OSMO Membrane Systems GmbH
Siemenssstrasse 42 D-70825, Germany

OSMO develops and implements valuable industrial membrane separation plants for a multitude of process applications as well as for water treatment.

Hereby, our strength are customized solutions:

SPECIAL PLANTS FOR THE CHEMICAL INDUSTRIES

Micro filtration, ultra filtration, nano filtration, reverse osmosis, electro dialysis

HIGH PRESSURE REVERSE OSMOSIS

for maximised concentration of brine and organic solutions before a further thermical treatment (evaporation)

INNOVATIVE WATER TREATMENT

for extraction of boiler feed water

By micro and ultra filtration mainly macro molecules und small particles as well as suspensions and emulsions are separated. The passages between micro filtration and ultra filtration are fluent: Membranes of a pore size between 0,1µm and a few µm are associated with micro filtration, membranes of a pore size between 0,01µm and 0,1µm are associated with ultra filtration. The working pressure of micro filtration is between 0,5 bar (approx. 7 PSI) and 5 bar (approx. 73 PSI), the working pressure of ultra filtration is between 0,5 bar (approx. 7 PSI) to 10 bar (approx. 145 PSI).

The separation effect of the micro and ultra filtration is based mainly on sieve effects, i.e. particles with a diameter bigger than the average pore size of the membrane are retained. Additionally, also effects of solubility and diffusion are of importance.

Depending on the application, various module designs are suitable. The most common designs are spiral wound modules, tubular modules as polymeric or ceramic element, plate modules, capillary modules and hollow fiber modules. These designs are distinguished from each other by the hydraulic diameter and the related specific package density.

Field of applications of micro filtration:

• Separation of pickling sludge
• Separation of abrasive particles, e.g. hydroxides, CaCO3, grinding particles
• Separation of activated sludge
• Separation of colloidal components out of acids and brines
• Separation of catalysts
• Pre-concentration of suspensions

By ultra filtration – similar to micro filtration -  mainly macro molecules und small particles as well as suspensions and emulsions are separated. The passages between micro filtration and ultra filtration are fluent: Membranes of a pore size between 0,1µm and a few µm are associated with micro filtration, membranes of a pore size between 0,01µm and 0,1µm are associated with ultra filtration. The working pressure of ultra filtration is 0,5 bar (approx. 7 PSI) to 10 bar (approx. 145 PSI).

The separation effect of the ultra filtration is based mainly on sieve effects, i.e. particles with a diameter bigger than the average pore size of the membrane are retained. Additionally, also effects of solubility and diffusion are of importance.

Depending on the application, various module designs are suitable. The most common designs are spiral wound modules, tubular modules as polymeric or ceramic element, plate modules, capillary modules and hollow fiber modules. These designs are distinguished from each other by the hydraulic diameter and the related specific package density.

Field of applications of ultra filtration

• Separation of particles, e.g. for conditioning of surface water or as pre-treatment of an reverse osmosis plant
• Oil-water-separation
• Separation of activated sludge – Membrane bio reactor (MBR)
• Pre-concentration of suspensions
• Separation of organic molecules
• Separation of endotoxins and pyrogenics or degermination for pharmaceutical applications
• Recovery of dyes at paper industries
• Degreasing bath conditioning
• Concentration of electrodeposition paint
• Concentration of water-soluble dyes and lacquers
• Conditioning of surface water

The separation effect of the nano filtration is based, like at the reverse osmosis, on the different solubility of the components in their solvent. Hereby, mono-valent ions, like e.g. Na+ or Cl-, are retained only partially, however multi-valent ions, like e.g. Mg2+, Ca2+, So42-, PO42-, are mainly retained .

Our experience in selecting of membranes allows individual solutions for various tasks of process water conditioning, environmental technologies and as well for the treatment of process solutions. Together with OSMO Membrane Systems, you will get a costumized solution for nearly all topics of separation.

Field of application of nano filtration:

• Conditioning of acids, e.g. separation of metals and organic molecules
• Conditioning of bases, e.g. separation of organic molecules in celluse or food industries
• Reduction of the CSB value
• Separation of dye, humic substances, and much more
• Separation of radioactive substances (decontamination), e.g. uranium
• Softening and partial desalination (reduction of calcium and magnesium content) of water
• Reduction of phosphate content
• Decarbonisation
• Separation of sulfates
• Desalination of solutions, e.g. separation of NaCl out of dyes
• Concentation of process solutions