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SBSEnviro SeVAMI - Model DAF -Dissolved Air Flotation System for Wastewater Treatment
The SeVAMI Dissolved Air Flotation (DAF) system is engineered specifically for the removal and recovery of solid particles, fats, oils, and grease from wastewater and process water. The technology operates by generating fine air bubbles that attach to solid impurities, reducing their density and causing them to float to the water surface. This method efficiently separates lighter impurities like oil and grease, which would otherwise sediment very slowly or remain suspended. The DAF system features an integrated compact design with components such as an SS304 or MSEP body, flocculation unit, recycle-micro bubble pump, scrapper mechanism, sludge collection, and a PLC control panel. Solid particles heavier than water are also removed to some extent through this flotation process. Overall, flotation offers significant advantages over sedimentation by enhancing the buoyancy of solids to facilitate their removal.
Flotation involves separation of solids from the water phase by attaching the solids to fine air bubbles to decrease density of the particles so that they float instead of sinking. The rising solids are called the "float". The float is skimmed off the surface and further processed in the sludge treatment.
SeVAMI-DAF system is specially designed for removal/recovery of solids, fat, oil, grease from wastewater and process water.
Flotation is ideal process for separation of less dense/ lighter solid impurities which includes Oil, Grease, Fats having tendency to float to the water surface. Such solids would either sediment very slowly or would remain suspended.
It is possible to separate them by increasing buoyancy of solids and this is the principle of Floatation process.
Using this principle, solid rises to the surface of water from where it can be skimmed off. Solid particles with densities heavier than water also get attached with air bubbles at some extend and are removed by flotation.
- Simple operation.
- MS, EP or SS 304 construction.
- Compact rectangular construction.
- Different model available for Primary & Secondary applications.
- Wide range of flow.
- Cost effective.
- Ready to used assembly.
- Simple installation on column structure.
- High loading rate.
- Very thick float (Sludge) product.
- Float can be dewatered without intermediate thickening.
- Often no polymer is required, as it does not require large, dense floc. The coagulant dosage may also reduce to some extent.
- Smaller footprint required as compare to conventional flocculation and gravity sedimentation.
- Excellent Oil/Grease/Fat removal efficiency .
SeVAMI DAF Model comes with integrated compact design. System includes SS304/ MSEP body, flocculation unit, recycle-micro bubble pump, scrapper mechanism, Sludge collection, PLC control panel.
ADVANTAGES OF FLOTATION OVER SEDIMENTATION :
- Can remove low density particles which would require long settling periods.
- Ability to handle variable solids loading (can adjust air flow).
- Configuration of media permits lower air quantity by encouraging fine bubble diffused aeration system.
- High rise velocity permits small tank.
- Can provide high float concentration (good thickening).