Sea water desalination plant

PDGroup Water SolutionsSeawater Desalination Plant

Seawater Desalination Plant

Innovative plant for energy saving using RO method

This plant removes salt from seawater to obtain potable water and domestic water, is designed based on energy-saving reverse osmosis methode, which is differenciated from the traditional RO system which requires a lot of power and maintenance cost.

High concentrated water from reverse osmosis process is connected with energy recovery device for saving amount of power consumption.

Consecutive MF and External UF system are applied to system as a pre-treatment so that life-time of RO membrane is doubled. Also, maintenance cost is decreased through consecutive treatment without consumables.

Fresh treated water that electrolyte ions are removed is obtained through inflow seawater to reverse osmosis membrane using high pressure more than osmotic pressure. At that time, generated high pressurized concentrated water is connected with energy recover device and recycled. During this process, electric power of seawater high pressure pump is decreased. Finally, amount of consumed electri power is about 40~50%.

Advantage
  • Selective rejection of unreacted matter and salnity by NF
  • Two stage pre-treatment system (consecutive MF+External pressure type UF)
  • Plant consists of long-life reverse osmosis membrane.
  • Saving maintenance cost due to few or corrosion & breakdown
  • Duplex material whichas corrosion resistant of seawater.
  • Unnecessary for consumable filter media.
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Flow Chart
Sea water desalination flow chart

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