DAF(dissolved air flotation)

Standard air flotation is a typical representative of dissolved air flotation, with high market retention and stable operation. It is commonly used to remove light and small suspended solids, colloids, oil or grease, and algae from water.

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① White water pulp recycling and water reuse in the papermaking industry.
② Oil water separation in the refining industry.
③ Removal of impurities from tannery wastewater.
④ Removal of heavy metal ions.
⑤ Wastewater biological treatment, biological sludge membrane solid-liquid separation.
⑥ Wastewater upgrading, purification, and phosphorus removal.

Details

The main body is a rectangular steel structure. The main components include a rectangular box, a release device, a dissolved air pump, an air compressor, a dissolved air tank, an air flotation system, and a mud scraping system.

The raw water passes through the dissolved gas system and forms saturated pressure dissolved water with air in the dissolved gas tank. It is then released through a depressurizer in the tank. During the process, a large number of tiny bubbles are generated, which adhere to the suspended solids in the water and float to the surface. After being removed by the skimming system, the water quality is purified.

Specification

Model	Capacity	Power(kW)					Dimension(m)				Nozzle list(DN)
DAF/IDAF	m3/h	Recycle pump	Air compressor	Skimmer	IDAF Fast mixer	IDAF Slow mixer	DAF L/L1	IDAF L/L1	W/W1	H/H1	Inlet	Outlet	Sludge outlet	Vent nozzle
003	~3	0.75	0.55	0.2	0.37	0.25	3.6/2.8	4.1/3.2	2.4/1.2	2.2/1.7	50	50	80	80
005	~5	1.1	0.55	0.2	0.37	0.25	3.8/3.0	4.4/3.6	2.4/1.2	2.2/1.7	80	80	80	80
010	~10	4.0	0.55	0.12	0.37	0.25	4.3/3.3	5.0/4.0	2.9/1.7	2.4/1.9	100	100	100	100
020	~20	4.0	0.75	0.12	0.37	0.25	5.7/4.8	6.2/5.2	3.2/2.2	2.4/1.9	150	100	100	100
030	~30	5.5	0.75	0.12	0.37	0.25	6.5/5.5	7.7/6.7	3.2/2.2	2.4/1.9	150	150	150	100
040	~40	5.5	0.75	0.12	0.75	0.37	6.5/5.5	7.7/6.7	3.6/2.7	2.4/1.9	200	200	150	100
050	~50	7.5	0.75	0.12	0.75	0.37	7.3/6.3	8.8/7.8	3.6/2.7	2.4/1.9	200	200	150	100
080	~80	11	2.2	0.12	1.5	0.37	8.9/7.6	10.6/9.2	4.4/3.4	2.7/2.3	250	200	150	100
100	~100	11	2.2	0.12	1.5	0.37	10.8/9.4	13.2/11.8	4.4/3.4	2.7/2.3	300	250	150	100
120	~120	11	2.2	0.12	1.5	0.37	11.7/10.4	14.2/12.8	4.4/3.4	2.7/2.3	300	250	150	100
150	~150	15	3	0.12	1.5	0.37	13.5/12.0	15.8/14.4	4.5/3.6	2.7/2.3	300	300	150	100

Features & Benefits

Can be skid-mounted, facilitating installation and application.
Paired with an efficient gas dissolution system and a stable and reliable separation structure main body.
A safe skimming system.
Hydraulic load of 5-8m³/(m²·h).
High resistance to suspended solids concentration, suitable for suspended solids concentration<1500mg/L.