Machinery Processing Wastewater Treatment Dissolved Air Flotation Daf Machine

Basic Info.

Model NO.




220V/ 380V/ Customerized



Service Life
10-30 Years

Water After Treated
Discharge / Recycle

Cod Removal Rate

Tss Removal Rate

Oil and Grease Removal Rate


Solid/Grease Separation

Transport Package
Standerd Export Package

5-500m³ /h



HS Code

Production Capacity

Product Description

Product 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.

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.  

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.  

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%.  

Model Capacity
Booster pump power
Total Power
WQP-5 5 3.0×1.0×1.2 1.5 1.75
WQP-10 10 3.5×1.2×1.5 2.2 2.25
WQP-20 20 5.0×1.5×1.5 3.0 3.37
WQP-30 30 6.0×1.8×2.0 4.0 4.37
WQP-50 50 7.0×2.0×2.0 7.5 7.87
WQP-70 70 9.0×2.0×2.0 10.5 10.87
WQP-80 80 9.5×2.5×2.0 11.5 11.87
WQP-100 100 12.0×2.5×2.0 18.5 19.00
WQP-150 150 14.0×3.0×2.5 22.0 22.55
WQP-200 200 16.0×3.0×2.5 37.0 37.75

Packaging & Shipping

Company Profile

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.


1.How to select right model?
  Capacity: m³/Day or m³/Hour
  Wastewater type: Industry wastewater, Domestic wastewater, food wastewater or others)
   Raw water quality: SS, Oil & Grease &Fat & FOG, PH,BOD,COD content

  Output water quality standard,for discharge or reuse
  Local voltage and frequency
2.After sales service?
 Provide equipment certification and installation operating instructions.
 Provide one-year spare parts.
 Provide technical advisory services.
 Provide guidance staff for installation and commissioning.