RO UNIT CONCENTRATOR

A membrane is a selective barrier, a few hundred nanometres to a few millimetres thick, which, under the effect of a transfer force, allows or prevents the passage of certain components between two media that it separates. They are used to separate and/or concentrate particles, molecules, micro-organisms or ionic species in solution in a liquid. The advantage of these processes lies in their cold operation and low energy and chemical consumption.

There are 4 pressure gradient membrane processes: microfiltration (MF), ultrafiltration (UF), nanofiltration (NF) and reverse osmosis (RO). They differ in the size and type of species they can separate:
 

• Microfiltration and ultrafiltration completely eliminate suspended solids down to a threshold of 0.01µ. They are mainly used for surface water clarification or effluent recycling.
• Nanofiltration is an intermediate process between ultrafiltration and reverse osmosis, used to remove divalent ions, with a threshold of 0.001µ. This technology is used for softening, partial desalination of brackish water and drinking water production.
• Reverse osmosis is the most efficient membrane technology. It is capable of eliminating all dissolved matter. It is mainly used for the desalination of seawater and the production of demineralised process water. The osmosis unit is also used to supply steam boilers and cooling towers to reduce energy, water and treatment product consumption. The osmosis unit can be single or double pass, depending on the water quality required.
• The concentrator recycles the effluent from an osmosis plant, increasing the plant's overall efficiency by up to 90% under certain conditions. 

We can help you calculate the return on investment (ROI), and reverse osmosis can also be financed by Energy Savings Certificates.