ENVIRONMENT
There is no single separator for every wastewater. DAF and lamella clarification solve different separation problems; the right starting point is the behaviour of your solids, not the name of the equipment.
| Question | Dissolved air flotation | Lamella clarification |
|---|---|---|
| How are solids removed? | Fine air bubbles carry suitable particles to the surface for removal. | Settleable particles move down inclined plates and collect as sludge. |
| When is it worth considering? | Oils, fats and lighter suspended solids that are difficult to settle. | Solids or flocs with good settling behaviour. |
| What should be checked? | Flotation response, chemical conditioning and float handling. | Settling tests, hydraulic loading and sludge removal. |
Float light solids; settle the solids that will settle
DAF is often considered for oil, fat and lighter suspended matter. Lamella clarification uses gravity and inclined plates for settleable solids. Coagulation and flocculation may help either process, depending on the wastewater.
Can a project use both?
Yes, when different stages need different separation duties. They are not automatically interchangeable, and using both is not automatically better. Check what each stage needs to remove and how the resulting sludge will be handled.
Start with three useful inputs
- Wastewater source and design flow.
- Suspended solids, oil and grease, and available water analysis.
- Settling or flotation test results, if available.
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Equipment supply and support
We assess suitable manufacturers, work through your technical requirements, follow production and quality, and coordinate documents and shipment. You have one G-LINK contact keeping the work moving across the factories involved.