Nanofiltration membrane elements NF30-400HP
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Nanofiltration membrane elements NF30-400HP

Item No.: BKF-NF30-400HP
NF30-400HP high-pressure nanofiltration membrane is suitable for high-intensity desalination and concentration applications, with excellent pressure resistance and high removal rate.
Description
Description

Product Introduction

It has a strong selective interception ability for low-valent ions and high-valent ions, and also has an extremely low operating pressure. It can be widely used in drinking water purification and desalination, concentration and separation of sugars, various amino acids, organic acids, etc.; it can be used for desalination or decolorization of surface water, landfill leachate, and printing and dyeing wastewater; it can also be widely used in the fields of pharmaceutical extraction, salt chemical industry, material concentration, and wastewater resource utilization. NF30-400HP uses high-pressure resistant components such as polystyrene central tube and end cap packaging, which is suitable for high-pressure nanofiltration salt separation (maximum tolerance pressure 8.27 MPa).

Product Specifications Performance Parameters Table

Model

NaCl

Removal rate

MgSO4

Removal rate

NaCl solution water production

Water production of MgSO4 solution

Effective membrane area

Feed spacer

Test solution concentration

Test pressure

%

%

GPD

m³/d

GPD

m³/d

ft2

mil

mg/L

psi

MPa

NF30-400HP

30-40

≥97

11000

41.6

10000

37.9

400

37.2

34

NaCl:

500

MgSO4

2000

100

0.69

Test conditions: test liquid temperature 25 ℃, pH value 7.5-8.0, recovery rate 15%; water production range ±15%

Operating conditions

Maximum operating pressure

600 psi (4.14 MPa)

Maximum water inlet temperature

45 

Maximum water intake

17.0 m3/h (8040)、3.6 m3/h   (4040)

Maximum inlet silt density index SDI15

5.0

Residual chlorine tolerance

0.1 mg/L

Inlet water pH range during continuous operation

2-11

Chemical cleaning (30 min) pH range of influent water

1-13

Maximum allowable pressure drop of a single membrane element

15 psi (0.10 MPa)

1. The maximum temperature for continuous operation at pH above 10 is 35°C;

2. Under certain conditions, the presence of residual chlorine and other oxidants can cause premature failure of the membrane. It is recommended that users remove residual chlorine by pretreatment before it contacts the membrane.

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