DAF Unit Primary Wastewater Treatment Plant

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TypeCircular
IndustryPharmaceutical Industry, Leather Industry, Slaughter House, Paper Mills, Automobile, Dairy Industry,
Applicable IndustryFood Industry, Chemical Industry, Oil refining Industry, Slaughter House
Tank Diameter1.2 meter to 16.8 meter
Dimensions (in meters)Diameter 1.2 meter to 16.8 meter
Installation TypePrefabricated
Inlet TSS (Mg/L)Up to 2000 ppm
Bridge TypeHalf Bridge, Full Bridge
Tank Height650 mm
Solids Loading16 kg/m2/hr
Surface Area (m2)1.02 m2 to 197.95 m2
Hydraulic Loading9.6 m3/m2/hr
Dimensions (Mtrs)Dia 1.2 meter to 16.8 meter
Max. Capacity Excluding Recycle1247 m3/hr.
Water SourceIndustrial Effluent, Commercial Waste Water, Municipal Sewage
Diameter1.2 to 16.8 meter
Material of ConstructionPU-coated MS, SS 304, SS316, SS316L, Duplex Steel
Feed Flow Rate (cubic-meter/day)120 m3 to 29
Treatment Capacity5m3/hr to 1250m3/hr
Volume (in cubic-meters)0.225 m3 to 62.37m3
Approximate Power Consumption (in kW)Depends on Floatcell Size
Manufacturing Lead Time3 months
Air flow rate(m3/h)Depends on the Floatcell size
Treatment StagesPrimary Treatment, Preliminary Treatment
Surface Area (in meter-square)1.02 m2 to 197.95 m2
Treatment Capacity (m3/h)5 m3/hr to 1250 m3/hr
Installation/Civil WorkInstallation Available
Treated Water QualityTSS 100 ppm or less
Production Capacity3 units per month

Details :

Daftech clarifier has a retention time of 3 minutes against 2 hours in a sedimentation clarifier.
TSS removal of 98% is possible whereas in a conventional clarifier the average efficiency does not exceed 70%.
Oil removal down to 10 ppm is possible whereas in a conventional clarifier there is no possibility of removing O&G.
The higher efficiency of BOD removal in a DAF clarifier results in lower energy consumption in downstream biology.
Sludge consistency as high as 3 to 3.5% is achievable against 1 to 1.2% in a sedimentation clarifier.
Sludge flows by gravity whereas in a conventional clarifier sludge transfer would require sludge pumps.
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