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Saturday, November 14, 2020 | History

1 edition of Modeling soil-water distribution of aromatic amines in water saturated soil systems found in the catalog.

Modeling soil-water distribution of aromatic amines in water saturated soil systems

Modeling soil-water distribution of aromatic amines in water saturated soil systems

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Published by U.S. Environmental Protection Agency, Ecosystems Research Division, National Exposure Research Laboratory in Athens, GA .
Written in English

    Subjects:
  • Aromatic amines -- Environmental aspects -- Mathematical models,
  • Groundwater -- Pollution -- Mathematical models

  • Edition Notes

    Other titlesModeling soil water distribution of aromatic amines in water saturated soil systems
    StatementLinda S. Lee ... [et al.]
    SeriesEnvironmental research brief
    ContributionsLee, Linda S, National Exposure Research Laboratory (U.S.). Ecosystems Research Division
    The Physical Object
    Pagination9 p. :
    ID Numbers
    Open LibraryOL16976172M

    A.U. Utom, U. Werban, C. Leven, C. Müller, P. Dietrich: Adaptive observation-based subsurface conceptual site modeling framework combining interdisciplinary. (closer to the surface), an increasing fraction of the water evaporates and moves through the soil as a vapor (cf. Marshall and Gurr ). This leaves the remaining soil water enriched in the migrating ions. This process of concentration can occur only above the water table, and the resulting concentration profile of an inert ion might. many different environmental compartments, including in sediment, soil, water, air, and tissue. Typically PHCs are present as mixtures of multiple individual PHCs each with different physical-chemical properties that determine their distribution between the different environmental compart-ments (e.g., water and sediment). The book contains 47 chapters, arranged in five thematic sections: Introduction to Mobile M-health Systems, Smart Mobile Applications for Health Professionals, Signal, Image, and Video Compression for M-health Applications, Emergency Health Care Systems and Services, Echography Systems and Services, and Remote and Home Monitoring.


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Modeling soil-water distribution of aromatic amines in water saturated soil systems Download PDF EPUB FB2

Modeling soil-water distribution of aromatic amines in water saturated soil systems. Athens, GA: U.S. Environmental Protection Agency, Ecosystems Research Division, National Exposure Research Laboratory, []. Modeling Competitive Cation Exchange of Aromatic Amines in Water-Saturated Soils Article in Environmental Science and Technology 35(13).

Modeling soil-water distribution of aromatic amines in water saturated soil systems. EPA//S/ Ecosystems Research Division, National Exposure Laboratory, Athens, GA (11) Electric Power Research Institute.

Estimating aqueous Release Concentrations of Multi-ring Aromatic Hydrocarbons from MGP Soils. @article{osti_, title = {Initial sorption of aromatic amines to surface soils}, author = {Lee, L S and Nyman, A K and Li, H and Nyman, M C and Jafvert, C}, abstractNote = {Sorption of aniline, {alpha}-naphthylamine, and benzidine to three silty clay loams was measured from CaCl{sub 2} electrolyte solutions in single and binary solute systems after a 1-d residence time.

REDUCING THE POTENTIAL FOR ENVIRONMENTAL CONTAMINATION BY PESTICIDES AND OTHER ORGANIC CHEMICALS. Modeling soil-water distribution of aromatic amines in water saturated soil systems.

EPA//S/ Lee, L.S., H. Li, and D. Schulze. The role of clay-catalyzed reactions with aromatic amines in whole soils. Fabrega et al. 31 and Li et al. 32 applied a speciation model for amines in soil−water mixtures that assumes that both K d ion and K d neut (our notation) are.

Invited Refereed Book Chapters. Jafvert, Chad T. and Janice Heath, "Reactions of Anionic Surfactants in Saturated Soils and Sediments: Precipitation and Micelle Formation," Chap Pagesin Manipulation of Groundwater Colloids for Environmental Restoration, Edited by John F.

McCarthy and Frank J. Wobber, Lewis Publishers, Ann Arbor, @article{osti_, title = {Sorption of phenol, p-nitrophenol, and aniline to dual-cation organobentonites from water}, author = {Zhu, L and Chen, B and Shen, X}, abstractNote = {A series of dual-cation organobentonites are synthesized by replacing the metal ions in bentonite with both long-chain alkyl quaternary ammonium cations, such as dodecyltrimethylammonium.

The long-term interactions of aromatic amines with soils are important in defining the fate and transport of these compounds in the environment. Abiotic loss of aniline from the aqueous phase to the soil phase occurs with an initial rapid loss due to reversible mass transfer processes, followed by a slow loss due to irreversible reactions.

A kinetic model describing these Cited by: 3. Fábrega-Duque, José R., Chad T. Jafvert, Hui Li, and Linda S. Lee, “Modeling Competitive Ca tion Exchange of Aromatic Amines in Water -Saturated Soils,” Envrionmenta Sl cei nce and Technool gy,Li, Hui, Linda S.

Lee, José R Fábrega -Duque, and Chad T. Jafvert, “Role of pH in Partitioning and Cation File Size: KB. Fortunately, however, the most potent carcinogens among the aromatic amines appear to possess certain structural identifying characteristics, such as: o one, two, or three conjugated aromatic ring systems, o an aromatic amino group substituted in the position para to the conjugated aromatic system; or o groups, such as methyl, methoxyl, or.

Octanol–water partition coefficient (Kow) is a very valuable parameter with numerous environmental applications, where it is used as a primary characterizing parameter since it represents a measure of the tendency of a compound to move from the aqueous phase into lipids.

Ràfols, in Liquid-Phase Extraction, Competitive sorption experiments. Experiments were carried out by batch technique at room temperature (25±1 °C) in 25 ml centrifuge tubes at a constant initial concentration of p-nitroaniline (80 mg/l) in the presence of varying concentrations of other organic acids or bases as ratios of sediment to solution for competitive experiments is 4 g to 20 ml.

Cited by: G.A. Raab, EPA/X, September Spatial Resolution of Ground-Water Contamination by Soil-Gas Measurement. H.B. Kerfoot and M.J. Miah, Chemometrics and Intelligent Laboratory Systems, 3(l-2), Soil-Gas Surveying Techniques, A New Way to Detect Volatile Organic Contaminants in the Subsurface.

Wershaw, R.L.,A new model for humic materials and their interactions with hydrophobic chemicals in soil-water or sediment-water systems: Journal of Contaminant Hydrology, v. 1, p. 29– Wershaw, R.L.,Membrane-micelle model for humus in soils and sediments and its relation to humification: U.S.

Geological Survey Water-Supply. Saturated and aromatic hydrocarbons: 80–86 g/L: 62– Bhattacharya et al. Expanded granular sludge bed (EGSB) reactor ( L) Laundry wastewater: Linear alkylbenze sulfonate (LAS) g TVS/L: Delforno et al. Anaerobic sludge blanket/continuous-flow ( L) Synthetic BTEX-contaminated waterCited by: The accumulation of polycyclic aromatic hydrocarbons (PAH) in soil, plants, and water may impart negative effects on ecosystem and human health.

We quantified the concentration and distribution of 41 PAH (n = 32), organic C, total N, and S (n = ) and investigated PAH sources using a chronosequence of floodplain soils under a natural. The length of time soil remained satiated at the and m depths was negatively correlated with relative elevation (in relation to the nearest depression edge).

Soil water increases for the to m depth were most often correlated with pre-rain soil water deficit, especially in the wet year of (13 of 14 events). Soils - Part 2: Physical Properties of Soil and Soil Water.

This lesson will help you understand the major components of the physical properties of soil. You will learn such terms as texture, aggregation, soil structure, bulk density, and porosity as it relates to soils.

Sorption of organic contaminants (phenol, p-nitrophenol, and naphthalene) to natural solids (soils and bentonite) with and without myristylpyridinium bromide (MPB) cationic surfactant was studied to provide novel insight to interactions of contaminants with the mineral-adsorbed surfactant.

Contaminant sorption coefficients with mineral-adsorbed surfactants, Kss, show a strong Cited by: Sorption of HOCs onto soils is dependent on the amount and type of the soil organic matter (SOM) in a given sorbent [47,67], the nature and composition of the soil mineral phase, the water/moisture content of particular soil(s) and the liquid medium that the soil in question is in contact with and that the HOCs are sorbing from onto the given Cited by: Effect of plants, soil water content and soil organic matter content, Plant Soil CrossRef Google Scholar Stefanson, R.

C, b, Soil denitrification in sealed soil-plant by: Modeling P rotocol for S ubsidence From the initial drainage in A.D. t he water table linearly decrease d until A.D. time in which the improvement in drainage due to the installation of pumps made it reach a value of 60 cm.

Z0 is kept at this level until A.D. when water table rises to 30 cm representing a combination of sugarcane. For volatile organics, headspace methods have been used to determine sorption coefficients in both soil‐air and soil‐water systems [56, 57].

Gas purge methods have been described for examining sorption‐desorption kinetics and interactions with dissolved humic substances [58, 59].Cited by: Soil org. matter (SOM) is often considered the dominant sorptive phase for org. contaminants and pesticides in soil-water systems. This is evidenced by the widespread use of org.-matter-normalized sorption coeffs.

(KOM) to predict soil-water distribution of pesticides, an approach that ignores the potential contribution of soil minerals to. emphasize the importance of soil water for agriculture Soil interaction with the hydrosphere The amount of water in soils is only a tiny fraction (% to %) of Earth’s total water supply (Figure ).

Such a small amount of soil water seems perilously small to supply all terrestrial life. Yet, this. Soil and Environmental Science Dictionary. curve courbe de rétention moisture-retention curve courbe de rétention caractéristique soil.

water characteristic courbe de rétention en eau moisture. (simple sugar) pâte de sol à saturation saturated soil paste pH du sol pH, soil pHc pHC phosphore organique organic phosphorus point de Author: E.G.

Gregorich, L. Turchenek, M.R. Carter, Denis A. Angers. Soil scientists often collaborate with colleagues from many fields, and a basic working knowledge of the vocabularies of those fields improves understanding and enhances the flow of information.

This dictionary brings together the conventional vocabulary of soil science with that of many overlapping disciplines."--BOOK JACKET. SOIL and WATER. CHEMISTRY An Integrative Approach. SOIL and WATER CHEMISTRY An Integrative Approach.

MICHAEL E. ESSINGTON. CRC PR E S S Boca Raton London New York Washington, D.C. This edition published in the Taylor & Francis e-Library, To purchase your own copy of this or any of Taylor & Francis or Routledges collection of thousands of 3/5(2).

Water Mobility Soil Dispersion-Saturated Hydraulic Conductivity I hope that this book gives the reader a quantitative understanding of the principles involved in environmental soil-water chemistry dealing with modeling soil nutrient availability to Mineral solubility in soil-water systems varies and depends on conditions.

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Written in clear language, the up-to-date text gives readers access to new ideas and developments in the current literature. Synchronized juvenile enchytraeids were exposed to a dilution series of the polluted study soil in Lufa soil under different combinations of air temperature (20 °C and 25 °C) and soil moisture content (corresponding with 50% and 30% of the soil water holding capacity -WHC-) over three generations standardized on physiological time.

Campbell's soil culture manual: a complete guide to scientific agriculture as adapted to the semi-arid regions: the proper fitting of the soil for the conservation and control of moisture and the development of soil fertility ; how moisture moves in the soil by capillary attraction, percolation and evaporation ; the relation of water and.

Statement of Issues and Justification. Agricultural production can result in the contamination of soil, air, and water resources. Identifying and quantifying the physical, chemical, and biological processes that control the behavior of organic chemicals in the environment is imperative for improving management of agrochemicals, minimizing contamination of natural resources, and.

Direct methods of measuring soil water content Soil samples of known weight or volume are collected and the water content is expressed in either g. The present book describes the role of colloidal systems in environmental protection in areas like drinking water, wastewater treatment, heavy metal remediation, treatment of contaminated soils, abatement of pesticide contamination in food and soil.

Final Report: Center for Ecological Health Research EPA Grant Number: R Center: EERC - Center for Ecological Health Research (Cal Davis) Center Director: Rolston, Dennis E. A74 Standard Specification for Cast Iron Soil Pipe and Fittings. A90/A90M Standard Test Method for Weight [Mass] of Coating on Iron and Steel Articles with Zinc or Zinc-Alloy Coatings.

A99 Standard Specification for Ferromanganese. A Standard Specification for Ferrosilicon. A Standard Specification for Ferrochromium. Maps of soil types (usually called Soil Series) are based largely on the following observable or measurable criteria (Palmer and Lewis, ): • texture of the whole soil profile; • soil water.

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1.For information about this book, contact: Waveland Press, Inc. IL Ro Suite Soil Vapor Monitoring—Introduction Methods of Soil Gas Monitoring Soil Water Sampling—Introduction Suction Lysimeters Installation of Suction Lysimeters Phyto-screening in a month. (For water systems that collect fewer than.Soil air ~soil temp erature ~soil water ~soil moisture constants ~classification of soil water.

Soil water movement. Soil colloids ~organic ~inorganic. Ion exchange~soil organic ma tter ~pH ~nutrient availability. Soil classification -soil taxonomy ~soils of Tamil Nadu and India. Soil survey ~ types and methods of soil survey ~soil mapping.