Membrane/Filter BUSINESS

Membrane

In general, Filtration means separating two or more types of components from a fluid, and the concept of a general filter refers to separating undissolved particles (solids) from a fluid.

On the other hand, the concept of the membrane filter is much more microscopic than the concept of general filtration, and it includes a special function that enables the separation of dissolved-solids or mixed gases.

Membrane separation process is different from general filtration process

It has semi-permeable and perm-selectivity.
Separation/fraction is possible from Sub-Micron size to the range of molecular weight size range.
It is possible to separate gas-gas, gas-liquid and liquid-liquid as well as liquid-gas, gas-solid separation among fluids.

UF Membrane(Ultra Filtration, Ultrafiltration membrane)

Description

It is a hollow fiber membrane made of polyacrylonitrile (PAN). It is excellent for removing suspended substances, various bacteria, viruses, and polymers in raw water. It has high hydrophilicity and excellent fouling resistance. It is suitable for treating large amounts of impurities. The effective area per unit volume is wide, so it shows high permeability, and it is compact when manufacturing the system. Our UF Membrane can be selectively removed and concentrated such as molecular weight 30,000 dalton, 100,000 dalton, and 300,000 dalton.

Application

(For water purification) Removal of bacteria and turbidity from underground water, valley water, river water such as small-scale water facilities and village water supply
(Material concentration) Silica sol, graphene, used for concentrating cosmetic ingredients and replacing solvents
(Heavy water reuse) Used to remove turbidity of rainwater and reuse
(Wastewater treatment and reuse) Used as a reverse osmosis membrane pretreatment when reused for semiconductor processing wastewater, etc.
(Seawater desalination pretreatment) Used as a pretreatment for seawater desalination reverse osmosis membrane

Advantages and disadvantages

Advantage : Hydrophilic / fouling resistance / high flow rate / optional use of pressure-resistant and external pressure
Disadvantage : Lower strength compared to other materials (PVDF, PTFE, etc.) / High price compared to Chinese products

Size of each market (Source: Ministry of Environment 2017 World Water Day Resource Book)

Unit: KRW 100 million

Field	2013년	2051년(Forecast)
Water resources	27,693	34,602
tap water	68,116	89,226
sewage	73,112	146,459
water purifier	18,000	38,406
drinking spring water	5,199	27,099
seawater desalination	550	707
industrial water	10,030	23,303

Spec

Product Specification

→ Test Use : HUF1010/HUF2010

→ Industrial Use : HUF3040/HUF8050
Separator diameter (inner/outer diameter, mm) : 0.85/1.55(N), 1.5/2.25(B)
Molecular weight fraction (Dalton) : 10,000 ~ 300,000
Maximum operating temperature (℃) : 35
Range of PH : 3 ~11

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