The Effect of Amino Acids and Molar Peroxide Ratio on the Oxidation of 2,4 Dinitroanisole in an Ultraviolet Light Emitting Diode/H₂O₂ Advanced Oxidation Process

Author

Jeffry P. Hart

Date of Award

3-2021

Document Type

Thesis

Degree Name

Master of Science

Department

Department of Systems Engineering and Management

First Advisor

Willie F. Harper, Jr., PhD

Abstract

2,4 Dinitroanisole (DNAN) is an organic insensitive munition that is a likely candidate to replace trinitrotoluene (TNT) for a variety of purposes. Advanced Oxidation Processes (AOPs) are a promising method that have the potential to reduce a variety of persistent chemicals, however, the performance of these systems may be degraded by co-contaminants in the influent. In this contribution, DNAN, with casamino acids as a co-contaminant, was oxidized with Ultraviolet (UV) Light Emitting Diodes (LEDs) with hydrogen peroxide (H₂O₂) in an AOP in a laboratory. The UV/ H₂O₂ AOP was capable of degrading DNAN with casamino acids present, from a relative concentration (C/C0) of 1.0 0.63 over a molar peroxide ratio (H₂O₂: DNAN) range of 50:1 to 1000:1. An increase in the degradation rate of DNAN was observed with increased concentrations of H₂O₂. The pseudo first order rate constant for DNAN removal was typically greatest at 250:1 and 500:1. The presence of casamino acids had minimal effects on the effectiveness of the AOP, possibly due to light screening.

AFIT Designator

AFIT-ENV-MS-21-M-232

DTIC Accession Number

AD1136767

Recommended Citation

Hart, Jeffry P., "The Effect of Amino Acids and Molar Peroxide Ratio on the Oxidation of 2,4 Dinitroanisole in an Ultraviolet Light Emitting Diode/H₂O₂ Advanced Oxidation Process" (2021). Theses and Dissertations. 4947.
https://scholar.afit.edu/etd/4947