than 40 years ago, Dequest pioneered the development of phosphonate based antiscalants. Dequest phosphonates have been the product of choice for antiscalants / dispersants / corrosion inhibitors / chelants in various applications for many years.

Today Dequest offers a broad range of water management solutions that go far beyond phosphonates and also include a wide range of polymeric antiscalants and dispersantsbiodegradable polymers and tailor made products for specific applications. For pre-treatment and post treatment Italmatch can also provide a complete solution of coagulants and flocculants.

Italmatch offers Dequest® antiscalant solutions and cleaners for reverse osmosis/nanofiltration and Albrivap® antiscalants and antifoams for thermal desalination.

Our scale inhibitors can save you money by:

  • Preventing premature membrane replacement,
  • Reducing the downtime caused by frequent (membrane) cleanings,
  • Improving plant operations via; - stabilizing high recover rates, - reducing energy costs, - reducing water consumption and concentrate production
  • Reducing overall chemical treatment costs (pretreatment, acid, antiscalants and cleaners).
  • Extending equipment (thermal units) life via reducing acid cleaning frequency
  • Maintaining heat exchangers surfaces clean
  • Allowing units (MED and MSF) runs in more severe conditions (higher Top Brine Temperature);

No matter your individual needs, whether municipal or industrial, Italmatch can provide the right solution which will minimize inorganic scaling of your membranes and thermal desalination units.

Selected References: Water management

  • Carlsbad, United States of America 2012, 204,412 m³/d RO (Reverse Osmosis)
  • Vasilikos, Cyprus 2010, 60,000 m³/d RO (Reverse Osmosis)
  • Limassol, Cyprus 2009, 60,000 m³/d RO (Reverse Osmosis)
  • Hadera, Israel 2007, 456,000 m³/d RO (Reverse Osmosis)
  • Hadera SWRO, Israel 2007, 330,000 m³/d
  • PUB Bedok NeWater Factory Phase II, Singapore 2007, 50,000 m³/d
  • Andratx, Spain 2005, 14,000 m³/d RO (Reverse Osmosis)
  • Ashkelon, Adom Ltd., Israel 2003, 330,000 m³/d RO (Reverse Osmosis)
  • PUB Bedok NeWater Factory Phase I, Singapore 2002, 32,000 m³/d
  • Bahia de Palma, Spain 1999, 68,000 m³/d RO (Reverse Osmosis)
  • Larnaca SWRO Water Desalination Plant, Cyprus 1999, 60,000 m³/d
  • Larnaca Water Partner, Cyprus 1999, 52,000 m³/d RO
  • Jebel Ali, United Arab Emirates, 2,136,620 m³/d MSF (Multi-stage Flash)
  • Shuaiba, Saudi Arabia, 454,000 m³/d MSF (Multi-stage Flash)
  • Al Khobar, Saudi Arabia, 432,580 m³/d MSF (Multi-stage Flash)
  • Yanbu, Saudi Arabia, 321,625 m³/d MSF (Multi-stage Flash)
  • Dhekelia, Cyprus, 60,000 m³/d RO (Reverse Osmosis)
  • Caramondani Desalination Plant, Cyprus, 40,000 m³/d
  • Mt. Pleasant Waterworks, U.S.A., 26,495 m³/d
  • Variable Salinity Plant, Singapore, 13,600 m³/d
  • PUB Bedok NeWater Demo Plant, Singapore, 10,000 m³/d
  • DOW 16" Membrane Pilot Study WWRP, Singapore, 2,400 m³/d
  • Grahamtek EMF membrane Pilot Plant, Singapore, 1,800 m³/d


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