Sewage purification,DAF wastewater treatment equipment
About us
14 years old direct manufacture factory,with 10 years export experience.
Cooperated with UNDP,Ministry of healthy and many govenment projects.
Why choose us
1.We consistent good quality with reasonable.
2.Big company ,good reputation,more reliable.
3.Delivery in time.
4.Over 15 years' experience since 2006.
5.Consideration after-sales service.
Technical support
1.3D operation video.
2.English manual book.
3.Technical drawing.
4.Experienced engineers guide.
Our service
1.24-hour a day 365-day a year access to a toll-free healthy care professional hotline for questions and trouble-shooting assistance FREELY.
2.All year round on site installation and debugging service abroad with professional engineers guide and training.
Product description
1.dissolved air flotation Wastewater Treatment Machine Daf for Plastic washing Factory Sewage Treatment is a water treatment process that clarifieswastewaters (or other waters) by the removal of suspended matter such as oil or solids.
2.The removal is achieved by dissolving air in the water or wastewater under pressure and then releasing the air at atmospheric pressure in a flotation tank basin.
3.The released air forms tiny bubbles which adhere to the suspended matter causing the suspended matter to float to the surface of the water where it may then be removed by a skimming device.
Application
1.Remove oil and TSS.
2.Separate small particles and algae in groundwater.
3.For the recovery of useful substances,such as: paper white water in the collection of fine fibers.
4.Act as secondary sedimentation tank to separate and concentrate suspended particles and sludge.
Dissolved air flotation is very widely used in treating the industrial wastewater effluents from
A.oil refineries,
B.chemical plants,
C.natural gas processing plants,
D.paper mills,
E.general water treatment and similar industrial facilities.
Advantage
(1) Large capacity, high efficiency and small occupying space.
(2) Compact structure, easy operation and maintenance.
(3) Silt expansion elimination.
(4) Aerate to the water while air floating, it has an obvious effect to the elimination of active agent and foul smell in water. Meanwhile, the increased dissolved oxygen provides a favorable condition to the follow-up process.
(5) It can achieve the best effect in adopting this method when disposing the water with lower temperature, lower turbidity and more algae.
Working Principle
Based on different water source and different water quality, The feed water to the DAF float tank is often (but not always) dosed with Flocculant and coagulant (such as PAC and PAM) to coagulate the colloidal particles and a flocculant to conglomerate the particles into bigger clusters .
A portion of the clarified effluent water leaving the DAF tank is pumped into a small pressure vessel (called the air drum) into which compressed air is also introduced. This results in saturating the pressurized effluent water with air. The air-saturated water stream is recycled to the front of the float tank and flows through a pressure reduction valve just as it enters the front of the float tank,which results in the air being released in the form of tiny bubbles. Bubbles form atnucleation sites on the surface of the suspended particles, adhering to the particles. As more bubbles form, the lift from the bubbles eventually overcomes the force of gravity. This causes the suspended matter to float to the surface where it forms a froth layer which is then removed by a skimmer. The froth-free water exits the float tank as the clarified effluent from the DAF unit.
Based on water quality, we can add sedimentation device at the bottom of the DAF machine, it can make the particles (such as sludge, sand) that easy to sedimentation setting into the bottom of tank .
Technical Parameter
| Specification |
Capacity (m3/h) |
Dissolved gas water
(m3/h) |
Main dynamo power (kw) |
Foam scraper power
(kw) |
Air compressor power
(kw) |
Dissolved air tank size
(mm) |
Overall dimension (mm) |
| YW-5 |
2-5 |
1.5-2 |
3 |
0.55 |
1.5 |
Φ400x1000 |
3300x1800x2200 |
| YW-10 |
8-10 |
2-3 |
4 |
0.55 |
1.5 |
Φ500x1512 |
4000x2100x2200 |
| YW-20 |
15-20 |
5-7 |
7.5 |
055 |
1.5 |
Φ500x1512 |
4600x2400x2200 |
| YW-30 |
20-30 |
6-10 |
7.5 |
0.55 |
1.5 |
Φ500x1512 |
5200x2600x2400 |
| YW-40 |
30-40 |
8-13 |
7.5 |
0.75 |
2.2 |
Φ600x1880 |
6000x2600x2400 |
| YW-50 |
40-50 |
15-20 |
7.5 |
0.75 |
2.2 |
Φ600x1880 |
7000x2600x2400 |
| YW-60 |
50-60 |
18-27 |
11 |
0.75 |
2.2 |
Φ600x1880 |
7600x2800x2400 |
| YW-70 |
60-70 |
22-30 |
11 |
0.75 |
3 |
Φ650x2034 |
8400 x2800x2400 |
| YW-80 |
70-80 |
24-32 |
11 |
0.75 |
3 |
Φ650x2034 |
9200x2800x2400 |
| YW-100 |
90-105 |
30-35 |
15 |
0.75 |
4 |
Φ700x1980 |
10000x2800x2600 |
| YW-150 |
125-150 |
60-80 |
22 |
1.1 |
4 |
Φ800x1980 |
13500x2800x2600 |
| YW-200 |
175-200 |
80-100 |
22 |
1.1 |
5.5 |
Φ800x2100 |
15800x2800x2600 |
| YW-250 |
225-250 |
110-120 |
22 |
1.1 |
5.5 |
Φ800x2400 |
15200x3400x2600 |
| YW-300 |
280-300 |
120-180 |
37 |
1.1 |
5.5 |
Φ1000x2900 |
19200x3400x2800 |
FAQ
1.Q:Are you a factory or trading company?
A: We are a factory, we have rich experience for manufacuring water processing equipment for more than 10 years.
2.Q:Where is your factory located? How can i visit there?
A: Our factory is located in No.1137 Guanhai road , Zhucheng City, Shandong Province, China. It is about 2 hours from Qingdao airport. We can pick you up if you need, welcome to visit our factory.
3.Q: Do you have minimum order quantity request?
A: No minimum order, but it can get a discount if you order a large quantity.
4.Q: Do you have certificates?
A: Yes, we have ISO,SGS,CE certificate.
5.Q: Can you meet my special requirements for my products?
A: Yes, we have a professional design team. We can provide drawings according to your requirements.
6. Q: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).
7. Q: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.
8. Q:What is the delivery time?
A: It depends on order quantities. Generally speaking, the delivery time will be within 4 to 6 weeks.
9. Q: 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.
10. Q: 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.
11. Q: How do you manufacture your equipment ?
A:Our machining technology includes laser/plasma cutting, automatic welding,CNC cutting and bending.
12. Q: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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