Dissolved Air Flotation (DAF) System
Physico-Chemical Wastewater Treatment for Industrial Wastewaters
Reinforced System Solutions for Industrial Application Requirements
Our physico-chemical treatment processes are designed to specifically remove suspended solids, fats, and other contaminants from industrial wastewater.
In flotation systems, the smallest solids and fats are transported to the surface using finely distributed air bubbles, where they are subsequently separated. Oil separators efficiently remove oils and fats from wastewater — an important step, for example, in food processing. Compact sedimentation systems ensure that heavy particles settle at the bottom and can be removed.
These processes often operate as the first treatment step to relieve subsequent biological processes and increase overall efficiency.
All systems are space-saving, low-maintenance, and can be flexibly integrated into modular container solutions. This provides customers with an immediately operational, cost-effective solution — ideal even in situations with limited space or fluctuating wastewater volumes.
Dissolved Air Flotation (DAF) System
The Dissolved Air Flotation (DAF) system is a physical treatment process for industrial wastewater purification that efficiently removes suspended solids, fats, and oils. The process involves dissolving air under pressure in the wastewater, which is subsequently released at normal pressure in the flotation tank. The resulting micro-bubbles attach themselves to the contaminant particles, causing them to rise to the surface. Here, they are mechanically skimmed off using a skimmer.
This method has proven particularly effective in the food industry, chemical sector, paper production, and refineries. For explosive media, nitrogen can be used instead of air for bubble formation, ensuring safe operation in hazardous environments.
Module Types Overview
Module Type | Flow rate (m³/h) | Nominal Electric Power (kW) | Shipping Size (mm) |
|---|---|---|---|
FLEXBIO-DAF-10 | 5-10 | 2.5 | 3,800 x 1,400 x 1,700 |
FLEXBIO-DAF-20 | 10-20 | 2.8 | 4,600 x 1,900 x 2,100 |
FLEXBIO-DAF-30 | 15-30 | 3.1 | 6,200 x 1,900 x 2,200 |
FLEXBIO-DAF-40 | 20-40 | 3.6 | 7,000 x 2,450 x 2,400 |
FLEXBIO-DAF-60 | 30-60 | 4.2 | 9,000 x 2,450 x 2,400 |
FLEXBIO-DAF-90 | 45-90 | 5.6 | 11,500 x 2,450 x 2,400 |
Note: Additional sizes available upon request. The system is available as a plug-and-play solution in container design. Depending on the wastewater quality, the use of flocculation and coagulation agents, as well as pH regulation between 6 and 9, may be required. The actual efficiency of the plant may vary depending on the industry, substrate composition, and characteristics of the wastewater.
Polymer Application in Wastewater Treatment and Solids Separation
The FlexBio Polymer Dosing Stations ensure precise and efficient processing of liquid and powder polymers — essential for successful precipitation and flocculation of fine particles and dissolved contaminants in industrial and municipal wastewater treatment plants.
Thanks to automated and continuous operation, optimal ripening conditions and constant polymer concentrations can be achieved — ensuring stable processes and maximum operational safety.
Our polymer stations are available as modular compact units in various configurations — for powder polymers, emulsion polymers, or as combination stations with automatic switching.
All variants are equipped with: high-quality control technology (Siemens), robust HDPE construction, clear and user-friendly design.
This comprehensive approach guarantees reliable performance and efficient operation in wastewater treatment processes.
Module Types Overview
Modultyp | Polymer Form | Nominal Electric Power [kW] | Capacity [l] |
|---|---|---|---|
PS-600 | Powder Polymers | 0.9 | 600 |
PS-1500 | Powder Polymers | 1.2 | 1,500 |
PS-3000 | Powder Polymers | 1.5 | 3,000 |
LS-600 | Emulsion Polymers | 0.5 | 600 |
LS-1500 | Emulsion Polymers | 0.7 | 1,500 |
LS-3000 | Emulsion Polymers | 0.8 | 3,000 |
PLS-600 | Emulsion & Powder Polymers | 1.1 | 600 |
PLS-1500 | Emulsion & Powder Polymers | 1.3 | 1,500 |
PLS-3000 | Emulsion & Powder Polymers | 1.7 | 3,000 |
Function: The polymer dosing station consists of several chambers for mixing, ripening, and dosing of polymers. An integrated stirring system ensures homogeneous mixing while a flow restrictor guarantees the required ripening time. The systems are ready for connection and can process powder, emulsion, or both types of polymers depending on the specific model. The throughput capacity varies depending on the ripening time required for the particular polymer being used. This design ensures efficient preparation and precise dosing of polymer solutions, which is essential for optimal performance in water treatment processes.
0
Delivered Projects
0
Ongoing Projects
0
Energy Generated (TWh)
0
