Effluent recirculation enables near-complete oxidation of organics during supercritical water oxidation at mild conditions: A proof of principle

Abstract

h i g h l i g h t s Supercritical water oxidation (SCWO) was performed at mild conditions. Effluent recirculation was applied to improve organic oxidation efficiency. The oxidizing capacity and oxygen consumption were favorable for recirculation. A single and small setup at constant conditions oxidized different organics.

Safety Management and Accident-Control Strategy for a Commercial-Scale Plant for Supercritical Water Oxidation of Sludge

“…The SCWO reaction of many types of organic wastewater has been investigated, such as pharmaceutical wastewater [34], coal chemical wastewater [35] and dyeing wastewater [36]. No matter what kind of wastewater, the chemical oxygen demand (COD), chemical composition and pH value of the wastewater should be detected and measured at first, which can significantly affect the operation of an SCWO system.…”