michel gmbh
About
SLUDGE-DRYING-SYSTEMS michel gmbh (SDS) is a German manufacturer specializing in energy-efficient, low-emission sludge drying technology. Headquartered in Bavaria's Lower Franconia region, SDS develops modular drying systems that combine contact and convection drying in a single unit, eliminating the need for building infrastructure and exhaust air treatment. The company's core product line is the IntelligentDRY®-controlled cascade dryer (SDS-Kaskadentrockner), which uses a low-temperature process to gently dry sludge without producing vapors or odors, alongside a dedicated low-temperature dryer (Niedertemperaturtrockner) for heat-sensitive applications. Both systems integrate waste heat sources to reduce operating costs and can scale modularly to match site capacity and sludge type. SDS technology handles municipal sewage sludge, industrial biosludge, oil and paint sludges, metal sludges for valuable-metal recovery, and paper sludge for cellulose fiber reuse. The closed-loop design means no emissions, no waste stream, and filtered condensate that can be returned to the treatment process. SDS is a member of bifa (Bavarian Institute for Applied Environmental Research), VDI, DWA, and the Phospho-Plattform, and its systems are designed to support phosphorus recovery from sewage sludge — aligning with Germany's upcoming phosphorus reclamation mandates.
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