Irreversible adsorption of naphthalene and tetrachlorobiphenyl to Lula and surrogate sediments
Article Abstract:
The desorption irreversibility of naphthalenes and tetrachlorobiphenyl have no significant effects on the solution phase concentration of the two compounds because the process is not facilitated through a diffusion-limited transport. The diffusion-limited process, a mechanism cited as the major cause of low-level residual desorption, is exhibited only by surrogate materials which manifest homogenous and nonporous characteristics during organic composition.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1997
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Development of a surrogate sediment to study the mechanisms responsible for adsorption/desorption hysteresis
Article Abstract:
A surrogate sediment is developed and evaluated to study the mechanisms involved in adsorption/desorption of contaminants. Verification of the surrogate sediment revealed that both it and the natural sediment displayed similar desorption behavior. It was also observed that the surrogate exhibited adsorption of contaminants through a hydrophobic interaction in the same magnitude as a natural sediment for two different hydrophobic organic contaminants.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1996
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Reaction of naphthalene and its derivatives with hydroxyl radicals in the gs phase
Article Abstract:
The presence of pollutants such as polycyclic aromatic hydrocarbons (PAHs) and the byproducts from the reaction of naphthalene with hydroxyl radicals were assessed in a survey of the Canadian atmosphere. Controlled tests were conducted inside a 9.3 cubic meter smog chamber using photolysis of alkyl nitrites to produce the hydroxyl radical (.OH). Results indicate that naphthalene can produce mutagenic nitro derivatives through reactions with OH.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1997
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