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    Boosting Waste-to-Energy Efficiency – In Collaboration with HUBER SE’s Sludge Drying Technology

    Boosting Waste-to-Energy Efficiency – In Collaboration with HUBER SE’s Sludge Drying Technology

    HUBER SE, a leading specialist in wastewater solutions, is expanding its waste to energy systems as part of its commitment to a greener future. To support this mission, Kelvion provided two separate facilities with a complete thermal management package tailored to increase efficiency, reduce environmental impact, and meet stringent noise requirements.
    HUBER SE, a leading specialist in wastewater solutions, is expanding its waste to energy systems as part of its commitment to a greener future. To support this mission, Kelvion provided two separate facilities with a complete thermal management package tailored to increase efficiency, reduce environmental impact, and meet stringent noise requirements.

    Customised thermal solutions from a single source
    Both facilities aim to dry sludge – a by-product of wastewater treatment – and prepare it for energy recovery via incineration. Drying significantly enhances the calorific value of sludge, making incineration more efficient and transforming waste into a viable energy source.

    For the American site, Kelvion supplied stainless steel air heating coils manufactured at our facility in Sint Maartensdijk. These coils ensure the consistent and efficient heating of air needed to drive the belt drying process.

    At the European facility, where a more complex thermal solution was required, we delivered a tailored package comprising: Stainless steel coils for process heating, gasketed plate heat exchangers for condensate cooling, and adiabatic dry coolers with ultra-low-noise fans to meet noise-sensitive site restrictions.

    These components were finely matched to ensure optimal balance in performance, noise levels, investment cost, and long-term energy efficiency – key concerns for HUBER. The inclusion of redundant plate heat exchangers also adds operational reliability in the event of a unit failure.

    Trusted relationship
    The project is the result of more than two years of collaboration between HUBER SE and Kelvion. Building on a trusted relationship that includes several past projects, the teams worked closely throughout the planning and engineering phases to deliver a solution that could adapt to changing site requirements – such as replacing standard fans with super low-noise ventilators to eliminate the need for additional noise abatement structures.

    Thanks to Kelvion’s broad product portfolio and integrated approach, HUBER was able to source all components from a single provider, streamlining both procurement and system integration.

    The result
    Both plants represent the next step in HUBER’s long-term strategy to scale up sludge drying as a means of sustainable energy generation. With further projects already in planning, the cooperation between HUBER and Kelvion is set to continue.