Column transport studies of 3-nitro-1,2,4-triazol-5-one (NTO) in soils.
作者： Noah Mark , Jennifer Arthur , Katerina Dontsova , Mark Brusseau , Susan Taylor
DOI: 10.1016/J.CHEMOSPHERE.2016.12.067
关键词:
摘要: Development of the new, insensitive, energetic compound, NTO (3-nitro-1,2,4-triazol-5-one), creates need for data on NTO's fate and transport to predict its behavior in environment potential groundwater contamination. To measure soils, we conducted miscible-displacement experiments under steady state interrupted flow conditions using eight soils having varying physical geochemical properties. The breakthrough curve (BTC) were analyzed temporal moment analysis simulated HYDRUS-1D determine parameters better understand mechanisms sorption transformation. Parameters determined from study compared results obtained batch same examined relation soil Column linear adsorption coefficients (Kd) low correlated well (P = 0.000049) with measurements studies. transformation rate constants increased recovery decreased increase organic carbon (OC) content. Autoclaved had slower rates greater recoveries indicating that microorganisms play a role In addition, time higher OC. Monod-type kinetics was implemented simulate observed time. We think this phenomenon is due bacterial growth. Results indicate very range but natural attenuation through that, depending OC content hydraulic residence time, could result complete removal NTO.
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