Removal of Insensitive Munitions Compounds from Water Solutions Via Chitin- And Chitosan-Based Materials
Gude, Veera Gnaneswar
Truax, Dennis D.
Magbanua, Benjamin S., Jr.
Date of Degree
Original embargo terms
MSU Only Indefinitely
Graduate Thesis - Open Access
Master of Science
James Worth Bagley College of Engineering
Department of Civil and Environmental Engineering
This research presents a critical evaluation of chitin- and chitosan-based materials as innovative treatment alternatives for water contaminated with insensitive munitions (IMs) compounds. Specifically, chitin, chitosan, amineunctionalized chitin (AFC) were evaluated for adsorptive removal of these compounds. Cellulose and cellulose triacetate were evaluated for adsorptive performance for comparison. Chitosan-graphene oxide (CSGO) composite membranes were evaluated for removal via adsorption and filtration and compared against nanofiltration and reverse osmosis membranes in the current market. Insensitive munitions evaluated include nitrotriazolone (NTO), nitroguanidine (NQ), and 2,4-dinitroanisole (DNAN); 2,4,6-trinitrotoluene (TNT) was also studied as a traditional munition for comparison. AFC is an effective adsorbent for NTO, DNAN, and TNT. Cellulose triacetate was the only commercially available biopolymer adsorbent effective at removing munitions compounds from solution; only DNAN and TNT were removed. CSGO membranes effectively removed NTO, DNAN, and TNT, but removal performance degraded with time. Overall, this research shows that the materials studied are viable options for removing IM and traditional munitions from water.
Gurtowski, Luke Alexander, "Removal of Insensitive Munitions Compounds from Water Solutions Via Chitin- And Chitosan-Based Materials" (2017). Theses and Dissertations MSU. 3790.