Low-temperature sludge dryers offer a sustainable approach to sludge management by efficiently reducing moisture content below 100°C. This technology provides substantial benefits including enhanced energy efficiency, reduced environmental footprint through lower emissions, improved dried product quality for beneficial reuse, and increased operational safety. Dried sludge finds applications in agriculture, energy recovery, and construction. Ongoing advancements in hybrid designs and intelligent control systems continue to overcome operational challenges, positioning low-temperature drying as a critical solution for future circular economy initiatives and compliant waste valorization.