Author URLs
Document Type
Article
Publication Date
12-2018
Subject: LCSH
Oxidation, Biomineralization
Disciplines
Civil Engineering
Abstract
Insensitive Munition (IM) formulations contain 3-nitro-1,2,4-trizole-5-one (NTO), an energetic compound with the highest aqueous solubility (16 g L−1) among all IM explosives, including 2,4-dinitroanisole (DNAN) and 1-nitroguanidine (NQ); as a result wastewater streams from IM processing facilities can be highly contaminated and potentially toxic. The removal of energetic compounds from wastewater streams prior to their discharge in the environment is imperative, and new technology must be developed to efficiently treat high levels of NTO and other IM compounds in these streams. In this study, the treatment of NTO wastewater by a UV/H2O2 oxidation process under acidic conditions (pH = 3.0 ± 0.1) and a hydrogen peroxide concentration of at least 1500 mg L−1 resulted in successful removal of the energetic compound. The organic carbon from the NTO ring was completely converted to inorganic carbon (CO2), as confirmed through TOC measurements and GC–MS analysis on the reactor headspace. Nitrate and ammonium ions were the major nitrogen by-products, as indicated by mass spectrometry. The results obtained in this work demonstrate that the UV/H2O2 oxidation process can effectively mineralize high concentrations of NTO in wastewater streams leading to recovery of valuable nutrients that can be used for supporting algal biomass growth for biofuel/biogas generation.
DOI
10.1016/j.cej.2018.07.216
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 International License.
Repository Citation
Terracciano, Amalia; Christodoulatos, Christos; Koutsospyros, Agamemnon; Zheng, Zhaoyu; Su, Tsan-Liang; Smolinski, Benjamin; Arienti, Per; and Meng, Xiaoguang, "Degradation of 3-Nitro-1, 2, 4-Trizole-5-One (NTO) in Wastewater with UV/H2O2 Oxidation" (2018). Civil Engineering Faculty Publications. 43.
https://digitalcommons.newhaven.edu/civilengineering-facpubs/43
Publisher Citation
Terracciano, Amalia, Christos Christodoulatos, Agamemnon Koutsospyros, Zhaoyu Zheng, Tsan-Liang Su, Benjamin Smolinski, Per Arienti, and Xiaoguang Meng. "Degradation of 3-nitro-1, 2, 4-trizole-5-one (NTO) in wastewater with UV/H2O2 oxidation." Chemical Engineering Journal 354 (2018): 481-491.
Comments
This is the authors' accepted version of the article published in Chemical Engineering Journal . The published version can be accessed at https://doi.org/10.1016/j.cej.2018.07.216 .