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Membrane Filtration - RO Systems / Reverse Osmosis Systems Model RO-150 through RO-10000

Reverse Osmosis systems from Ecologix Systems produce high quality water from municipal and well water. The highest quality components and the latest technology is used in the production and design of our reverse osmosis systems. We offer systems for purified water treatment, seawater, industrial seawater, brackish water, car wash applications and more.

Reverse Osmosis....
While ordinary filters use a screen to separate particles from water streams, a Reverse Osmosis System uses a semi-permeable membrane to separate a high percentage of dissolved molecules. Only certain types of molecules, like water, can pass through the membrane. Other molecules, like salts, do not pass through the membrane and are left behind.

Semi-Permeable Membranes
A Semi-Permeable Membrane is very similar to human skin. The membrane is made of thin, multi-layered sheets with microscopic pores that let water pass through while acting as a barrier to stop dissolved particles like salt.

RO-150 through RO-1200 Series
RO-150 RO-250 RO-600 RO-1200

RO-1800 through RO-10000 Series
RO-1800 RO-3600 RO-5800 RO-7500 RO-9000

Specifications for RO-150 through RO-10000 GPD
RO Industrial Systems 150-10000 GPD Specifications
Model Production* Membrane Size Membrane Quantity per system
GPM GPD
RO 150 0.10 150 2.5 x 14 1
RO 250 0.17 250 2.5 x 21 1
RO 600 0.42 600 2.5 x 40 1
RO 1200 0.84 1200 2.5 x 40 2
RO 1800 1 1800 4 x 40 1
RO 3600 2 3600 4 x 40 2
RO 5800 3 5800 4 x 40 3
RO 7500 4 7500 4 x 40 4
RO 9000 5 9000 4 x 40 5
RO 10000 6 10000 4 x 40 6
*Based on feed water with TDS of 1000 ppm and temperature of 25°C (77°F) / *Cleaning stations are recommended to extend the life of all membranes.
Osmosis
In figure A below, under normal pressure water will pass from the side of the membranes with lower concentration to the side with the higher concentration to reach equilibrium. (see figure B)
Equilibrium
Osmotic Pressure is the pressure required to stop water flow and reach equilibrium. When the applied pressure equals the osmotic pressure, the water flow stops. When applied pressure exceeds the osmotic pressure, reverse osmosis will take place. In reverse osmosis, water passes through the membrane to the dilute solution, leaving behind dissolved particles. This process purifies the water, often reducing total dissolved solids content by 99%.
Reverse Osmosis
Ecologix RO Systems use semi-permeable spiral wound, thin film membranes to separate and remove dissolved solids, organic material, pyrogens, submicron colloidal matter, viruses, and bacteria from water. Feed water is delivered under pressure to the membranes, where reverse osmosis takes place. Water permeates the minute pores of the membrane and is delivered as purfied product water. The impurities in the water do not pass through the membrane, and are instead concentrated in the reject stream that is flushed to the drain.
ro figure a ro figure b ro figure c
element cross section image cut out

The diagram to the far left shows the layers used to construct a typical RO Element. It also shows the flow of the water and how it permeates through the element.

To the right is a photograph of a cut-out cross section of an RO element.

ro diagram

The Reverse Osmosis Membrane Element
element diagram

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