Explore how Roto Pumps transforms biogas operations with high-performance progressive cavity pumps—backed by real-world case studies and engineering innovations.

As the world shifts toward renewable energy, biogas stands out as a leading solution for sustainable waste-to-energy conversion. However, handling viscous, solid-laden biomass presents persistent mechanical challenges for plant operators. Roto Pumps meets this demand head-on with a suite of expertly engineered progressive cavity pumps.

With more than five decades of pumping experience and more than 5,000 fluid types handled globally, Roto has emerged as a reliable partner for the biogas industry—offering both technical innovation and field-tested durability.

Real-World Results: Katharos Biogas Plant, UK

A leading biogas facility in the UK was experiencing repeated failures with its existing equipment while transferring digestate return from maize and sugar beet. The plant reported:

• Reduced flow rate, limiting overall plant capacity
• Frequent breakdowns of internal pump components, particularly pin & bush joints, causing downtime

Roto’s Tailored Solution:

After a detailed site assessment, Roto’s technical team recommended an RM Series pump installed with Universal Cardan Joints to replace the failing components. By operating the system at lower speeds while retaining the original 30 kW motor, Roto was able to:

• Boost flow rate to meet operational needs
• Extend the life of coupling joints
• Eliminate the cost of motor replacement and electrical rewiring

 

Despite requiring structural dismantling for installation, the pump was operational in just three days. Impressed by the rapid performance improvement, the customer immediately ordered a second pump for digestate feed duties.

 

Roto’s Comprehensive Pump Range for Biogas

Biomix Pumps (WBDB/M Series)

Ideal for primary mixing and transfer, these pumps come with large auger feed screws and customizable hopper designs. They’re built to optimize homogenization—directly contributing to increased gas yield.

Biomass Pumps (RBDK/VBDK Series)

Used for recirculation, transfer to digestate tanks, and open lagoon applications. With MIP (Maintenance in Place) technology and cartridge seals, these pumps reduce downtime and improve service life.

RM Series for High-Pressure Biowaste Transfer

Roto’s RM series, featured in the Katharos case study, can handle:

• Up to 500 m³/hr flow
• Up to 48 bar pressure
• Dissolved solids content up to 8%
  Perfect for transferring slurry and digestate into fermentation tanks or open lagoons.

Maintenance Made Simple: KWIK Series and Wear Compensation

Roto’s KWIK series pumps feature clamp systems, dual inspection windows, and split coupling rods—all designed to enable single-person, in-place maintenance. The optional Wear Compensation Stator helps operators adjust for rotor-stator wear, extending operational life without costly downtime.

       Why Biogas Operators Choose Roto Pumps

• Local service hubs, like the one in Manchester, provide rapid part availability and technical support
• Customized retrofitting options at competitive pricing help replace OEM parts with minimal disruption
• Proven success with global installations, from Italy to India to Germany
• Ongoing innovation, including patented designs and pump configurations for challenging biogas media

Proven Innovation for a Cleaner Energy Future

In the evolving world of renewable energy, biogas stands out not only for its sustainability but for its complexity. From slurry feed to digestate transfer, the pumping challenges are unique—and unforgiving. Roto Pumps meets those challenges with more than just equipment. We deliver engineered confidence.

Through decades of hands-on experience, continuous innovation, and a deep understanding of fluid behavior, Roto has become a trusted name in biogas operations worldwide. Whether it’s increasing throughput with Biomix pumps, minimizing downtime with KWIK serviceability, or delivering custom solutions like the RM series for thick, abrasive media—our pumps don’t just perform. They transform operations.

As shown in real-world applications like the Katharos biogas plant in the UK, our solutions translate to higher efficiency, lower maintenance costs, and faster results. That’s not just a promise—it’s a pattern of performance.

Let’s Talk Biogas Solutions

If your biogas operation is ready to upgrade reliability, improve energy yield, and reduce long-term costs, it’s time to partner with Roto Pumps. The future of waste-to-energy depends on smarter systems—and we’re ready to help you build them.

Whether you’re building a new biogas plant or optimizing an existing one, Roto Pumps delivers reliable, efficient solutions tailored to your media, flow, and pressure requirements. Contact us today:

📧 sales@rotopumps.co.uk
🌐 www.rotopumps.co.uk