The working mechanism of water purification quartz sand filter

Action principle, quartz sand filter water purification device

quartz sand filter used for in addition to the turbidity of raw water treatment and other water purification treatment, its action principle: the raw water into a match at all levels of quartz sand, quartz sand filter, using quartz sand section carrying capacity, can effectively remove the larger suspended matter and colloid particles in the water, the water turbidity of less than 1 mg/l, in order to ensure the normal operation of the subsequent processing.

raw water in the pipe join flocculants, flocculant ion hydrolysis and polymerization process in the water, the water colloid particles of hydrolysis and gathering all kinds of products with strong adsorption, reduce particle surface charge and the thickness of the diffusion at the same time, thus between particles repel each other, can be cut down close to each other and condensation, hydrolysis to produce polymer by two glues after adsorption, produce bridge connection between the particles, gradually form a larger flocculation body, through the quartz sand filter for sand filter material left.

quartz sand filter adsorption is a kind of physical adsorption, according to the loading way of filter material is generally can be divided into loose area ( Coarse sand) And close area ( Fine sand) , suspended material in the loose area, held by flow contact to contact cohesion function, so the region intercept larger particles suspended matter and in the close area mainly inertia collision and adsorption between the suspended particles, so the area is intercept smaller particles suspended material.

when quartz sand filter for intercept excessive mechanical impurity and affect their normal work, usable backwash methods for cleaning. Using reverse water, ventilation with compressed air at the same time, the gas scrubbing water mixing, loose sand filter in the filter layer, can make the adhesion on the surface of quartz sand is intercept stripping and recoil water flow away, is conducive to eliminate filter layer of sediment, suspended solids, etc. , and prevent the filter material harden and make its full recovery section carrying capacity, so as to achieve the purpose of cleaning. Backwashing to import and export of differential pressure parameter is set to control the backwash cycle, experience that generally for a day, must depend on the raw water turbidity.

2, quartz sand filter backwashing regeneration

when quartz sand filter run to import and export pressure difference of 0. 09 mpa, must carry out the washing, quartz sand filter operating valve group, the filter of departure, is washed, backwashing and downtime is a manual control operation.

3, quartz sand filter type parameter list models

Sc03 -

Sc03 - 300

Sc03 - 400

Sc03 - 500

Sc03 - 600

Sc03 - 700 800

specifications

Φ 300 x 1600

Φ 400 x 1600

Φ 500 x 1650

Φ 600 x 1700

Φ 700 x 1600

Φ 800 x 1600

flow

0. 5 ~ 1 m3 / h

1 ~ 1。 5 m3 / h

1。 5 ~ 2 m3 / h

2 ~ 4 m3 / h

4 ~ 6 m3 / h

6 ~ 8 m3 / h

型号

Sc03 -

Sc03 - 900

Sc03 - 1000

Sc03 - 1200

Sc03 - 1400

Sc03 - 1500 1600

规格

Φ900×2400

Φ1000×2500

Φ1200×2700

Φ1400×2800

Φ1500×2900

Φ1600×2900

流量

7 ~ 9 m3 / h

8 ~ 11 m3 / h

10 ~ 14 m3 / h

12 ~ 18 m3 / h

14 ~ 22 m3 / h

18 ~ 25 m3 / h

型号

Sc03 -

Sc03 - 1800

Sc03 - 2000

Sc03 - 2200

Sc03 - 2400

Sc03 - 2500 2600

规格

Φ1800×3200

Φ2000×3300

Φ2200×3500

Φ2400×3500

Φ2500×3600

Φ2600×3700

流量

24 ~ 32 m3 / h

28 ~ 40 m3 / h

35 ~ 45 m3 / h

40 ~ 55 m3 / h

45 ~ 60 m3 / h

55 ~ 65 m3 / h

型号

Sc03 -

Sc03 - 2700

Sc03 - 2800

Sc03 - 3000

Sc03 - 3200

Sc03 - 3400 3500

规格

Φ2700×3750

Φ2800×3800

Φ3000×3850

Φ3200×3950

Φ3400×4100

Φ3500×4300

流量

60 ~ 72 m3 / h

68 ~ 85 m3 / h

75 ~ 95 m3 / h

90 ~ 110 m3 / h

100 ~ 125 m3 / h

110 ~ 140 m3 / h