Brackish water desalination plants (BWRO)

I’mWATER carries out complete projects for brackish water desalination systems, sourced from the network or wells, from the engineering phase to manufacturing, assembly, and equipment supply.

These systems are known as BWRO systems, from the English “Brackish Water Reverse Osmosis” (Brackish = Salobre).

The brackish water desalination process is very similar to seawater desalination, but generally requires lower pressures, stainless steels of less demanding grades due to lower conductivity levels, and allows for higher conversion rates, ranging from 60-90%.

Sometimes, the water available for extraction through a well has a high dissolved salt content, classifying it as brackish.

It is also possible for an aquifer to have a concentration of metals or salts that is considered harmful for consumption or use.

In some cases, the water supplied by the network has a higher salinity level than desired.

  • Agriculture (blueberry, grape plantations, etc.)
  • Hospitality establishments on islands where network water is brackish or hard
  • Isolated communities with brackish aquifer water sources
  • Aquifer decontamination due to nutrient infiltration
  • Bottling plants for spring water

For all these cases, water treatment through a reverse osmosis process is necessary to remove excess dissolved salts or metals.

  • Manufacturing and supply of pipes, couplings, grooved sleeves, and high-pressure valves in special alloys such as DUPLEX.
  • Manufacturing and supply of custom-made low-pressure permeate manifolds and valves in PVC, HDPE, FRP…
  • Certified pressure testing for the aforementioned fabrications.

  • Pretreatments
  • Filters with silica sand, anthracite, Turbidex…
  • Filters with activated carbon bed
  • Cartridge filters (microfiltration)
  • Dosing of conditioning chemicals
  • High-pressure pumps (multistage centrifugal)
  • Reverse osmosis skids
  • Post-treatments (e.g., residual chlorine dosing)
  • Flushing and CIP membrane cleaning systems

Brackish water desalination plants, or “desalobradoras,” that we offer can have small to medium treatment capacities. They are supplied mounted on a single skid or containerized structure, or even multiple units.

  • Small brackish water desalination plants for agriculture or small communities: These treatment systems range from less than 1 m³/h to approximately 10 m³/h, depending on your needs. They can supply water for around 1,000–2,000 people. I’mWATER supplies them fully pre-assembled, ready to connect to inlets, outlets, and electricity. Easy operation and maintenance. Reduced chemical consumption.
  • Medium-sized compact brackish water desalination plants: Modular, compact systems pre-mounted on skids or containers, with individual modules capable of producing up to 2,000 m³/day. Our most common predefined capacities are as follows, although custom plants can also be designed:
Desalify Series Q (m3/d)
Desalify 50 50
Desalify 100 100
Desalify 200 200
Desalify 500 500
Desalify 1000 1000
Desalify 1500 1500
Desalify 2000 2000

Larger systems can be configured with multiple of these modules interconnected in parallel.