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Hitachi

Hitachi Aqua-Tech Engineering Pte. Ltd.

Freshwater Maker

Fresh water maker, also known as reverse osmosis unit is a desalination process by removing dissolved salts from seawater under high applied pressure through a semi-permeable membrane. The dissolved salts will be retained on the pressurized side of membrane, which is known as ‘brine’ or ‘reject’. The pure solvent is allowed to pass to the other side, which is known as ‘fresh water’. This reverse osmosis process is applicable for salinity range from 50 – 45,000ppm at 25°C. Fresh water maker is usually designed to treat seawater to meet the outlet requirement of total dissolved solids of 500ppm.

Fresh water maker consists of:

  • Pre-treatment system with filtration and chemical dosing
  • RO membrane unit
  • Post treatment system for pH adjustment and
  • Cleaning In Place (CIP) system

Fresh water maker has advantages of compact footprint and lower CAPEX in terms of power consumption and maintenances. It can be designed in modular form in order to fit into engine room (safe zone area) or topside (hazardous zone area) for ease of installation.

Our design of fresh water maker meets offshore requirements by using robust components, e.g. high pressure pump complied with API-610 standard, ASME certified FRP membrane housing, offshore corrosion resistant paint system and explosion-proof certified electrical and instrumentation components. Our fresh water maker is certified by marine classification society such as ABS, Det Norske Veritas Germanischer Lloyd (DNV GL) and Bureau Veritas (BV)

Application

Our systems can be installed in locations where a continuous supply of seawater, river water or ground water is available.  

  • Power Plants (Combined Cycle Power Plant, Cogeneration Plant, Etc)
  • Floating Production Storage and Offloading vessels (FPSOs)
  • Offshore platforms and rigs
  • Industrial Process requirement
  • Our equipment can comply with hazardous area requirements and Marine Class Standards

Industry

Power Plants, Oil & Gas, Offshore

Reference

  • FPSO OSX 3
  • FPSO Cidade de Mangaratiba MV-24
  • FPSO Cidade de ItaguaÍ MV-26
  • FPSO 9 Carioca MV-27
  • FPSO Petrobras 74
  • FPSO Petrobras 75
  • FPSO Petrobras 76
  • FPSO Petrobras 77

Reference

  1. FPSO OSX 3 – Reverse Osmosis System 1113 m3/day x 2 units
  2. FPSO Cidade de Mangaratiba MV-24 – Reverse Osmosis System 750 m3/day x 2 units
  3. FPSO Cidade de ItaguaÍ MV-26 – Reverse Osmosis System 750 m3/day x 2 units
  4. FPSO 9 Carioca MV-27 – Reverse Osmosis System 750 m3/day x 2 units
  5. FPSO Petrobras 74 (P-74) – Fresh Water Maker for Oil Dilution 600 m3/day x 2 units
  6. FPSO Petrobras 75 (P-75) – Fresh Water Maker for Oil Dilution 600 m3/day x 2 units
  7. FPSO Petrobras 76 (P-76) – Fresh Water Maker for Oil Dilution 600 m3/day x 2 units
  8. FPSO Petrobras 77 (P-77) – Fresh Water Maker for Oil Dilution 600 m3/day x 2 units