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RO Membrane Technology

Reverse osmosis (RO) is a water purification technology that uses a semipermeable membrane to remove ions, molecules, and larger particles from drinking water.

Reverse osmosis membrane (RO) technology is one of the most powerful tools to solve the world water crisis. We have rich experiences in RO technology applied in water &waster treatment .Desalination using RO technology can be achieved by removing salt from seawater. The combination of UF and RO technology in sea water desalination can be customized according to different capacity.

In reverse osmosis, an applied pressure is used to overcome osmotic pressure, a colligative property, that is driven by chemical potential differences of the solvent, a thermodynamic parameter.

The reverse osmosis membrane technology can remove many types of dissolved and suspended species from water, including bacteria, and is used in both industrial processes and the production of potable water. The result is that the solute is retained on the pressurized side of the membrane and the pure solvent is allowed to pass to the other side. To be "selective", this membrane should not allow large molecules or ions through the pores (holes) but should allow smaller components of the solution (such as solvent molecules) to pass freely.

Reverse osmosis

Advantages of reverse osmosis membrane technology

1. Removes nonionic impurities and dissoved solids (i.e.organics,silica,bacteria)
2. Reduction of hazardous chemical storage and handling associated with ion exchange
3. Reduces loading on ion exchange systems:
  • Extends run period
  • Extends resin life
  • Reductes operating costs

Application range of reverse osmosis membrane technology

  • Desalination
  • Dehydration
  • Concentration
  • Remove COD/BOD
JIUWU has more than 20-year experiences in ceramic membrane technology. We work to provide high-quality ceramic membrane and technology service to our customers!

JIUWU Membrane Technology

  • UF Membrane Technology

    UF Membrane Technology

    November 15, 2018Ultrafiltration (UF) is a variety of membrane filtration in which forces, such as pressure or concentration gradients, cause separation through the semi-permeable membrane. High molecular weight suspe...view
  • NF Membrane Technology

    NF Membrane Technology

    November 15, 2018Nanofiltration (NF) is a relatively recent membrane filtration process used most often with low total dissolved solids water such as surface water and fresh groundwater, with the purpose of softening ...view
  • MF Membrane Technology

    MF Membrane Technology

    November 15, 2018Microfiltration (commonly abbreviated to MF) is a type of physical filtration process where a contaminated fluid is passed through a special pore-sized membrane to separate microorganisms and suspended particles from process liquid.view

JIUWU Membrane Products

  • Ultrafiltration Ceramic Membrane Element

    Ultrafiltration Ceramic Membrane Element

    October 12, 2018It could remove emulsified oils, metal hydroxides, colloids and other large molecular weight materials from water and other solutions.view
  • EDI (Ultra-Pure Water System)

    EDI (Ultra-Pure Water System)

    October 12, 2018Electrodeionization (EDI) is a kind of pure water manufacturing technology which combines ion exchange technology.view
  • SS Membrane Module

    SS Membrane Module

    October 12, 2018JIUWU could produce the extra large housing as customer demand, such as loading over 91 pcs membranes.view
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