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RO and NF Membrane Element

Product Brochures

KeenSen Technology Co., Ltd.

Ⅰ. Company ProfileKeenSen Technology Co., Ltd.,

established in March, 2008, is a high-tech

company, specializing in professional separation

membrane production and applications with its

head office located in the High-tech Industrial

Development District in Changsha, China.

KeenSen introduced advanced membrane

technologies and equipment from US for

manufacturing reverse osmosis membrane and

nanofiltration membrane. It accelerated the

process of domestic separation membrane industry development to be among the best in the world.

The RO and NF membranes and related elements of KeenSen can be widely used in more than 50

industries, including water treatment projects, environmental restoration project etc. They are green

products serving the construction of “Two-Oriented Society” and considered as high tech core products

which will help human race to up against resource shortages and environment pollution.

KeenSen always keep analyzing and digging the potential demands of customer to improve the

“one-stop customer centralized” service system. With this concept in mind, we created a worry free service

brand, providing the customer with characteristic, fast, quality and credible service through unified service

training. The customers can truly experience KeenSen’s quality persistent and responsibility.

Ⅱ. Industrial RO Membrane ElementA. Brackish Water Membrane Element(BW-8040, BW-4040), Fouling Resistant Membrane

Series(BW-8040FR, BW-4040FR)

Model Active

Membrane

Area(ft2(m2)

Operating

Pressure

psi(MPa)

Permeate Flow

GPD(m3/d)

Stabilized Salt

Rejection (%)

Min. Salt

Rejection (%)

BW-8040 400(37.2) 225(1.55) 10500(39.7) 99.5 99.0

BW-4040 78(7.2) 225(1.55) 2600(9.8) 99.5 99.0

BW-8040FR 365(34.0) 225(1.55) 9500(35.9) 99.5 99.0

BW-4040FR 72(6.7) 225(1.55) 2400(9.0) 99.5 99.0

Test Condition

Temperature of Testing Solution …………...................25 °C

Concentration of Testing Solution (NaCl)……..............2,000ppm

PH Value of Testing Solution ………………..................7.5-8

Recovery Rate of Single Membrane Element…...........15%

Extreme Operation Conditions

Max. Working Pressure…………………........................... 600 psi (4.14MPa)

Max. Feedwater Temperature…………………….............. 45°C

Max. Feedwater SDI………………….................................5.0

Free Chlorine Concentration of Feedwater………………...0.1mg/L

pH Range of Feedwater during Continuous Operation….. 3~10

pH Range of Feedwater during Chemical Cleaning……....2~12

Max. Pressure Drop of Single Membrane Element…….....10psi (0.07Mpa)

The Application Scope

1. The BW series is mainly used to the treatment of brackish water..

2. The FR series is mainly applied to the treatment and reuse of surface water, industrial wastewater, and

the salt rejection of moderate-high brackish water.

3. FR membrane can greatly increase the resistance of the dirt plugging of system and reduce the cleaning

frequency, etc.

4. Standard operating pressure is 1.55MPa. In actual project application, the operating pressure is affected

by the concentration of water quality, system recovery rate, etc.

Product Advantage

The BW Series is stable in performance with wide application range, high salt rejection rate, high flux,

extended service life, can save the equipment investment and operating expense.

B. Ultra Low Pressure Membrane Element Series (ULP-8040, ULP-4040).High Rejection Membrane

Elements(ULP-8040HR, ULP-4040HR)

Model Active

Membrane

Area(ft2(m2)

Operating

Pressure

psi(MPa)

Permeate Flow

GPD(m3/d)

Stabilized Salt

Rejection (%)

Min. Salt

Rejection (%)

ULP-8040 400(37.2) 150(1.05) 10500(39.7) 99.2 98.5

ULP-4040 78(7.2) 150(1.05) 2200(8.3) 99.2 98.5

ULP-8040HR 400(37.2) 150(1.05) 9500(35.9) 99.5 99.0

ULP-4040HR 78(7.2) 150(1.05) 2000(7.6) 99.5 99.0

Test Condition

Temperature of Testing Solution …………....................25 °C

Concentration of Testing Solution (NaCl)……...............1,500ppm

PH Value of Testing Solution ………………...................7.5-8

Recovery Rate of Single Membrane Element…............15%


Max. Working Pressure…………………........................... 600psi (4.14Mpa)








1. The ULP membrane is mainly applied to the salt rejection of low-salt water.

2. The HR series have the higher rejection and low working pressure, compare with other model.

2. The standard operating pressure is 1.05 MPa. In actual application, operating pressure is affected by the

density of water quality and the system recovery rate, etc.

C. Extremely Low Pressure Membrane Element (XLP-8040 Membrane, XLP-4040)

ModelActive Area

ft2(m2)

Operating

Pressure

psi(MPa)

Permeate Flow

GPD(m3/d)

Stabilized Salt

Rejection %

Min. Salt

Rejection %

XLP-8040 400(37.2) 100(0.7) 9500(35.9) 99.0 98.0

XLP-4040 78(7.2) 100(0.7) 2000(7.6) 99.0 98.0

Test Condition


Concentration of Testing Solution (NaCl)……...............500ppm












1. The XLP membrane is mainly applied to the low salt raw water.

2. The standard operating pressure is 1.05 MPa. In actual application, the operating pressure is affected by

density of water quality and the system recovery rate, etc.

Ⅲ. Industrial Nanofiltration Membrane ElementA. High Salt Rejection NF1-8040, NF1-4040 Membrane Element Series

ModelActive Area

ft2(m2)

Operating

Pressure

psi(MPa)

Permeate Flow

GPD(m3/d)

Salt Rejection %

NaCl MgSO4

NF1-8040 400 (37.2) 70(0.48) 9000 (34.1) 60~80 >96

NF1-4040 78 (7.2) 70(0.48) 1750 (6.6) 60~80 >96

Test Condition



Concentration of Testing Solution (MaSO4)..................2,000ppm

Operating Condition.......................................................70psi (0.48MPa)












1. NF1 Series is widely used in direct drinking water, spring water and low pressure boiler softened water

system.

2. The standard operating pressure is 0.48MPa. In actual projects, the operating pressure is influenced in

some aspects, such as the quality of salt water with different salinity levels and the rate of system recovery,

etc.

B. High Flux Nanofiltration Membrane Element Series (NF2-8040, NF2-4040)

Model

Active

Membrane

Area (ft2(m2)

Operating

Pressure(ps

i(MPa))

Permeate Flow

GPD(m3/d) Salt Rejection (%)

NaClMgSO4

NF2-8040 400 (37.2) 70(0.48) 11000(41.7) 30~50 96±2

NF2-4040 78 (7.2) 70(0.48) 2200(8.3) 30~50 96±2

Test Condition



Concentration of Testing Solution (MgSO4)..................2,000ppm













1. The NF2 membrane series can partially soften the organics of surface water and groundwater and its flux

is large.

2. The ions retention rate of NF2 membrane is lower than that of NF1 membrane element’s.

3. The standard operating pressure is 0.48MPa. In actual projects, the operating pressure is influenced in

some aspects, such as the quality of salt water with different salinity levels and system recovery rate, etc.

C. Material Separation Nanofiltration Membrane Series(NF-8040F, NF-4040F)

ModelActive Area

ft2(m2)

Operating

Pressure

psi(MPa)

Permeate Flow

Rate GPD(m3/d)

Salt Rejection

Rate %

MgSO4

NF1-8040F 400（37.2） 70(0.48) 9000（34.1） 98

NF1- 4040F 78（7.2） 70(0.48) 1750（6.6） 98

Test Condition


Concentration of Testing Solution (MgSO4)..................2,000ppm









PH Range of Feedwater during Continuous Operation….. 3~10

PH Range of Feedwater during Chemical Cleaning……....2~12



1. This membrane model is mainly used for the removal or concentration of dye, removal of heavy metal

and the concentration and desalination of whey protein.

2. Higher than divalent ions are preferentially trapped, the retention of monovalent ions will be affected by

the material liquid concentration.

3. This membrane model is widely applied to desalination of surface water, landfill leachate, dyeing

wastewater, etc. Meanwhile, this membrane model has a good effect on discoloring reaction and it

contributes to the COD removal, which is up to 95%.

D. Material Separation Nanofiltration Membrane Element Series (NF2-8040F, NF2-4040F).

ModelAffective Area

ft2(m2)

Operating

Pressure

psi(MPa)

Permeate Flow

Rate GPD(m3/d)

Salt Rejection Rate %

MgSO4

NF2-8040F 400(37.2) 70(0.48) 11000(41.7) 96

NF2-4040F 78(7.2) 70(0.48) 2200(8.3) 96

Test Condition


Concentration of Testing Solution (NaCl)......................2,000ppm

Concentration of Testing Solution (MgSO4)…………….2,000ppm













1. This membrane model is mainly applied to the removal or concentration of dye, the removal of heavy

metal, the recycling of sodium chloride solution, the treatment of landfill leachate and coking wastewater.

2. Higher than divalent ions are preferentially trapped, the retention of monovalent ions will be affected by

the material liquid concentration.

Ⅴ.KeenSen 4", 8" Membrane Element Size Display4"

8"

A B C D

40"(1016.1mm) 3.9"(99.0mm) 0.75" (19.1mm) 1.05" (26.7mm)

A B C

40.0"(1016.1mm) 7.9"(201mm) 1.125"(28.6mm)

Ⅵ. KeenSen Domestic Nanofiltration Membrane Element(1) NF1-75, 100, 200, 300GPD Model

ModelActive Area

ft2(m2)

Operating

Pressure

psi(MPa)

Permeate Flow

GPD(m3/d)Salt Rejection %

NF1-1812-75 4(0.37) 70 (0.48) 75(0.28) 70±10

NF1-2012-100 5(0.46) 70(0.48) 100(0.38) 70±10

NF1-2812-200 10(0.93) 70(0.48) 200(0.76) 70±10

NF1-3012-300 14(1.30) 70(0.48) 300(1.14) 70±10

Test Condition


Concentration of Testing Solution (Tap Water)......................250ppm

Operating Condition......................................................70psi (0.48MPa)











(2) NF2-75, 100, 200, 300, 400GPD Model

ModelActive Area

ft2(m2)

Operating

Pressure

psi(MPa)

Permeate Flow

GPD(m3/d)

Salt Rejection

Rate %

NF2-1812-75 4(0.37) 70(0.48) 75(0.28) >30

NF2-2012-100 5(0.46) 70(0.48) 100(0.38) >30

NF2-2812-200 10(0.93) 70(0.48) 200(0.76) >30

NF2-3012-300 14(1.30) 70(0.48) 300(1.14) >30

NF2-3013-400 16(1.48) 70(0.48) 400(1.51) >30

Test Condition


Concentration of Testing Solution (Tap Water)..............250ppm












Ⅶ. KeenSen Domestic Reverse Osmosis Membrane Element

Test Condition


Concentration of Testing Solution (Tap Water)......................250ppm












ModelAffective Area

ft2(m2)

Operating

Pressure

psi(MPa)

Permeate

Flow

GPD(m3/d)

Stable

Rejection

Rate %

Lowest

Rejection

Rate %

RO-1812-50 3.5(0.32) 60(0.41) 50(0.19) 97 96

RO-1812-75 4(0.37) 60(0.41) 75(0.28) 97 96

RO-2012-100 5(0.46) 60(0.41) 100(0.38) 97 96

RO-2812-200 10(0.93) 60(0.41) 200(0.75) 97 96

RO-3012-300 14(1.30) 60(0.41) 300(1.12) 97 96

Adds: No.6, Lutian RD, Lu Valley, Changsha, Hunan, China 410205

Tel: 86-31-8992869 Fax: 86-31-8992600

Mobile:86-18874055961

Website: www.keensen.com/en

http://www.keensen.com/en

Documents

f03.s.alicdn.comf03.s.alicdn.com/kf/HLB1P9qMHFXXXXcfXFXX.PRXFXXXe.pdf · 2019-07-30 · 2 1 0 7 bbbbbbb 9 5 > 6 2 + ! bbbbbbbb =, c 2 + ! $# bbbbbbb , + + ! bbbbbb ? : 7" ( + ! )