The vortex air flotation system is a wastewater treatment technology that removes grease, colloids, and suspended solids in sewage (especially petrochemical oily sewage).

The wastewater coagulates with PAC and PAM and then flows to the aeration zone. The hollow impeller aerator configured here rotates at high speed to form a vacuum zone in the water so that the air is pumped underwater and crushed into microbubbles under shear force. The solid pollutants in the sewage are combined with microbubbles. The buoyancy generated by the imbalance between the air-water combination and the density of water brings the solid pollutants to the water surface, and the scum on the water surface is scraped into the collection tank through a slag scraper. The purified sewage is discharged through the overflow weir.

Vortex air flotation machine working process（Video Description）

Basic structure of vortex concave air flotation system

How vortex air flotation works ？

The working principle of vortex air flotation is that the sewage, after dosing and coagulation, first enters the vortex equipped with The aeration area of the aerator, which is equipped with a patented unique aerator, uses hollow leaves at the bottom to The rapid rotation of the wheel creates a vacuum zone in the water, and the air above the water passes through The hollow pipe is pumped underwater, and the three shear forces generated by the rapid rotation of the impeller at the bottom The air is crushed into microbubbles. The microbubbles organically combine with the solid pollutants in the sewage. Together, they rise to the liquid surface. After reaching the liquid surface, solid contaminants rely on these microbubbles The support floats on the water, and the scum is scraped into the scum collection tank by a scum scraper.

The vortex air flotation machine mainly comprises a box, an aerator, a mud scraping system, etc., and does not require pressure-dissolved air, air compressors, circulation pumps, or other equipment.

Compared with the pressurized dissolved air flotation machine, the vortex concave air flotation machine has the following advantages:

(1) Low investment, low energy consumption, automatic slag discharge without noise, and convenient operation and management.

(2) Compared with traditional domestic pressurized dissolved air flotation systems, equipment such as dissolved air tanks, air compressors, high-pressure water pumps, and underground pipelines are omitted, and the energy consumption is 1/3~1/5 of conventional air flotation.

(3) This system can also remove grease, colloids, and fiber suspensions in sewage, reducing the sewage load such as SS and TP, and can significantly improve the color of the water quality.

Product Advantages

shallow air flotation Advantages

Efficient solid-liquidseparation	The operation is simple	Automatic slag discharge unattended	Realize comprehensive control

Dissolved air flotation technology parameter table

Model	Capacity(m3/h)	Nozzle List(DN)				Dimension(mm)
		Inlet	Outlet	Sludge	Vent	L	L1	L2	W	W1	H
RDAF-002	2	DN50	DN50	DN100	DN50	31800	2200	400	700	700	1600
RDAF-003	3	DN50	DN50	DN100	DN50	4300	3300	500	800	700	1900
RDAF-005	5	DN80	DN80	DN100	DN50	4500	3500	500	1000	700	1960
RDAF-010	10	DN100	DN100	DN100	DN80	5600	4500	500	1200	700	1960
RDAF-015	15	DN125	DN100	DN150	DN80	6100	5000	500	1500	700	1960
RDAF-020	20	DN150	DN150	DN150	DN80	6100	5000	600	1800	700	1960
RDAF-030	30	DN150	DN150	DN150	DN80	7100	6000	700	2000	700	2050
RDAF-040	40	DN200	DN150	DN150	DN80	8100	7000	900	2200	700	2050
RDAF-050	50	DN250	DN150	DN150	DN80	8100	7000	1000	2700	700	2050
RDAF-060	60	DN250	DN150	DN150	DN80	9100	8000	1000	2800	700	2050
RDAF-070	70	DN250	DN150	DN150	DN80	10100	9000	1000	3000	700	2050
RDAF-080	80	DN250	DN150	DN150	DN100	11100	10000	1200	3200	700	2050
RDAF-090	90	DN250	DN150	DN150	DN100	11600	10500	1200	3200	700	2050
RDAF-100	100	DN300	DN150	DN150	DN100	11600	10500	1200	3600	700	2050

Model	Capacity(m3/h)	Weight(Kg)	Operating Weight(Kg)	Power
				Reflux Pump	Air Compressor(kw)	Skimmer(kw)	Agitator(kw)
RDAF-002	2	1300	4000	0.55	0.55	0.1	0.1
RDAF-003	3	1500	5000	0.75	0.55	0.1	0.1
RDAF-005	5	1600	7000	1.1	0.55	0.1	0.2
RDAF-010	10	2000	12000	1.5	0.75	0.2	0.2
RDAF-015	15	2200	18000	2.2	0.75	0.2	0.4
RDAF-020	20	3000	22000	2.2	0.75	0.2	0.4
RDAF-030	30	3800	32000	3	1.5	0.2	0.4
RDAF-040	40	5000	45000	5.5	1.5	0.2	0.4
RDAF-050	50	5500	55000	7.5	1.5	0.4	0.4
RDAF-060	60	6000	66000	7.5	1.5	0.4	0.4
RDAF-070	70	6800	85000	11	1.5	0.4	0.75
RDAF-080	80	7500	100000	11	1.5	0.4	0.75
RDAF-090	90	8300	105000	11	1.5	0.4	0.75
RDAF-100	100	9000	11000	15	2.2	0.4	0.75

Dissolved air flotation outline drawing

1. Height adjustable overflow weir plate	2. Scraper chain	3. Flotation zone	4. Return area
5. water intake	6. Return pipe	7. Aeration zone	8. Drainage area
9. Overflow weir	10. Outlet

DAF Accessories list

Parts Name	Accessories Pictures	Parts Name	Accessories Pictures
Chain		Float level switch
Releaser		Pressure Gauge
Rubber Scraper		Chain wheel

Product Details

Dissolved air flotation product details

Effectiveness of equipment

Dissolved air flotation Effectiveness of equipment

Cooperation Case

Suma Park North Wastewater Treatment Plant Project

Jiangning District Science Park River Management Project

Product application cases are continuously updated...

Name4