Dissolved air flotation machine
Brief introduction of DAF machine
Main effect:
Dissolved air flotation (DAF) is a proven and effective physical/chemical technology for treating a variety of industrial and municipal process and wastewater streams. DAF systems are commonly used for the removal of oils & greases and suspended solids to meet a variety of treatment goals including:
1.Product recovery and reuse
2.Pretreatment to meet sewer discharge limits
3.Pretreatment to reduce loading on downstream biological treatment systems
4.Polishing of biological treatment effluent
5.Thickening of biosolids
6.Product recovery and reuse Pretreatment to meet sewer discharge limits
7.Pretreatment to reduce loading on downstream biological treatment systems Polishing of biological treatment effluent ,thickening of biosolids
Work Principle of DAF machine
1. Add flocculant and intermixture into sewage.Air compressor send air to air tank
2. Pump send flocculating suspended wastewater to the pool.
3. Jet flow device take air to dissolving-air tank,the air will be forced to dissolve into water under 0.35Mpa pressure and forming dissolved air water.
4. The dissolved air water will be sent to air flotation tank.
5. When the press reduce suddenly,air will dissolve out the water and form vast microbubbles,then fully contact the flocculating suspended matter and float to the surface.
6. Surface sludge rollers will collect the solid on the water surface.removing SS and CODcr etc.
Technical parameters of DAF machine
Main Structure of DAF machine:
1)Air flotation machine:steel structure, it is the main body and core of DAF, which inside is composed of releaser,uniform distribution device,sewage pipe,outlet pipe,sludge tank and scraper system etc.
2) Dissolved air system is mainly composed of dissolved air tank, air storage tank, air compressor and high pressure pump, dissolved tank is the critical parts of system, its function is realize water and air fully contact , speed up air dissolve, which is a closeness Withstand Voltage steel tank, its inside equip with baffle plate,sleeve, to speed up air and water speed, improve dissolved air efficiency.
3) Chemical dosing system: metering pump, mixing motor, PE tank .
Model list of DAF machine
Grouped equipment for DAF machine
1. Chemical dosing system : add PAC PAM liquid to wastewater.
2. Pipeline flocculator : Make sure PAM PAC liquid with wastewater mixed enoughly
Feature:
1).Dissolved air pump edge bibulous the edge is inspiratory, pump pressurized mix within, gas to liquid efficient dissolving, small bubbles than 30 um.
2).Low voltage operation, the dissolved gas efficiency is as high as 99%, release rate as high as 99%.
3).Tiny bubbles and suspended particles of efficient adsorption, improve the SS remove effect.
4).Dissolved gas water dissolving efficiency 80-100%, than traditional dissolved gas floating high efficiency three times.
5).Pressure-capacity curve smooth, easy to achieve automatic control, easy to operate, easy maintenance, low noise.
6).Large treatment capacity,high efficiency,occupies less.
7).Technology process and equipment sample,easy to use and maintain.
8).Can eliminate sludge bulking.
9).When working,the aerator will send air to the water,can remove the surfactant and odour effectively.At the same time,aeration can add the dissolved air quantity in the water,which will provide advantages to follow-up units.
10).For low temperature,low UTN,algae-containing water,air flotation technology will be the best choose.
Industrial Applications
Poultry processing, Meat processing ,Laundries and textiles ,Egg processing ,Byproduct rendering, Pulp and paper, Plastics recycling, Dairy and milk products, Metal plating and finishing, Bakeries ,Confectionaries, Food processing, Snack food processing, Beverage, Petroleum and petrochemical refining ,Natural gas and petroleum fracking ,Biochemical ,Personal care products
Municipal Applications
Waste activated sludge thickening, Biological solids clarification ,Phosphorous removal, Algae removal.
 | 1.Professional design for you According to the actual needs of professionals will be free to design targeted programs and products to ensure efficient complete solution actual demand. |
2.Strict product examination Professional advanced processing equipment and skilled workers, to build an advanced DAF equipment. |  |
 | 3.Professional after sale service For equipment installation, specialized personnel will provide overseas equipment installation guide, commissioning, operation, maintenance instructions. |
Qingdao Yimei environment project Ltd. Found in 1988,located in maxi Chinese military affairs harbour base Jiao Nan City.Occupy about 36,000 square metres, 15,000 square metres workshop building, have each kind of processing machine about 130 pcs, as one of Shandong Province environment protection industrial association trustee member unit, now have staff about 300 person, 72 engineers and technicians, mainly engaged in the environment project, environmental protection equipment design and manufacture, water treatment technological development, engnieering construction, technical service and series of products of client customized.
We have the well experienced engineer, strong specialized production base, advanced manufacturing facilities, and can supply the first-rate product and special field consulting service.
In the long rang concentrates efforts on environment protection cause investing in construction, complete sets of equipment and project overall contracting.
Certifications
1. How to buy your idea products? A:You can provide us your water sources, water quality, flow rate and ground area (connect us for more details).
2. How to pay? A: TT and L/C are acceptable and TT will be more appreciated. 30% deposit before producing, 70% balance before loading by TT.
3. What is the delivery time?
A: It depends on order quantities. Generally speaking, the delivery time will be within 4 to 6 weeks.
4. How to pack the products?
A: We use standard package. If you have special package requirements, we will pack as required, but the fees will be paid by customers.
5. How to keep your equipments from corrosion?
A: We use the world-famous paint, like SigmaCoatings,PainBow,etc. What's more, we paint strictly according to the standard process.
6. How do you manufacture your equipment ?
A:Our machining technology includes laser/plasma cutting, automatic welding,CNC cutting and bending.
7. How to install after the equipments arriving destination? A: We will provide detailed illustrations to you. If it is necessary, we will send technicians to help you. However, the visa fee, air tickets, accommodation, wages will be paid by buyers.
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