Air Flotation

Your Leading Air Flotation Supplier

Wuxi Wanchuan Environmental Equipment Technology Co., Ltd is a professional environmental company dedicating in research, development, production and sales of environmental equipments. The company has many professional technical personnels, modern plant, excellent mechanical and operating equipments, advanced testing methods, which are able to ensure the quality of worthy of the name. If you are interested, please contact us: Email: ds5898@163.com

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Professional Team

Company has accumulated many professional integrity and pragmatic innovation teams, such as, many technical staff experiencing in practice and many manufacturers with fine craftsmanship, as well as the model of scientific management and cooperation, and these provide the quality of products with powerful guarantee.

Professional Expertise

We are committed to developing and providing equipment that helps protect the environment. Our products are designed to reduce pollution, conserve resources, and contribute to a sustainable future.

Professional Service

From research and development to after - sales support, we offer a full range of services. We assist customers in choosing the most suitable equipment, provide installation and maintenance services, and are always ready to address any concerns.

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Introduction to Air Flotation

One of the oldest ways for removing sediments, oil & grease, and fibrous debris from wastewater is air flotation. These techniques can remove 99 percent of suspended particles and 99 percent of oil and grease. Air flotation is essentially the creation of small air bubbles that improve the natural tendency of some materials to float by transporting wastewater impurities to the tank's surface for mechanical skimming removal.

Specifications of Air Flotation

Modle	Capacity	Dissolved air volume	Power				Dimension			DN (Nozzle list)
	Capacity	Dissolved air volume	KW				Dimension			DN (Nozzle list)
	m³/h	m³/h	Reflux pump	Aerator	Skimmer	Blender	Pool diameter	D/D1	H/H1	Iniet	Outlet	Sludge outlet
	m³/h	m³/h	Reflux pump	Aerator	Skimmer	Blender	(m)	D/D1	H/H1	(A)	(B)	(C)
WQF-2	15～20	～7	2.2	1.5	0.75	1.5	Φ2	3.4/2.0	4.2/2.5	100	100	100
WQF-3	30～40	～13	5.5	1.5	0.75	1.5	Φ3	4.8/3.0	4.2/2.5	150	150	100
WQF-4	50～80	～15	7.5	1.5	0.75	1.5	Φ4	5.9/4.0	4.2/2.5	200	200	100
WQF-5	80～100	～30	11	2.2	1.1	2.2	Φ5	6.9/5.0	4.2/2.5	300	300	125
WQF-6	100～150	～40	11	2.2	1.1	2.2	Φ6	7.9/6.0	4.2/2.5	300	300	125
WQF-7	150～180	～60	15	3	1.1	2.2	Φ7	8.9/7.0	4.2/2.5	350	350	150
WQF-8	200～250	～70	22	4	1.5	3	Φ8	9.9/8.0	4.7/3.0	400	400	150
WQF-9	250～300	～90	30	4	1.5	3	Φ9	10.9/9.0	4.7/3.0	400	400	150
WQF-10	300～400	～110	30	4	1.5	3	Φ10	11.9/10.0	4.7/3.0	450	450	150
WQF-11	400～500	～150	45	5.5	2.2	3	Φ11	12.9/11.0	4.7/3.0	450	450	200
WQF-12	500～625	～200	45	5.5	2.2	4	Φ12	13.9/12.0	5.7/4.0	450	450	200
WQF-13	625～750	～240	55	5.5	2.2	4	Φ13	14.9/13.0	5.7/4.0	500	500	200
WQF-14	800～950	～280	55	5.5	2.2	4	Φ14	15.9/14.0	5.7/4.0	500	500	200
WQF-15	1000～1150	～300	55	5.5	2.2	4	Φ15	16.9/15.0	5.7/4.0	600	600	200
WQF-16	1250～1400	～300	55	5.5	2.2	4	Φ16	17.9/16.0	5.7/4.0	700	700	200
WQF-18	1500～1800	～480	75	7.5	3	4	Φ18	19.9/18.0	5.7/4.0	700	700	250

Functions of Air Flotation

High removal efficiency

Air flotation can remove up to 90% of suspended solids and other contaminants from wastewater.

Flexibility

Air flotation can be used in various applications and can treat a wide range of wastewater types.

Small footprint

Air flotation systems require less space than other wastewater treatment processes.

Application Scope of Air Flotation

Integrated High Speed Dissolved Air Flotation

Integrated Dephosphorization High Speed Air Flotation

Paper Mills:
Air flotation allows to recover most of the paper fibers that constitute the raw material and that would otherwise be lost with the cloth washing water. Secondly, air flotation units are used for the purification treatment of wastewater, in particular for the removal of suspended solids and the COD linked to them.

Confectionery Industries
One of the main applications of the air flotation system is the pre-treatment of waste water in the confectionery industry. The different production lines are subjected to frequent washing both for hygiene reasons and when products with different characteristics are produced. The process water of the confectionery industry is characterized by high levels of suspended solids, COD and fats.

Cured Meat Factories
The water coming out of the sausage factories contains high levels of fats and suspended solids, deriving from the meat processing and stuffing process. The presence of these substances can create problems for the biological wastewater treatment plant. As a pre-treatment, air flotation is highly efficient in removing fat and suspended solids thanks to its innovative air dissolution system.

Primary And Secondary Clarification For Biological Plants
The dissolved air flotation system is widely used as a clarification phase in biological plants of all potentials. The sludge extracted from the flotation unit has a density approximately double that of the sludge extracted from a traditional sedimentation system. This allows for a reduction in the costs of sludge disposal or of creating any sludge treatment line.

Dairy Industries
Air flotation is an application very similar to that of salami factories. The dissolved air quickly brings solids and fats to the surface, without problems of bad odors and with extremely high removal efficiency. This allows the polluting load to be reduced and therefore the size of the entire plant. Flotation systems are often used even on existing plants that need to be upgraded.

Oil & Gas Industries
Air flotation is an effective solution for oil removal. If the company already has its own biological purification plant, the system allows for an increase in efficiency by removing upstream all substances that could inhibit the correct functioning of the biological process.

Textile Industries
Air flotation is an effective system for treating water upstream of any biological and/or chemical-physical process. They allow the removal of approximately 80% of the fats and solids contained in the waters, and also carry out a partial reduction of the surfactants linked to the latter. The micro air bubbles that are generated in the saturator and that are released in the flotation tank are so fine that they do not cause the formation of foam despite the high levels of surfactants.

Other Services of Air Flotation Suppliers

We configure high-quality accessories to extend service life.

We have our own factory and design team, which means you will get the factory price directly.

We provide comprehensive after-sales service and technical support.

With our air flotation, you will enjoy an efficient, safe and environmentally friendly handling experience, as well as professional and attentive service.

Certificate

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FAQ

Q: Can air flotation enhance pollutant removal?

A: Air flotation outperforms sedimentation and membrane filtration in various scenarios. It produces superior water quality compared to sedimentation due to better removal of fine particles and colloids at higher flow rates. The concentrated sludge from air flotation improves sludge handling and disposal, offering operational efficiency.

Q: What is the use of air flotation method?

A: Air flotation has been used by mineral and chemical engineers for the separation and concentration of aqueous suspensions or solutions of a variety of minerals, coal, precipitates, inorganic waste constituents, effluents, and even microorganisms and proteins.

Q: How does air flotation work in mining?

A: One of the most widely used methods of recovering valuable minerals in the mining industry is using froth flotation tanks. Inside these tanks, the ground ore is mixed with water to form a slurry. Hydrophobic materials then separate from hydrophilic materials through the use of chemical additives.

Q: What is the pressure for air flotation?

A: The pressure for air flotation can vary depending on the specific system and application, but it typically ranges from 20 to 60 psi.

Q: What is the bubble size in air flotation units?

A: The bubble size range that is generated under a pressure of 4–6 atmospheres is generally reported to be 10–100 µm, with the average diameter of approximately 40 µm. The size of the air bubbles produced in DAF is most strongly affected by the pressure difference across the nozzle system.

Q: How long does a air flotation unit last?

A: Air flotation unit can last for several years with proper maintenance and care. Regular cleaning and inspection can extend the life of such systems.

Q: Is air flotation suitable for treating sewage?

A: Air flotation units can be used for treating sewage, but it may not be the most suitable method for large-scale municipal wastewater treatment. However, it can be used as a pre-treatment step to remove solids and other contaminants before further treatment.

Q: Is air flotation used to remove BOD from highly polluted waste water?

A: Yes,air flotation is often used to remove BOD (biochemical oxygen demand) from highly polluted wastewater, as it is effective at removing organic matter and other pollutants.

We're professional air flotation manufacturers and suppliers in China, specialized in providing the best OEM service. We warmly welcome you to buy custom made air flotation at competitive price from our factory.

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