Brackish Water Desalination Plant


In general, ground or surface water with an increased salt content is referred to as brackish water. With the aid of desalination systems, this can be processed accordingly so it can be used as drinking water or process water for industry agriculture sector. Minerals and many other unwanted substances, such as chemicals, bacteria, viruses and heavy metals, are also removed from the water.


The design and construction of brackish water desalination systems primarily depend on the salinity of the available water, the substances contained in the water, and the parameters required for product water. It is therefore necessary to plan and design the systems on an individual basis, which is often associated with high costs. Standard systems offered at suitable prices often only represent a compromise, as these frequently do not sufficiently meet the individual needs of the customer. The BW-S are compact units mounted onto a frame. They are supplied ready for use, so installation and commissioning can take place on site within a very short space of time.

EcoWa product range comprises preconfigured systems of various sizes, which are adapted at no extra cost according to the individual needs and requests of our customers. Of course, we can also offer intermediate sizes as well as systems outside of the capacity spectrum. Our preconfigured systems are divided into two series:

EcoWa-BW DDI (capacity: 1,000 – 5,000 l / day)
EcoWa -BW K (capacity: 10 – 90 m³ / day)

System components

  • Steel frame
  • Dosing system
  • Cartridge filter
  • Activated carbon filter
  • High-pressure pump
  • Membrane elements in GRP pressure vessels
  • Switch cabinet
  • Measuring devices for pressure, conductivity, flow
  • Control valves, pressure switches

Operating data

  • Salinity feed water: up to 6,000 mg/l
  • Temperature feed water: 10 – 30 °C
  • Required inlet pressure: min. 2 bar
  • Salinity product water: max. 500 mg/l
  • Efficiency: 70 – 75 %
  • Maximum operating pressure: 10 – 14 bar
  • Salt rejection: approx. 95 %
  • Energy consumption per m³ of product water: approx. 1.5-2 kW