Investigation of In Situ Hydrothermal Oxidative Destruction of NDMA

摘要

Five screening experiments on the aqueous phase oxidation of NDMA were performed using Dickson-type flexible gold bag rocking autoclaves. The overall objective of this project was to determine if hydrous pyrolysis/oxidation (HPO) is a feasible method for destroying NDMA under acceptable time and temperature conditions. A suitable analytical method for the measurement of NDMA in small water samples by combining an extraction/concentration step of solid phase extraction (SPE) with GC-MS analysis using selected ion monitoring (SIM). For these five experiments all of the surrogate recoveries fell in a range of 90 to 106% recovery and therefore no data was rejected due to poor extraction efficiency.