Airlifts

Airlift (air-gas lift) is used to remove raw sludge and excess sludge from primary and secondary sedimentation tanks, as well as circulation of recycled activated sludge in aerotanks at medium and small biological treatment facilities. The design of the airlift elements and its type is selected individually subject to the features of each facility and its calculated performance.

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Airlifts are available in two versions - EVP and EUP.

EVP (vertical polyethylene airlift) – a series of airlifts with the coinciding axes of the lifting and suction pipes (Fig. 1).

EUP (angled polyethylene airlift) – a series of airlifts with the axes of the lifting and suction pipes inclined at a certain angle (Fig. 2).

Эрлифт Экополимер

Fig.1 Vertical airlift Fig. 2 Angled airlift

Advantages of Ecopolymer airlifts:

  • ease of installation;
  • compact design;
  • cost of airlifts (several times cheaper than pumps);
  • reliable operation and ease of flow control;
  • Long service life (due to the lack of moving parts, airlifts can work for a long time without maintenance and repair);
  • corrosion-resistant materials;
  • avoidance of foreign objects falling into the airlift due to the protective polymer mesh, which can be included in the delivery package.
  • the presence of a quenching plug reliably protects the airlift from the so-called "gurgling sludge", which release from the air separator is observed in practice.

No.

Airlift type

Capacity, m³/h

min.

max.

1

EVP 40/140 (125) - X M

EUP 40/140 (125) - X M

2.4

7.2

2

EVP 50/140 (160) - X M

EUP 50/140 (160) - X M

4

11

3

EVP 63/140 (160) - X М

EUP 63/140 (160) - X M

6.5

19

4

EVP 75/180 - Х М(F)

EUP 75/180 - Х М(F)

9.5

29

5

EVP 90/180 - Х М(F)

EUP 90/180 - Х М(F)

14

43

6

EVP 110/225 (250) - X M(F)

EUP 110/225 (250) - X M(F)

18

67

7

EVP 125/225 (250) - X M(F)

EUP 125/225 (250) - X M(F)

25

90

8

EVP 140/250 (315) - X M(F)

EUP 140/250 (315) - X M(F)

32

115

9

EVP 160/315 - Х М(F)

EUP 160/315 - Х М(F)

43

154

10

EVP 180/315 - Х М(F)

EUP 180/315 - Х М(F)

65

200

Meaning of the EUP 180/315 - Х М(F) airlift name

Type of product

Design

Material

Main pipe Ø / air distributor and air separator casing Ø

Airlift length

Type of airlift

connection

Airlift

Vertical

Angled

Polyethylene

 

mm/mm

m

flange

coupling

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