Seawater Desalination

Seawater desalination plants, solutions, processes and chemicals from Veolia Water Technologies South Africa (Veolia South Africa) are tailored to desalinate seawater for large-scale municipal use. These technologies and processes have improved water security for tens of thousands of people by turning to the only consistent available water source for water relief – the ocean!

With a solid technical capability based on over 160 years' experience in the global water industry, Veolia designs, constructs, commissions and operates large scale seawater desalination plants to meet each community's unique water needs. Desalinated seawater can also be used by companies for industrial processes.

We help municipalities and communities ensure:

  • Reduced water insecurity
  • Compliance with drinking water standards
  • Maximum return on investment

Develop your own seawater desalination programme! Enquire now to find out how.

Desalination creates value from a renewable resource

Seawater desalination plants offer numerous benefits to coastal communities in water-stressed regions:

  • Augment and supplement available water sources with high-quality fresh water
  • Ensure a constant water supply during droughts or in desert environments
  • Eliminate the need to import fresh water from other locations

Desalination aides environmental responsibility

Veolia's cutting-edge seawater desalination technology is able to recover energy from the exceptionally high-pressure membrane processes. This drastically reduces a plant's carbon footprint and operating costs.

Large scale seawater desalination technologies

Veolia Water Technologies has built more than 15% of the world's total seawater desalination capacity using both traditional and cutting-edge desalination technologies.

  • Reverse osmosis (RO) seawater desalination

  • Multiple-effect distillation (MED)

  • Multi-stage flash (MSF)

  • Hybrid systems (reverse osmosis and thermal seawater desalination)

Help to secure a clean, renewable and consistent fresh water supply by developing your own seawater desalination programme! Enquire now to find out how.

Seawater desalination plant success

Mossel Bay - Western Cape

In 2010, the worst drought in over 130 years caused the southern Cape to be declared a disaster area. Veolia designed, constructed and now operates a turnkey RO seawater desalination plant that supplies up to 15 mega litres per day, effectively mitigating the risk of the town's people and industries running out of high-quality fresh water.

Key figures:

  • This seawater desalination plant is ten times bigger than anything previously built in South Africa at the time.
  • Maximum capacity:15 mega litres per day
  • Water for municipal consumption: 10 mega litres per day
  • Water for industrial consumption: 5 mega litres per day

View this case study in detail

Cannon Rocks & Boknes Communities - Eastern Cape

An RO seawater desalination plant supplies communities with up to 750 m³ of fresh water per day. This plant removes salt, which finds its way into ground water by means of seawater intrusion, from the raw ground water. This plant's water complies with SANS 241 specifications - high-quality drinking water.

Lamberts Bay - Western Cape

Veolia designed, built and commissioned a 1.7 mega litre per day seawater desalination plant for the Cederberg Municipality in the Western Cape to help alleviate growing pressure on the region's water supply. A very tight capital budget required for plant designs to be optimised to allow for a future seawater desalination capacity increase to 5 mega litres per day.

Plettenberg Bay - Eastern Cape

Veolia helped to alleviate a water shortage in Plettenberg Bay by building a 2 mega litre per day seawater desalination plant next to the town's iconic Beacon Isle Hotel. As a key tourist destination, Veolia ensured the plant's footprint was as compact as possible, as well as aesthetically sound.

Knysna - Western Cape

A 2 mega litre per day seawater desalination plant sources water from nearby the Knysna lagoon. Since the plant was constructed close to the town's wastewater treatment works, any brine - highly concentrated saltwater produced by the seawater desalination process - can be discharged along with the treated water, responsibly reducing the risk of excessive salinity in the eco-sensitive region. This plant further features an energy recovery system to significantly reduce the desalination process' energy consumption.

Secure a clean, renewable and consistent fresh water supply.

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