FILTRATION SYSTEM

Generally, problems of a RO system can be divided into 3 categories: pressure, flow and salt rejection. The following lists of questions help to identify possible causes for these problems.

Multi-Media Sand Filter

Function : To trap and remove suspended solids, silt, mud, slime and fine particle size ≥ 10µm (0.01mm) in raw water. Multi layer sand filter provide better filtration efficiency compare to conventional sand filter.
Filtration media : Anthracite, sand, granet
Backwash modes : Manual multiport valve Automatic by pre-set multiport controller or PLC

Activated Carbon Filter

Function : Remove of contaminants in water such as chlorine, solvents, pesticides, odors, dissolved and suspended organics. Surface of activated carbon granules are highly porous, when raw water are flow through, contaminants are absorb or stick to the surface of activated carbon.
Filtration media : Coconut shell activated carbon granules
Backwash modes : Manual multiport valve Automatic pre-set multiport controller or PLC

Water Softener

Function : Remove hardness ions in raw water as to prevent scale formation. The most common of these ions include calcium (Ca²+), magnesium (Mg2+) dissolved iron (Fe2+) and manganese (Mn2+). Water softener using ion-exchange resin media that has functional groupswith strongly negative charge characteristics, thus gives the resin the ability to attract various positively charged hardness ions.
Filtration media : Strong acid cation softener resin
Regeneration modes : Automatic four regeneration steps by pre-set multiport and controller
Regenerant : Sodium chloride (NaCl)

Iron Removal Filter

Function : Remove iron in raw water. Iron in ferrous state (Fe2+) is soluble, if it is oxidized to its ferric state (Fe3+), it is insoluble and can foul RO membrane. Beside that, high iron concentration in raw water can rust pump, piping and other iron components.
Filtration media : Iron removal media.
Backwash modes : Manual multiport valve Automatic pre-set multiport controller or PLC

Bag Filter

Function : To trap and remove suspended solids, silt, mud, slime and fine particle size ≥ 1µm (0.001mm) in raw water. Multi layer sand filter provide better filtration efficiency compare to conventional sand filter.
Filtration media : Filter bag with micron size range from 1000µm to 1µm
Backwash modes : Washable and made of high quality fabric.

Cartridge Filter

Function : Remove mud, silt, suspended solid and fine particle size up to 0.1µm. An ideal pre-filter for RO system.
Filtration media : PP melt blown cartridge, string wound cartridge, pleated cartridge
Backwash modes : Replaceable. Micron size range from 50µm to 0.1µm.


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