Dissolved Air Flotation

1. Product Description: 

Dissolved air flotation system for wastewater treatment is mainly for solid-liquid or liquid-liquid separation. Large sum of micro bubbles produced by dissolving and releasing system adhere to solid or liquid particles with same density as waste water to make the whole float to the surface thus achieve the aim of solid-liquid or liquid-liquid separation.

2. Application:

As a waste water process,  DAF is widely used in sewage treatment and water purification enginnering. This equipment is suitable for:

a. Increase effluent recycling and fresh water reusing in paper and pulp.
b. Removal of heavy metal ions.
c. Separation of oil refinery effluent.
d. Removal of tannery wasteeater.
e. Removal of chromaticity and impurities in printing and dyeing wastewater.
f. Solid-liquud separation of sewage and membrane after all kinds of bio-treatment.
g. Sludge concentration ( capacity: 20%-30%, except the dedicated device which can be designed according to the requirements).

3. Features:

  1. 1. Large capacity, high efficiency and small occupying space.
  2. Compact structure, easy operation and maintenance.
  3. Silt expansion elimination
  4. Aerate to the water while air floating, it has an obvious effect to the elimination of active agent and foul smell in water. Meanwhile, the increased dissolved oxygen provides a favorable condition to the follow-up process.
  5. It can achieve the best effect in adopting this method when disposing the water with lower temperature, lower turbidity and more algae. 

4. Product Presentation:

3. Main Technical Parameters

Model
Capacity
( m3/h)
Dissolved Air Water Volume
(m3/h)
Main Power
( kw)
Aerated Motor (kw)
Skimmer (kw)
Total Power
(kw)
PQF-3
2-3
0.5-1
0.75
0.55
0.37
1.67
PQF-5
3-5
1-2
1.1
0.55
0.37
2.02
PQF-10
5-10
2-3
1.5
0.75
0.37
2.62
PQF-15
10-15
3-5
2.2
0.75
0.37
3.32
PQF-20
15-20
5-7
2.2
0.75
0.37
3.32
PQF-30
20-30
6-10
3
0.75
0.37
4.12
PQF-40
30-40
10-15
5.5
0.75
0.37
6.62
PQF-50
40-50
15-18
7.5
1.5
0.37
9.37
PQF-60
50-60
18-20
7.5
1.5
0.37
9.37
PQF-70
60-70
20-25
11
1.5
0.55
12.87
PQF-80
70-80
25-30
11
2.2
0.55
12.87
PQF-100
80-100
30-35
15
2.2
0.55
17.75
PQF-120
100-120
35-50
15
2.2
0.55
17.75
PQF-150
120-150
50-60
15
2.2
0.55
17.75
PQF-200
180-200
60-70
22
4
1.1
27.10

Note: The technical parameters above is for reference only, we reserve the right to its modification without prior notice. We also provide concrete tank body design and full set interior accessories according to users requirements and quality of water.

RQG Type Dissolved Air System

1. Application:

Provide high efficient and stable dissolved air water for dissolved air floatation system.

2. Features

a. Concise outline structure, small volume, lower power consumption, high efficiency, stable effect;
b. Overcome the dificulities that all kinds of conventional sedimentation clarifiers have, truly achieve the continuous zero blocking operation;
c. Safe and reliable electric control, high level of automation, convenient to operate;

3. Structure & Its Working Process

 This syetem makes use of the principle of jet eductor. And when the working pressure is about 0.4 Mpa, the system dissolves air in the water through high speed flow at the shortest time.

This device condidts of dissolned air vessel, reflus pump, air compressor, frame and etc. Elcetric cabinet is set up separately.

4. Technical Parameter

Model
Dissolved Air Water Volume (m3/h)
Main Motor ( kw)
Aerated Motor ( kw)
Gross Weight (kg)
Working Weight (kg)
RQG5
1.5-2.5
1.1
0.37
680
720
RQG10
3-5
1.5
0.37
700
750
RQG20
7-10
3
0.75
720
800
RQG30
10-12
5.5
0.75
750
840
RQG40
12-15
7.5
0.75
800
900
RQG50
15-20
7.5
0.75
900
1000
RQG60
20
7.5
1.5
900
1000
RQG80
30
15
1.5
1000
1500
RQG100
35
15
1.5
1300
1900
RQG150
50
15
1.5
1500
2400
RQG200
65-70
22
3
1900
3100
RQG250
80-90
22
3
2500
4000
RQG300
90-110
30
3
3000
4900
RQG500
160-170
45
5.5
4200
6000
RQG800
260-270
75
11
6500
11000

5.  Installation Dimension:

 
Model
Dimension
L
B
H
H1
H2
D1
D2
RQG5
1800
600
1500
600
400
DN32
DN32
RQG10
1800
600
1500
600
400
DN40
DN40
RQG20
2000
600
1500
600
400
DN40
DN40
RQG30
2000
600
1500
600
400
DN50
DN50
RQG40
2000
600
1500
600
400
DN65
DN65
RQG50
2500
800
1800
800
400
DN65
DN80
RQG60
2500
800
1800
800
400
DN65
DN100
RQG80
2500
800
1800
800
400
DN80
DN125
RQG100
2600
800
1800
800
400
DN80
DN125
RQG150
2600
1200
2100
1000
500
DN100
DN125
RQG200
3000
1400
2700
1200
640
DN125
DN200
RQG250
3200
1600
2700
1200
640
DN150
DN200
RQG300
3500
1600
2800
1200
540
DN200
DN200
RQG500
3800
1800
3000
1400
540
DN200
DN200
RQG800
4000
1800
3200
1400
675
DN250
DN250