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Photocatalytic mechanisms of 2,4-dinitroanisole degradation in water deciphered by C and N dual-element isotope fractionation
APTIM Authors/Contributors Background/Objectives In surface water environments, photodegradation may be an important process for the natural attenuation of 2,4-dinitroanisole (DNAN). Understanding the photolysis and photocatalysis mechanisms of DNAN is difficult because the photosensitivity of nitro groups and the behavior of DNAN as a potential photosensitizer are unclear in aqueous solutions.…
https://www.aptim.com/media/publications/photocatalytic-mechanisms-of-24-dinitroanisole-degradation-in-water-deciphered-by-c-and-n-dual-element-isotope-fractionation/Flowing Well-Time-Domain Solution and Inverse Problem Revisited
APTIM Authors/Contributors Background/Objectives Time-domain analytical solution for groundwater flow to a fully penetrating flowing well is derived using the same substitution technique used to re-derive (Perina 2010) the Theis (1935) equation and the approximate solution by Mishra and Guyonnet (1992) is confirmed. The exponential integral-based flowing well function is a…
https://www.aptim.com/media/publications/flowing-well-time-domain-solution-and-inverse-problem-revisited/Biotransformation of the insensitive munition constituents 3-nitro-1,2,4-triazol-5-one (NTO) and 2,4-dinitroanisole (DNAN) by aerobic methane-oxidizing consortia and pure cultures
APTIM Authors/Contributors Mark Fuller, Senior Research Scientist, BDAG Rachael Rezes, Laboratory Scientist, BDAG Paul Hatzinger, Director, Biotechnology Development and Applications Group Paul Hedman, Analytical Laboratory Director, BDAG Background/Objectives We present the first report of biotransformation of 3-nitro-1,2,4-triazol-5-one (NTO) and 2,4-dinitroanisole (DNAN), replacements for the explosives 1,3,5-trinitro-1,3,5-triazine (RDX) and 2,4,6-trinitrotoluene (TNT),…
https://www.aptim.com/media/publications/biotransformation-of-the-insensitive-munition-constituents-3-nitro-124-triazol-5-one-nto-and-24-dinitroanisole-dnan-by-aerobic-methane-oxidizing-consortia-and-pure-cultures/Overview of statewide geophysical surveys for ecosystem restoration in Louisiana
APTIM Authors/Contributors Background/Objectives The System Wide Assessment and Monitoring Program (SWAMP) was implemented by the Louisiana Coastal Protection and Restoration Authority (CPRA) to develop an Adaptive Management Implementation Plan (AMIP). SWAMP ensures that a comprehensive network of coastal data collection/monitoring activities is in place to support the development and implementation…
https://www.aptim.com/media/publications/overview-of-statewide-geophysical-surveys-for-ecosystem-restoration-in-louisiana/