Description
What Is DAF Dissolved air flotation
Dagyee DAF System proactively promotes solid/liquid separation providing better contaminant removal, more efficient chem usage and drier sludge – using a much smaller footprint than conventional DAFs.
The DAF System is often referred to as a 'DAF on Steroids'. However, as opposed to DAF's that require significant retention time and rely on the old-school particle collision process to float solids, the DAF System injects air into 100% of the waste stream while pushing water through a series of hydrocyclones under controlled pressure, removing up to 100% of TSS & FOG.
Chemicals are uncoiled in the Heads availing more than 2x the charge sites resulting in a higher rate of contaminant removal. Since separation occurs in the Heads, large tight flocs float and are skimmed off the tank into a sludge hopper. Drier sludge ensues as the air dissipates and chemicals recoil, to naturally dewater the flocs. Costs are reduced due to lower chemical, sludge handling and building costs.
As a waste water process, DAGYEE DAF Dissolved air flotation is widely used in sewage treatment and water purification engineering. DAF Dissolved air flotation is suitable for :
- Increase effluent recycling and fresh water reusing in paper and pulp
- Removal of heavy metal ions
- Separation of oil refinery effluent
- Removal of tannery wastewater
- Removal of chromaticity and impurities in printing and dyeing wastewater
- Solid-liquid separation of sewage and membrane after all kinds of bio-treatment
- Sludge concentration (capacity: 20%~ 30%, except the dedicated device which can be designed according to the requirements)
Why Choose DAF Dissolved Air Flotation
- Total suspended solids (TSS) reduced by up to 97
- Chemical oxygen demand (COD) removal rate of up to 60-80%
- Integrated sludge hopper for easy removal of solid deposits .
- The DAF area provides a static space for the formation of the float.
- Heavy-duty, fully protected, counter-current surface separator that removes surface float
DAF Dissolved Air Flotation Process
DAGYEE DAF Dissolved Air Flotation Advantage
-
The most effective white water / recycling design. Large effective settling area
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With optional chemical processing stage improved separation efficiency
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Compact clarifier and reaction cell design surface loading up to 15m3/m2hr
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Rugged design for easy understanding, operation and maintenance
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Carbon steel and stainless steel body material design, the lowest cost of ownership
|
DAF |
Qmax. |
PhysicalDimensions(m) |
Weight |
Operating |
Power(kw) |
||||
|
L/L1 |
W/W1 |
H/H1 |
Refluxpump |
Air compressor |
Skimmer |
||||
|
DAF-002 |
2 |
3.4/2.5 |
2.4/1.16 |
2.2/1.7 |
1300 |
4000 |
0.75 |
0.55 |
0.2 |
|
DAF-003 |
3 |
3.7/2.8 |
2.4/1.16 |
2.2/1.7 |
1500 |
5000 |
0.75 |
0.55 |
0.2 |
|
DAF-005 |
5 |
4/3 |
2.4/1.16 |
2.2/1.7 |
1600 |
7000 |
1.1 |
0.55 |
0.2 |
|
DAF-010 |
10 |
4.65/3.8 |
2.7/1.36 |
2.4/1.9 |
2000 |
12000 |
1.5 |
0.55 |
0.2 |
|
DAF-015 |
15 |
5.6/4.5 |
2.9/1.66 |
2.5/2 |
2200 |
18000 |
2.2 |
0.75 |
0.2 |
|
DAF-020 |
20 |
5.9/4.8 |
3.2/1.96 |
2.5/2 |
3000 |
22000 |
3 |
0.75 |
0.2 |
|
DAF-030 |
30 |
6.8/5.5 |
3.2/2.16 |
2.7/2.2 |
3800 |
32000 |
3 |
0.75 |
0.4 |
|
DAF-040 |
40 |
8/6.7 |
3.6/2.6 |
2.7/2.2 |
5000 |
45000 |
5.5 |
0.75 |
0.4 |
|
DAF-050 |
50 |
8.4/7 |
3.6/2.6 |
2.7/2.2 |
5500 |
55000 |
7.5 |
0.75 |
0.4 |
|
DAF-060 |
60 |
9.9/8.4 |
3.8/2.8 |
2.9/2.4 |
6000 |
66000 |
7.5 |
1.5 |
0.4 |
|
DAF-070 |
70 |
10.4/9 |
3.8/2.8 |
2.9/2.4 |
6500 |
75000 |
11 |
1.5 |
0.4 |
|
DAF-080 |
80 |
10.8/9.4 |
4/3 |
2.9/2.4 |
7500 |
100000 |
11 |
1.5 |
0.4 |
|
DAF-100 |
100 |
12.1/10.6 |
4.2/3.2 |
2.9/2.4 |
9000 |
110000 |
15 |
1.5 |
0.4 |
|
DAF-120 |
120 |
12.5/11.4 |
4.4/3.4 |
2.9/2.4 |
10000 |
130000 |
15 |
1.5 |
0.4 |
DAF Dissolved Air Flotation Application
| Slaughterhouses |
| Meat processing and pack- ing |
| Fish processing Dairies |
| Convenience food production |
| Margarine production Oil and fat refineries Canneries |
| Industrial kitchens and can- teens |
| Fast food providers Soap works Cosmetics industry Textile industry Chemical industry |
| Petrochemical industry Iron and steel industry Metal processing Galvanizing, electroplating Land remediation |
