Traditional sludge disposal methods pose environmental concerns and are economically expensive due to high moisture content. Dewatering is an important step to address these concerns. Conventional dewatering technologies include thermal drying and mechanical compression of sludge. Recently, dewatering with supercritical CO₂ has started gaining attention as a potential low-cost alternative to these conventional technologies. While many published studies on supercritical CO₂ dewatering are usually in a small reactor volume (~ 0.1 L), sludge dewatering in a relatively large reactor volume (~ 1 L) is demonstrated here as a feasible alternative to existing methods. Influence of equilibrium/ sCO₂ residence time and wet-sludge loading rate on the dewatering performance was determined from three-staged experiments. Within the first stage of dewatering, 40-60% dewatering was noticed. Preliminary techno-economic analysis showed a 5-50% reduction in sludge dewatering cost with supercritical CO₂ in comparison to thermal drying.