Daftech Engineers Private Limited
Daftech Engineers Private Limited
Sector 7-C, Chandigarh
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Primary Treatment of wastewater with air flotation

Our range of products include wastewater primary treatment dissolved air flotation units.

Wastewater Primary Treatment Dissolved Air Flotation Units

Wastewater Primary Treatment Dissolved Air Flotation Units
  • Wastewater Primary Treatment Dissolved Air Flotation Units
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Product Details:

Minimum Order Quantity1 Piece
Max. Capacity Excluding Recycle1247 m3/hr.
Diameter1.2 to 16.8 meter
Feed Flow Rate (cubic-meter/day)120 m3 to 29
Type Circular
Inlet TSS (Mg/L)Up to 2000 ppm
Treatment Capacity5m3/hr to 1250m3/hr
Water Source Municipal Sewage, Industrial Effluent, Commercial Waste Water
Treatment Capacity (m3/h)5 m3/hr to 1250 m3/hr
Industry Dairy Industry, Paper Mills, Chemical/Petroleum Industry, Pharmaceutical Industry, Leather Industry, Automobile, Slaughter House
Air flow rate(m3/h)Depends on the Floatcell size
Surface Area (m2)1.02 m2 to 197.95 m2
Applicable IndustryChemical Industry, Slaughter House, Food Industry, Oil refining Industry
Treated Water QualityTSS 100 ppm or less
Dimensions (Mtrs)Dia 1.2 meter to 16.8 meter
Treatment Stages Primary Treatment, Preliminary Treatment
Installation Type Prefabricated
Bridge Type Half Bridge, Full Bridge
Tank Diameter1.2 meter to 16.8 meter
Dimensions (in meters)Diameter 1.2 meter to 16.8 meter
Volume (in cubic-meters)0.225 m3 to 62.37m3
Surface Area (in meter-square)1.02 m2 to 197.95 m2
Hydraulic Loading9.6 m3/m2/hr
Solids Loading16 kg/m2/hr
Tank Height650 mm
Installation/Civil WorkInstallation Available
Approximate Power Consumption (in kW)Depends on Floatcell Size
Manufacturing Lead Time3 months
Material of ConstructionPU-coated MS, SS 304, SS316, SS316L, Duplex Steel

Dissolved Air Flotation is the preferred option for primary treatment where the contaminants are fine suspensions, colloids, oil and grease and flocculable colour. Depending on the fraction of suspensions and oil grease that exert BOD, reducion efficiency of BOD in the range of 25% to 90% is achievable. Below is a comparison of DAF clarifier with conventional sedimentation clarifier:

1. Daftech clarifier has a retention time of 3 minutes against 2 hours in a sedimentation clarifier.

2. TSS removal of 98% is possible whereas in a conventional clarifier the average efficiency does not exceed 70%.

3. Oil removal down to 10 ppm is possible whereas in a conventional clarifier there is no possibility of removing O&G.

4. The higher efficiency of BOD removal in a DAF clarifier results in lower energy consumption in downstream biology.

5. Sludge consistency as high as 3 to 3.5% is achievable against 1 to 1.2% in a sedimentation clarifier.

6. Sludge flows by gravity whereas in a conventional clarifier sludge transfer would require sludge pumps.
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Additional Information:

  • Item Code: HSN84212900
  • Pay Mode Terms: L/C (Letter of Credit),T/T (Bank Transfer)
  • Port of Dispatch: Any Indian Port
  • Production Capacity: 3 units per month
  • Delivery Time: 3 months
  • Packaging Details: Sea-worthy
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Shaju Peter (Managing Director)
SCO 23, Inner Market, Sector 7C
Chandigarh -160019,India



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