Pulp & Paper Solutions

Turn Wasted Fibers into Recovered Revenue

Paper mill sludge dewatering is a problem that compounds fast. Production variability shifts waste stream composition, biological treatment loads increase, and conventional presses like belt amd screw presses struggle to keep pace. Diamond T’s Alfa Laval centrifuge systems handle the streams that cause conventional equipment to foul or blind, reducing sludge volumes and recovering fiber before it leaves in the effluent.

Alfa Laval

Rent or Buy Pulp & Paper Separation Equipment

Whether you need to rent or buy, Diamond T’s Alfa Laval centrifuge systems are specifically configured for paper industry applications. Our equipment handles what conventional technologies can’t, from challenging de-inking sludge with its abrasive particles to the biological waste that overwhelms traditional processes.

Unlike filter presses and settling systems, our centrifuges continuously process variable waste streams without fouling, blinding, or performance issues. Each system comes complete with custom-selected pumps, polymer dosing, and control systems matched to your specific waste characteristics, with availability in as little as 48 hours.

Rent or Buy Pulp & Paper Separation Equipment

Lynx Decanter Centrifuge

Belt Filter Press

Screw Press

Settling Pond

How dry is the output?

High DS

Drier output means less material to haul and dispose

Lower DS

Output quality degrades on difficult or variable streams

Moderate DS

Output quality drops as feed consistency changes

No Dewatering

Gravity settling only, output remains largely liquid

Does it handle changing waste streams?

Yes

Adjusts continuously to solids load

Partially

Feed variability causes clogging and manual intervention

Partially

Struggles on thin or dilute feeds

No

Only works on consistent, slow-settling material

Can it process de-inking sludge?

Yes

No internal filter media, so nothing clogs or wears out

Poor

Gritty particles clog and tear the filter belts

Poor

Gritty particles damage internal screens over time

Partially

Clay settles but dewatering is minimal

How much floor space does it need?

Compact

Self-contained skid that fits within existing facility footprints

Moderate

Belt wash and polymer systems add significant floor space

Compact

Similar footprint to a centrifuge

Very large

Acres of land

Why Paper Mills Choose Diamond T

As Alfa Laval’s Master Distributor, Diamond T carries the full product line and configures systems specifically for paper industry applications. 

That designation means access to the complete Alfa Laval decanter and solid bowl centrifuge range and the technical depth to match bowl geometry, polymer dosing, and pump selection to the specific demands of de-inking sludge, activated biological waste, or white water fiber recovery. We offer:

  • Industry-specific system design based on your actual waste stream characteristics
  • Complete packages with auxiliary equipment sized for your operation
  • Rapid deployment with availability in as little as 48 hours
  • Custom pilot testing to validate performance before full deployment
  • 24/7 support from liquid-solid separation specialists

We deal with challenging slurries and tight product specs, so we needed a partner who understands process nuance, not just hardware. Diamond T brought cross-industry separation expertise that immediately improved our approach, and their team helped our operators understand the ‘why’ behind the settings. The equipment has been rock-solid, and their technical support is excellent.

Process Engineer, Manufacturing Company

Pulp & Paper Applications

Diamond T’s Alfa Laval centrifuge systems cover the full range of paper mill separation challenges, from fiber recovery in early-stage process water to difficult biological sludge at the back end of treatment.

We can assist with a wide range of applications, including:

  • White water (process water containing fine fibers) recovery and reuse
  • Primary and secondary sludge dewatering
  • De-inking waste processing and volume reduction
  • Biological treatment sludge management
  • Coating waste recovery and dewatering
  • Settling pond replacement and footprint reduction
  • Lime mud and chemical recovery stream dewatering
  • Discharge quality improvement
  • Clarifier underflow concentration and processing

Pulp & Paper Solutions FAQs

What is fiber recovery, and why does it matter for paper operations?

Fiber recovery captures valuable materials lost in wastewater streams, generating immediate economic and environmental benefits. Recovering short fibers from white water and process streams reduces raw material costs, cuts disposal volumes, simplifies permit compliance, and demonstrates environmental stewardship.

Many paper mill waste streams contain recoverable materials with real market value when properly separated and processed. For instance:

  • De-inking operations recover clay and coating materials for beneficial reuse
  • Primary clarification sludge yields recoverable fibers for lower-grade products
  • Biological treatment solids become soil amendments or fertilizer products
  • Lime mud from chemical recovery processes can be reclaimed and reused

The key is separation technology that produces consistent, properly dried products that meet quality standards.

Paper mills employ various approaches for waste treatment and volume reduction:

  • Settling ponds and clarification systems
  • Save-alls and disk filters for fiber capture
  • Belt filter presses and screw presses
  • Gravity thickeners and flotation units
  • Chemical treatment and flocculation
  • Vacuum filters and rotary systems
  • Membrane filtration technologies

Centrifuges overcome the limitations of traditional systems: enclosed processing prevents odors, continuous operation handles variable streams, and drier solids reduce disposal costs while enabling reuse. For a detailed look at how centrifuges stack up against screw presses and filter presses across key performance criteria, see our equipment comparisons.

Our paper industry systems feature Alfa Laval’s industrial centrifuge technology, integrated with complete process support equipment:

  • High-performance decanter centrifuges with paper-specific modifications
  • Solid bowl centrifuges for applications requiring clarified white water
  • Heavy-duty progressive cavity pumps designed for variable consistency
  • Automated polymer dosing and chemical injection systems
  • Storage and containment tanks sized for process volumes
  • Flow measurement and monitoring instrumentation
  • Complete electrical packages with operator controls
  • Technical service support and operator training programs

Centrifuge-based solutions address the operational and financial challenges your mill faces, including:

  • Substantially lower disposal costs through major volume reduction
  • Improved recovery of valuable fibers from process streams
  • Effective dewatering of difficult biological treatment sludges
  • Continuous automated operation requiring minimal operator attention
  • Stable, reliable performance despite changing waste characteristics
  • Compact equipment footprint compared to settling basins or filter presses
  • Capability to process mixed sludges that defeat conventional equipment
  • Consistent discharge quality ensuring permit compliance
  • Rapid installation compared to constructing permanent treatment infrastructure

Absolutely. Every system is configured to handle your specific waste characteristics, including composition, solids content, fiber types, chemical properties, and flow rates. We analyze waste samples, select the appropriate centrifuge models, and optimize operating parameters to deliver the dewatering performance and discharge quality required for your operation, ensuring cost-effective disposal and compliance.

Paper industry waste management presents demanding operational and regulatory requirements that require specialized solutions:

  • Variable waste streams: Equipment that responds to production changes
  • Difficult biological sludges: Systems that effectively dewater activated sludge
  • Space constraints: Compact designs that fit within existing facility footprints
  • Operational reliability: Continuous processing without frequent maintenance
  • Cost control: Technology that maximizes volume reduction and fiber recovery
  • Regulatory pressure: Solutions addressing settling pond closure mandates

For facilities managing broader industrial waste streams alongside paper operations, Diamond T’s capabilities extend across clarifier underflow, settling pond replacement, and discharge compliance.

Paper facilities need waste systems that operate reliably without creating maintenance emergencies. Our comprehensive support keeps your systems running:

  • Pre-installation consultation and system sizing
  • On-site equipment commissioning and operator training
  • 24/7 emergency service and technical support
  • Preventive maintenance programs
  • Immediate parts replacement and backup equipment
  • Remote monitoring and troubleshooting capabilities
  • Environmental compliance documentation and reporting

Diamond T Services ensures you have the right waste management solution while keeping costs under control. Access our premium separation technology with these flexible options:

  • Rent Rent a centrifuge to minimize capital investment, eliminate maintenance concerns, and get reliable, high-performance equipment with full technical support for your liquid-solid separation challenges.
  • Buy Purchase new or used industrial centrifuges, configured for your specific application, with rapid shipping turnarounds as fast as 48 hours.

Pilot Program — For a fraction of full equipment costs, our pilot program validates system performance with your actual waste materials and processing conditions.

Get Started with Pulp & Paper Solutions Today

With disposal costs rising and environmental requirements tightening, efficient waste management directly impacts both compliance and profitability. Diamond T delivers ready-to-deploy centrifuge systems specifically engineered for paper industry applications, backed by specialists who understand your operational realities.

Whether recovering valuable fibers from process streams, dewatering difficult biological sludges, or managing challenging coating wastes, our solutions provide reliable performance under the demanding conditions of modern paper manufacturing.