Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Marvin D. Piwoni"'
Publikováno v:
Journal of Chromatographic Science. 47:40-43
U.S. EPA Method 8330 was evaluated and modified for the analysis of DNAN (2,4-dinitroanisole) and MNA (n-methyl-p-nitroaniline) by high-performance liquid chromatography in various aqueous media in the presence and absence of the 14 energetic compoun
Publikováno v:
Journal of Chromatographic Science. 42:470-473
The use of solid-phase extraction for the analysis of liquid media containing low microg/L levels of hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX), mononitroso-RDX (MNX), dinitroso-RDX (DNX), and trinitroso-RDX (TNX) is examined. Aqueous samples (100
Publikováno v:
Scopus-Elsevier
Autor:
Marvin D. Piwoni, Robert C. Borden
Publikováno v:
Journal of Contaminant Hydrology. 10:309-323
The dissolution and transport of trapped nonaqueous phase liquid hydrocarbon (oil) was examined in a laboratory column study using aquifer material from a site contaminated with aviation gasoline. Two mathematical models were compared for simulating
Autor:
Marvin D. Piwoni, Camilla Lieske, Anna M. Schotthoefer, Lucinda B. Johnson, Hunter J. Carrick, Thomas R. Raffel, Catherine M. Johnson, Neal T. Halstead, Jason R. Rohr, Val R. Beasley, Patrick K. Schoff, Jason T. Hoverman
Publikováno v:
Nature. 455(7217)
Declining amphibian populations have been reported in the past twenty years from locations all over the world. These events have been attributed variously — often without much evidence — to habitat loss, climate change and disease. Now a case stu
Publikováno v:
Chemosphere. 14:1057-1067
Sorption of 1,2,4-trichlorobenzene, o-chlorotoluene and dimethylphthalate to a series of subsurface samples collected with depth is reported. Desorption of sorbate from the sorbent matrix provides better precision than conventional solution phase con
Publikováno v:
Hazardous Waste and Hazardous Materials. 3:57-76
A compartmental screening model was developed to describe the movement of volatile and transformable organic chemicals in rapid-infiltration wastewater treatment systems. The first compartment describes losses of the chemical from the infiltration ba
Autor:
Pinaki Banerjee, Marvin D. Piwoni
Publikováno v:
Journal of Contaminant Hydrology. 4:163-179
Sorption isotherms for tetrachloroethene on low-carbon subsurface core samples were linear to equilibrium solution concentrations of 2 mg L−1. Concentrations above this value produced pronounced curvature in the sorption isotherms. Sorption of tetr
Publikováno v:
Hazardous Waste and Hazardous Materials. 3:43-55
A microcosm was constructed to study the behavior of organic pollutants during rapid infiltration of municipal wastewater into soil. The microcosm permitted a direct measure of the amount of volatilization and allowed calculation of the amount that d
Publikováno v:
Water Research. 20:935-937
The knowledge about sorption and biodegradation of trace organics in soils and sediments of low organic carbon content, such as ground water aquifers, is still meagre. In an attempt to develop a tool to study mechanisms of interactions between low-mo