2,4-dinitroanisole (DNAN) is an insensitive high explosive present in wastewaters generated from munitions manufacturing and training ranges. This study investigated the use of light emitting diodes (LEDs) in the UV/H2O2 advanced oxidation of DNAN. The pseudo first-order reaction rate constants for DNAN oxidation depended on the molar peroxide ratio and were between 0.017 min-1 and 0.026 min-1. Hydroxyl radical scavenging was strongly implicated by the experimental results. High mass spectrophotometric chromatograms showed the presence of several byproducts, including three with ecotoxicity that is greater than that of DNAN. Overall, these findings demonstrate that UV LED/H2O2 has potential to be implemented for degradation of DNAN in munitions wastewater.

Advanced oxidation of 2,4-dinitroanisole with ultraviolet light emitting diodes and hydrogen peroxide

ACS Spring 2022

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.