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Multi-media filter
Multi-media filter

Multi-media filter

Multi-media filter is the use of one or several filter media, under a certain pressure to the higher turbidity of water through a certain thickness of granular or non-granular material, so as to effectively remove the suspended impurities so that the water clarification process.

Category： Other non-standard equipment

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Product Details

Product Introduction

Multi-media filter is the use of one or several filter media, under a certain pressure to the higher turbidity of water through a certain thickness of granular or non-granular material, so as to effectively remove the suspended impurities so that the water clarification process.

Commonly used filter materials are quartz sand, anthracite, manganese sand, etc., mainly used for water treatment in addition to turbidity, softened water, pure water pretreatment, etc., the effluent turbidity can reach 3 degrees below.

 

Product Features

Multi-media filters are widely used in water treatment processes and can be used alone, but most of them are pre-filtration for advanced water treatment (exchange resin, electrodialysis, reverse osmosis).

2. Multi-media filter is a commonly used pretreatment device for deep purification of water quality, and different filter materials can be added according to process requirements.

3. Multi-media filter material can be made of glass fiber reinforced plastic, A3 steel anti-corrosion or rubber lining, all stainless steel. There are two modes of operation: automatic and manual. Automatic control adopts automatic controller imported from the United States and gas and hydraulic valve control. It is easy to operate and easy to maintain. It is widely used in the pretreatment device of water treatment process in all walks of life.

4. The filter material of multi-media filter (including double filter material filter) has sufficient chemical stability, and the relative density and particle size of each medium should have certain differences. The relative density of anthracite used in double-layer filter material filter composed of anthracite and quartz sand is 1.4-1.6, the particle size is 0.8-1.8mm, the relative density of quartz sand is 2.6-2.65, and the particle size is 0.5-1.2mm; in addition to the above two kinds of filter materials, the 3-layer filter can also use heavy ores such as manganese sand and magnetite, with a relative density of 4.7-5.0 and a particle size of 0.5-4mm.

 

Equipment performance parameter table

Model (diameter φ)

2

2.6

3

3.5

4

4.5

5

Water filtration area (m²)

3.14

5.31

7.07

9.62

12.56

15.90

19.63

Maximum filtration rate (m/h)

40

40

40

40

40

40

40

Maximum water filtration capacity (m³/h)

125.6

212.264

282.6

384.65

502.4

635.85

785

Maximum water inlet pressure

≤ 0.4MPa

Inlet water quality

suspended matter

≤ 80mg/L

Oil

≤ 10mg/L ~ 20mg/L

Outlet water quality

suspended matter

≤ 10mg/L

Oil

≤ 5mg/L ~ 15mg/L

Average pressure loss in the filter

-0.05 MPa

Parameters during filter cleaning

backwash water intensity

25m ³/(m² · h)

Backwash water pressure

0.15MPa

backwashing air intensity

25m ³/(m² · h)

Backwashing air pressure

0.07MPa

Keywords： Multi-media filter