Krofta Fiber Fractionation
Designed for the pulp and paper industry, the Krofta Spray Filter is designed for managing water and fiber resources.

Krofta Fiber Fractionation Technology: Revolutionizing Fiber Recovery
Efficient fiber recovery is a cornerstone of sustainable practices in the pulp, paper, and recycling industries. The Krofta Fiber Fractionation Technology offers an advanced, efficient, and sustainable solution to recover valuable long fibers from waste streams while minimizing ash and fines. This cutting-edge technology significantly enhances recycling efficiency, reduces waste, and maximizes resource utilization, making it a game-changer for the industry.
What is Fiber Fractionation?
Fiber fractionation is the process of separating longer, high-quality fibers from shorter fibers, ash, and other fines in waste streams. Long fibers are essential for producing high-grade products such as writing papers, printing papers, and tissue. The Krofta Fiber Fractionation Technology uses innovative spray and screen systems to recover these fibers, ensuring minimal loss and maximum quality.
How Krofta Fiber Fractionation Technology Works
The Krofta Spray Filter, a key component of the fiber fractionation process, employs a unique spray and screen system for precise separation:
- Water Inlet: Wastewater enters the Spray Filter and flows into a distribution header.
- Spray Nozzles: The header sprays water in a fan-shaped pattern onto a rotating drum screen.
- Rotating Drum Screen: Fine fibers, ash, and ink particles pass through the screen, while long fibers are retained and directed to a collection cone.
- Natural Cleaning Motion: The drum’s rotation and fluttering motion prevent clogging and maintain efficiency.
- Backwash System: Periodic cleaning with filtered water keeps the screen free of blockages and ensures consistent performance.
Key Features of Krofta Fiber Fractionation Technology
- Customizable Screens: Fabric screens range from 38 to 250 microns, tailored to specific applications.
- Compact Design: Space-efficient, making it ideal for retrofits or facilities with limited space.
- Durable Construction: Built for longevity, even in demanding industrial environments.
- Energy Efficiency: Operates at low pressure, reducing energy consumption.
Advantages of Krofta Fiber Fractionation Technology
- Recovers valuable long fibers from waste streams.
- Reduces fiber loss, improving recycling efficiency and lowering raw material costs.
- Produces clean, ash-free fibers for reintegration into production.
- Enhances the performance of downstream processes like de-inking and clarification.
- Reduces waste furnish costs by recovering fibers worth $1500–$2500 per day.
- Cuts disposal expenses by reducing sludge volume sent to landfills.
- Supports circular economy principles by minimizing waste and maximizing resource reuse.
- Reduces environmental impact through lower landfill volumes and enhanced water reuse.
Applications of Krofta Fiber Fractionation Technology
The Krofta Spray Filter and fiber fractionation technology are ideal for:
- De-Inking Mills: Recover long fibers from filtrates and flotation sludge.
- Pulp and Paper Industry: Enhance recycling processes for writing, printing, and tissue papers.
- Water Reuse Systems: Integrate with clarifiers like Krofta Supracell for advanced water treatment.
Why Choose Krofta Fiber Fractionation Technology?
Unlike traditional gravity or vibrating screens, the Krofta technology is specifically designed for fiber fractionation. Its advanced design ensures:
- Precise Fractionation: Separates long fibers without mat formation or fines retention.
- Robust Performance: Handles demanding industrial applications with ease.
- Fast ROI: Delivers quick returns through cost savings and improved process efficiency.
Transform Your Recycling Process with Krofta
Krofta Fiber Fractionation Technology is more than a solution—it's an innovation that drives efficiency, sustainability, and profitability. By recovering valuable fibers, reducing waste, and enhancing recycling processes, Krofta continues to lead the way in water and resource management.
Contact us today to explore how Krofta Fiber Fractionation Technology can revolutionize your operations!
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