QDEVU Dissolved Air Flotation Machine(DAF)

Description 
For different wastewater, by adding appropriate agents, can remove 90%-95% of suspended solids, oil, colloid;  Removal of 30%-80% COD (reagent use and removal efficiency need to be determined by experiment);  Add decolorizing agent, phosphorus removal agent, heavy metal capture agent, can effectively remove chroma, phosphate ion and heavy metal ions.  

Application
Petrochemical wastewater, electroplating wastewater, textile printing and dyeing wastewater, food processing wastewater, catering wastewater, municipal wastewater, machinery processing wastewater, slaughtering and processing wastewater, papermaking wastewater, vegetable oil production wastewater, dairy production wastewater, tanning wastewater, biochemical precipitation, phosphorus removal, river and lake algae removal and phosphorus removal.  
 

Working principle  
No need air compressor, through the special structure of the dissolved air pump, realize the side into the water, side air inlet, air and water mix by high-speed rotating impeller, line into saturated dissolved air water, saturated dissolved air water into the dissolving tank, dissolved gas through dissolving tank at the top of the exhaust valve discharge tank, prevent into the backend release area big bubbles.  Saturated dissolved gas water enters the release zone through the release device to release decompression and produce a large number of small bubbles.  In the process of floating, small bubbles contact with suspended floc and oil in sewage and form large particles of floc. With the bubbles floating to the surface, the scum is pushed to the slag removal system through the round-trip movement of the scum scraper, and the scum is discharged to the sludge tank.  The purified sewage is discharged through the baffle and overflow tank.  

Features
1. No air compressor, low power consumption of equipment.  
2. High processing efficiency and small footprint.  
3. Can be customized, high degree of automation.  
4. Automatic slag scraping, slag, stable operation.  
5. Small bubbles, high gas dissolving efficiency, oil and suspended matter removal up to 90%-93%.  

Qingdao EVU Environmental and Engineering Equipment Co., Ltd. is established in 1999,it is one of scientific research design, equipment manufacture, installation, commissioning and training services as one integrated technology-oriented enterprises in water treatment industry. It is holding by Qingdao Spark Textile Machine Co., Ltd which is a national Spark Industrial Group, national second-level and large-scale comprehensive enterprise group in China.
We use the advanced technology and equipment over the world. Our main productions: Integrated Sewage Treatment Equipment, MBR Sewage Treatment Equipment(MBR), Electrocoagulation Sewage Treatment Plant(EC Plant), Reverse Osmosis Filteration Equipment(RO System), Dissolved Air Flotation Machine(DAF), Cavitation air Flotation Machine(CAF),  Aerator, Screw Press Sludge Dewatering Machine, Automatic Chemical Dissolved and Dosing machine, Sludge Scraper, Slag Scraper, The micro bubble generator, USAB anaerobic reactor, Bar Screen, Sand Filter and so on series products. 
We based on "technological development, pollution remediation, wholeheartedly for customer services". We hope to cooperate with all customers from all over the world and build a better world together.

  Our Company

  Our Products 
   Our Customers

Q1:Are you a factory or trading company?

We are a real manufacturer who can offer you both the most competitive price and top quality products.

Q2:Where is your factory located? How can I visit there?

Our factory is located in Qingdao City Shandong Province, All our clients, from home or abroad, are warmly welcome to visit us!

Q3:Can you put my company brand (logo) on the products?

Yes,we support OEM/ODM service,the customize process as follows:
1.Customers put forward personalized customization requirements.
2.Our engineer draw the design draft.
3.Customer confirm the design draft. 
4.Factory start to produce shipment. 

Q4:How to select right model?

You can tell us what you need, and we can help you choose the Model.Basic informations as follows:
Wastewater type : Industry wastewater, Domestic wastewater, food wastewater or others)
Capacity:m³/Day or m³/Hour?
Raw water quality: SS, Oil & Grease &Fat & FOG, PH,BOD,COD content?
Output water quality standard,for discharge or reuse?
Local voltage and frequency?

Q5: What is your MOQ?

Normally, our MOQ is 1 set.

Q6:What is the payment term ?

TT and L/C are acceptable and TT will be more appreciated, 30% deposit, 70% balance payment before shipment.

Q7: We haven't imported before, can you ship the goods to our warehouse?

Yes. Although our normal trade term is EXW, FOB, CIF, we can also arrange logistics to your warehouse.

Q8:What is the delivery time of your factory?

5-10 days for general series products, meanwhile, batches products & customized products would need 15-30 days based on different situations.Contact us for the exact time.

Q9:How do you ensure the quality of your products?

Generally, our equipment are the most durable type in the industry, this is also the feature of the label impression for most of our customers at home or abroad.Skilled workers and strict quality control system can ensure every machine with best working performance.

Q10:How to assemble the equipment once we received it?

The CAD install instruction, assembly procedure and project case will be provided.,Of course our skilled installation engineers would go to your country and install the equipment if needed.

Q11: What is your product warranty ?After sales service?

The warranty is 12 months while the lifetime is 10-15 years under good maintenance.It is durable and anti-corrosion.
Provide equipment certification and installation operating instructions.
Provide one-year spare parts.
Provide technical advisory services.
Provide guidance staff for installation and commissioning.