Working process
The air flotation machine is a water treatment equipment for the separation of solid and liquid by the solution air system producing a large number of micro bubbles in the water, so that the air is attached to the suspended particles in the form of highly dispersed micro bubbles, resulting in a state of density less than water. The air flotation device can be used for some impurities contained in the water body whose specific gravity is close to that of water and which are difficult to sink or float by their own weight. Bubbles are introduced into the water to adhere to the floc particles, thus greatly reducing the overall density of floc particles, and by using the rising speed of bubbles, forcing it to float, so as to achieve rapid solid-liquid separation.
Below is the structure of dissolved air flotation (DAF) system- Flotation tank :
Working Process
An air flotation unit include these working process ：
1. The sewage flows into the air flotation tank, and at the same time, the bottom of the pool is added to coagulate the solid particles and suspended substances in the sewage.
2. Start the air pump to inject appropriate amount of compressed air into the water to form tiny bubbles wrapped with pollutants.
3. Due to the buoyancy of the tiny bubbles, the pollutants are quickly brought to the surface of the water, forming a sludge layer.
4. Remove the sludge layer, place the water body in a stable state, repeat the above process, so that the suspended substances in the sewage can be effectively removed.
Models and parameters
Except the below main models,Toption Machinery can customize the air flotation machine for clients ,
| Parameters of Air Flotation Machine | ||
| Model | Capacity（mt/h） | Size（L*W*H m） |
| TOP-QF2 | 2 | 3*1.7*1.8 |
| TOP-QF5 | 5 | 3.5*1.7*2.3 |
| TOP-QF10 | 10 | 4.8*1.8*2.3 |
| TOP-QF15 | 15 | 6*2.5*2.3 |
| TOP-QF20 | 20 | 6.8*2.5*2.5 |
| TOP-QF30 | 30 | 7.2*2.5*2.5 |
| TOP-QF50 | 50 | 8.5*2.7*2.5 |
Product Advantages of air flotation machine
1. Efficient treatment capacity: Bubble flotation device can quickly remove floating solids and suspended matter in sewage, and has a good removal effect on oil pollution, sludge and so on.
2. Small floor area: The suspended solids removal equipment can be customized according to the needs, so it can be designed according to the actual site size, greatly reducing the site area occupied by the equipment.
3. Simple operation and maintenance: As an wastewater treatment machine, the air flotation equipment is a kind of equipment with high degree of automation, easy to operate and easy to maintain, reducing the cost of manual maintenance.
4 Environmental protection and energy saving: The air flotation machine uses air float technology, in the treatment of sewage will produce fine bubbles, these bubbles can quickly adsorb suspended substances, oil pollution and other solid particles, can achieve the purpose of energy saving and environmental protection.
5. The treatment effect is stable and reliable: the DAF system adopts the physical treatment method, there is no chemical agent to the water pollution problem, the wastewater treatment effect is stable and reliable, suitable for all kinds of industrial and domestic sewage treatment.
Applications
Air floats are widely used in industrial and urban wastewater treatment, including food and beverage, papermaking, electronics, printing and dyeing, metallurgy, pharmaceutical, biological chemicals and other industrial fields as well as river, lake, pond and urban sewer and other urban environmental protection fields.
Because of its high efficiency, small footprint, simple operation and other characteristics, the bubble flotation device is a widely popular wastewater treatment equipment. The appearance of air flotation technology is a revolution to gravity sedimentation method, which opens up a new field of solid and liquid separation technology.