Reverse osmose

Reverse osmosis (RO) is a water purification process that uses a partially permeable membrane to separate ions, unwanted molecules and larger particles from drinking water. The pore-free reverse osmosis RO membranes can completely hold back dissolved ingredients with a molecular weight of less than 200 g/mol. Due to the very good retention capacity of dissolved salts, RO has long been a tried and tested membrane process and is already state of the art in sea and brackish water desalination.


Our reverse osmosis systems can be adapted to the various requirements for pure water quality and can also be used in two-stage operation. The membrane type is always determined after requirements. We use our many years of experience in the design of reverse osmosis system based on the water analysis, the optimal variant for the customer.

Greentech tailor-made reverse osmosis systems

  • - Tailor-made for the respective application
  • - mounted on a frame
  • - modular system
  • - easily expandable depending on your production needs
  • - Use of low energy membranes
  • - Pump with frequency converter
  • - Energy recovery from concentrate flow (for seawater desalination)
  • - Complete solutions with pre- and post-treatment and with measurement and control technology on requests

Greentech reverse osmosis containerized plants

  • - The systems are mounted in containers (10, 20 or 40 ft container)
  • - Complete package is possible with pre- and post-treatment
  • - Different equipment is possible according to the different requirements
  • - The container contains the connected pipelines between the individual parts s
  • - Air-cooled, insulated containers or containers with heating equipment are possible


  • - A high system yield of up to 85% is possible
  • - Production of the ultrapure water: remove approx. 99% of the organic substances, colloids, the dissolved salts and the bacteria from the treated process wastewater
  • - energy-efficient systems with low-energy membranes
  • - low operating costs due to lower operating pressure and frequency-controlled pump
  • - Small footprint
  • - Simple and safe operation


  • - Elimination of polyvalent ions
  • - Removal of color
  • - Softening