• RO/UF Membranes Manufacturers, RO/UF Membranes Factory, China RO/UF Membranes
  • RO/UF Membranes Manufacturers, RO/UF Membranes Factory, China RO/UF Membranes
  • RO/UF Membranes Manufacturers, RO/UF Membranes Factory, China RO/UF Membranes
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RO/UF Membranes

RO/UF Membranes
Water treatment processes employ several types of membranes. They include micro-filtration (MF), Ultrafiltration (UF), reverse osmosis (RO), and nanofiltration (NF) membranes. MF membranes have the largest pore size and typically reject large particles and various microorganisms.

UF membranes have smaller pores than MF membranes and, therefore, in addition to large particles and microorganisms, they can reject bacteria and soluble macro-molecules such as proteins.

RO membranes are effectively non-porous and, therefore, exclude particles and even many low molar mass species such as salt ions, organics, etc.

NF membranes are relatively new and are sometimes called “loose” RO membranes. They are porous membranes, but since the pores are on the order often angstroms or less, they exhibit performance between that of RO and UF membranes.

RO/UF Membranes

RO/UF MEMBRANES

Most MF, UF, RO, and NF membranes used in industrial and commercial ro system are synthetic organic polymers. MF and UF membranes are often made from the same materials, but they are prepared under different membrane formation conditions so that different pore sizes are produced. 


commercial ro system


Typical MF and UF polymers include poly(vinylidene fluoride), polysulfone, poly(acrylonitrile) and poly(acrylamide)-poly(vinyl chloride) co-polymers. Poly (ether sulfone) is also commonly used for UF membranes. MF membranes also include cellulose acetate-cellulose nitrate blends, nylons, and poly (tetra-fluoroethylene). RO water plant membrane (RO membranes) is typically either cellulose acetate or polysulfone coated with aromatic poly-amides for ro membrane purification system. NF membranes are made from cellulose acetate blends or poly-amide composites like the RO water plant membranes, or they could be modified forms of UF membranes such as sulfonated polysulfone.

 

ro membrane purification system


At this figure, you can see the RO water plant membrane working principle. Industrial RO membrane purification systems use 8040 size membranes. Commercial Ro system uses 4040 size membrane.

 

Vontron RO water plant membrane Membrane for industrial and commercial RO system

RO/UF MEMBRANES

Model

Salt removing rate                           (%)

Average water production

Test Conditions



gpd(m3/d)

Test pressure

Test concentration

Recovery(%)

Psi(Mpa)

NaCI(ppm)

ULP1812-50G

97.5

50(0.19)

60 (0.41)

250

15

ULP1812-75G

97.5

75(0.28)

60 (0.41)

250

15

ULP1812-100G

95

100(0.38)

60 (0.41)

250

15

ULP2812-200G

97

200(0.76)

100 (0.69)

500

15

ULP3012-300G

97

240(0.91)

100 (0.69)

500

15

ULP2521-300G

99

300  (1.13)

150 (1.03)

500

15

ULP3032-400G

97

420(1.60)

100 (0.69)

500

15

ULP31-4021

98

1000(3.78)

150 (1.03)

1500

8

ULP31-4040

99.4

1900(7.2)

150 (1.03)

1500

15

ULP21-4040

99

2400(9.1)

150 (1.03)

1500

15

ULP32-8040

99.5

10500(39.7)

150 (1.03)

1500

15

LP22-8040

99.5

10500(39.7)

225 (1.55)

2000

15

LP21-4040

99.5

2400(9.1)

225 (1.55)

2000

15

SW21-4040

99.5

1400(5.3)

800 (5.5)

32800

8

SW11-8040

99.7

5000(18.9)

800 (5.5)

32800

8

FR11-4040

99.5

2200(8.3)

225 (1.55)

2000

15

FR11-8040

99.5

9600(36.3)

225 (1.55)

2000

15


DuPont Dow Filmtec Membrane for ro membrane purification system

Model

Salt removing rate                             (%)

Average water production

Test Conditions



gpd(m3/d)

Test pressure

Test concentration

Recovery(%)

Psi(Mpa)

NaCI(ppm)

TM30-1812-50

98

50(7.9L/H)

50(3.4)

250

15

BW60-1812-75

98

75(12L/H)

50(3.4)

250

15

TM30-1812-100HR

98

100(16L/H)

50(3.4)

250

15

TW30-3012-500

98

500(78.8L/H)

50(3.4)

250

15

BW30LCLE-4040

99.7

2900(11)

125(10)

2000

15

BW30-4040

99.5

2400(9.1)

50(3.4)

250

15

BW30-365IG

99.5

9500(36)

225(1.55)

2000

15

BW30-400IG

99.5

10500(40)

225(1.55)

2000

15

BW30FR-365

99.5

9500(36)

225(1.55)

2000

15

BW30FR-400

99.5

10500(40)

225(1.55)

2000

15

NF270-4040

CaCI2 40-60    MgSo4 <3

CaCI2 2925             MgSo4 2500

70(0.48)

2000

15

NF270-400

CaCI2 40-60 %   MgSO97%

CaCI2 14700(55.6)         MgSo4 12500(47.3)

70(0.48)

2000

15

SW30HRLE-4040

99.75

1600(6.1)

800(55)

32000

8.8

SW30HRLE-400

99.75

7500(28)

800(55)

32000

8.8


If you want to use other brand ro water plant membrane we can also supply for industrial and commercial ro system application.


Chunke has also UF membrane, we have our own brand and also well known brand. UF membrane is different than commercial ro system membranes. You can see the ro membrane purification system’s membrane and ultra-filtration system’s membrane pores size as micrometers.


ro water plant membrane


Commercial ro system membrane can reduce TDS but UF membranes does not reduce TDS because of the pore size. If you want to reduce your water TDS, you should us RO membrane purification system.



commercial ro system


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