Krofta Sandfloat
Flocculation, Flotation and Filtration in one


Krofta Sandfloat: A Revolution in Compact Efficiency
The Krofta Sandfloat is a unique solution combining three critical water treatment processes: flocculation, flotation, and filtration, into a single, compact system. This integration allows facilities to meet stringent water quality requirements while saving space, time, and operational costs. Each process plays a pivotal role:
- Flocculation: Optimizes the aggregation of fine particles into larger flocs using advanced mixing techniques and chemical dosing.
- Flotation: Employs the patented Air Dissolving Tube (ADT) to generate microbubbles that attach to flocculated solids, lifting them to the surface for easy removal.
- Filtration: Utilizes high-performance media beds to remove remaining suspended particles, producing water of exceptional clarity.
A unique all-in-one design
What sets the Krofta Sandfloat apart is its compact, all-in-one design, dramatically reducing space requirements and installation costs.
Its continuous online backwash ensures uninterrupted operation, making
it an ideal choice for industries needing consistent, high-quality water
treatment.
The system’s adaptability to various filtration media and
hydraulic capacities further underscores its versatility.
Key Features
- Continuous Backwash: Ensures uninterrupted operation and high throughput.
- Compact Design: Stainless steel construction with minimal footprint.
- Versatile Applications: From potable water to industrial wastewater polishing.v
How the Krofta Sandfloat works
- Flocculation Chamber: Raw water mixed with flocculants is introduced into the flocculation chamber, where precise mixing ensures the aggregation of fine particles into larger, settleable flocs.
- Air Dissolving Tube (ADT): Aerated water from the patented ADT enters the flotation zone. The ADT produces uniform microbubbles that attach to flocculated solids, improving separation efficiency.
- Flotation Zone: The combined flow moves through a specialized baffle system that reduces turbulence. Microbubbles lift the flocculated solids to the surface, creating a sludge layer.
- Sludge Removal: A spiral scoop continuously removes floated sludge from the surface, depositing it into a sludge hopper for collection and disposal.
- Filtration Media: Below the flotation zone, high-performance filter beds remove remaining suspended particles, polishing the clarified water for discharge or reuse.
- Continuous Backwash: Individual filtration segments undergo backwashing without disrupting the operation. This ensures sustained filtration efficiency and prevents media clogging.
- Effluent Collection: The clarified and filtered water is collected and discharged through a central outlet, meeting the highest water quality standards.
- Advanced Filtration Media: Options for sand, anthracite, and multi-media configurations to suit specific needs.
- Self-Sufficient Design: Integrated recycle system minimizes water loss and optimizes performance.
Why choose the Krofta Sandfloat?
- Space Efficiency: Combines multiple processes into a single unit, reducing the need for additional equipment.
- Cost Savings: Consolidated design minimizes construction and operational expenses.
- Exceptional Clarity: Produces water compliant with the most stringent potable and industrial standards.
Applications and Success
The Sandfloat is ideal for:
- Potable Water Treatment: Ensures safe, high-quality water for consumption.
- Industrial Effluent Polishing: Delivers superior clarity for reuse or discharge.
- Municipal Treatment Plants: Streamlines operations while meeting regulatory demands.

Try or Rent a Krofta Sandfloat
Ready to revolutionize your wastewater treatment process? Contact us today to try or rent a Krofta DAF Sandfloat system.
- Krofta DAF Sandfloat technology assessment
- Plant expansion
- Planned maintenance
- Emergency intervention
- Medium and Long Term renting solutions
Start Krofting. Contact us today.
Need a Krofta DAF? We are looking forward to sharing insights on the most efficient solution for your liquid-solid separation challenge.