Filtration/Demineralisation

 

Filtration is the process of separation of solids from liquids and gases in the partitions of the porous filter. The filtration process can be divided into:

 
  • mikro­filtration, the pores of the porous membrane have a size of 0.2-10 μm, so that the process is carried out at a pressure of 0.1-0.3 MPa. This allows you to filter out colloids, suspended solids and bacteria.

 

  • ultra­fil­tra­tion, membrane pores are typically 2-90 nm. Ultrafiltration allows for separation of real solutions, separation of gases from gas mixture, but unfortunately it is a time consuming process and requires high pressures.

 

  • nano­fil­tration, membrane pores less than 2 nm. Nanofitration allows to retain organic compounds having with a molecular weight greater than 200-300 Da) and ions of two or more valences, and passed to a large extent monovalent ions. Nanofitration required process under pressure in the range of 1-3 MPa.

 

Demi/sterile water solutions

 

Demineralized water can be achieved in several ways, but the most common approach is the use of ion exchange.

 

Ion exchange process is carried out in ion exchangers for the removal of cations and anions from the treated demineralized water. The purpose of demineralization is to remove all ions. The main element of the ion exchange ion resin with positive or negative charge.

 

A typical system of demineralization by means of ion exchange is comprised of two tanks. One of them comprises a cation exchange resin (cation) in the hydrogen form (H +) and the other an anionic resin (anion) in the form of hydroxyl (OH-). Subjected to the process water passes through a cationic resin, wherein the positive ions (cations) are replaced by hydrogen ions, and then is directed to the column anion, where all negatively charged ions are exchanged for hydroxide ions. The hydrogen and hydroxyl ions combine to form water.

 

This system can be extended with third tank consisting a weak base anion exchange resin, cation exchanger located between the tank and the tank anion. Shall also apply to additional CO2 removal systems.

 

The process of reverse osmosis (RO) allows to remove the ions, bacteria, sugars, proteins and other components having a molecular weight in the range of 150-250 Da (Dalton). Is forced on the diffusion of water through a semipermeable membrane with a high pressure pump 3.4 to 69 bar. This process removed 99.9% of the viruses and bacteria.

 

UV sterilization ensures sterile water without changing the composition of the physico-chemical and organoleptic quality of water. During the manufacturing of sterile water is applied technology of sterilizing coils UV-C.

 

The markets we operate, in many cases, require the delivery of dedicated filtration stations. 

 

 

We will build and deliver in accordance with the perfromance requirements and fited in terms of configuration systems:

 

  • water filtration/demineralisation,
  • air filtration as well as other gas media filtration,
  • water, air and otehr gases sterilisation trough filtratition proces. 

 

Conditions imposed by the customer allow us to match filtration technology, to minimize energy consumption, optimize the construction of an installation. 

 

We work with reputable suppliers of cartridges and filtration membranes ensure quality, durability and low operating costs.