Sedimentation and Flotation Methods
Gravity vs. Buoyancy in Particle Removal
Sedimentation relies on gravity: particles denser than water settle to the bottom where they form sludge that can be removed, making it effective for heavier suspended solids and for applications such as clarification, thickening and sludge concentration. Flotation uses small air bubbles that attach to particles, increasing their buoyancy so they rise to the surface as a removable float—this is particularly useful for light or low‑density particles, oils and organic matter that would otherwise remain suspended.
Applications and Key Differences
Both techniques are applied across water treatment, food processing and medical diagnostics (parasite concentration), and are often combined with chemical precipitation and flocculation to improve performance. Key operational differences are the driving force (gravity vs. buoyancy), the recovery point (bottom vs. surface), and the particle types they best treat.
How We Can Help
Enwa offers among others compact, modular flotation and sedimentation solutions ready for connection and independent operation.
Flomar® Smart & Lugan® Systems
Our Flomar® Smart and Lugan® product lines provide automated, visualized control, robust tolerance to solids and elevated temperatures, and options for air saturation in main or secondary flow.
Consumables, Controls & Service
We supply consumables, intelligent controls for optimal floc formation, and dewatering containers, belt filters or chamber filter presses. Comprehensive service models—installation, commissioning, monitoring and maintenance—ensure reliable performance and tailored capacities (e.g., Lugan® 1–20 m³/h) for industrial washing wastewater and a wide range of other applications.
