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Products and services

Membrane separation unit system

Nanofiltration membrane reactor

1.Product description
Nanofiltration is a membrane separation technology which is driven by pressure difference and the particle size of the trapped water between ultrafiltration and reverse osmosis is nanometer particles. The pore size and surface characteristics of nanofiltration membrane determine its unique properties, and it has different removal effects for ions with different charges and different valence Numbers. The separation mechanism of nanofiltration membrane is the coexistence of screening and dissolution and diffusion, and it also has charge exclusion effect. It can effectively remove divalent and polyvalent ions and all kinds of substances with molecular weight greater than 200Da, and can partially remove monovalent ions and substances with molecular weight less than 200Da.

2.Product performance

  1. ●The water softening can be realized through the selection of different valence ions in nanofiltration membrane;
  2. ●Nanofiltration membrane in drinking water treatment can remove organic matter in water, can be used for decoloring, removing natural organic matter and synthetic organic matter, to ensure the biological stability of drinking water;
  3. ●Nanofiltration membrane can remove disinfection by-products, so that drinking water quality to meet higher standards of safe and high-quality drinking water quality, the trace volatile organic compounds in drinking water also has a higher removal rate;
  4. ●Nanofiltration can be used in the production of direct drinking water by retaining bivalent ions and other particles through only water molecules and some univalent ions (such as sodium, potassium, chloride ions).

3.Membrane reactor design and appearance
General requirements for components and piping layout: functional, safe, easy to operate and maintain, economical, simple and smooth, firm and beautiful. In addition, packaging, lifting, transportation and site fixation should also be considered.

4.Inflow water requirements

No.

Item

Unit

specifications

1

turbidity

NTU

<1

2

SDI

 

<5

3

Fe

μg/L

<50

4

Mn

μg/L

<50

5

Oil content

mg/L

<0.1

6

temperature

5-45

7

pH

 

3-11

8

Residual chlorine

mg/L

<0.1

5.Features of membrane reactor design and fabrication

  1. ●Adopt automatic control system, high automation degree of membrane reactor operation, easy operation and maintenance;
  2. ●Reasonable design and layout, high integration, small floor space;
  3. ●Adopt domestic and foreign famous brand products, long service life of membrane reactor;
  4. ●Standardize membrane reactor design, provide corresponding products according to customer requirements, short processing cycle, save manufacturing costs

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