ABSTRACT
Supercritical water oxidation (SCWO) treatment of tributyl phosphate (TBP) has been implemented on a batch reactor in a sand bath, and experiments were investigated at a reaction pressure of 23~29 MPa, reaction temperature of 400~490°C, oxidation coefficient (OC) of 1.0~3.0, and residence time of 1~21 min. The experimental results indicate that reaction pressure does not have an obvious influence on chemical oxygen demand (COD) removal efficiency, but OC, residence time, and reaction temperature have. Most of the TBP was degraded at 460°C, 25 MPa, OC of 3.0 within residence time of 10 min, which reached up to 99.32% of COD removal efficiency. The study proves that the SCWO method has an excellent degradation effect on TBP and can be used as a potential choice.
