Humic Substances

1. Auflage 2005
ISBN: 978-1-59169-031-3
Verlag: Taylor & Francis

Buch, Englisch, 286 Seiten, Format (B × H): 161 mm x 236 mm, Gewicht: 513 g

Humic substances are everywhere; in plants, soils and water. These brown materials are the most versatile and widely dispersed organic compounds on Earth. Studies of humic substances sustain all current efforts to bioremediate and purify water, develop and support sustainable agriculture, decontaminate polluted soil, and combat soul desertification and erosion.

Taken from the 2004 Humic Substances Seminar VII held at Northeastern University, this selection of expert papers investigate the important functions of humic substances, focusing on water treatment and land preservation. Reflecting the work of an international host of scientists, this book describes how researchers from many disciplines are working to link humic substances structures to their many crucial functions in land and water conservation. Reporting on the latest analytical advances and information for understanding humic substances, this book will be of great interest to a wide range of readers from graduate students and professional biologists to soil scientists and engineers.

Autoren/Hrsg.

Ghabbour, E. A.

Ghabbour, Elham

Davies, Geoffrey

Fachgebiete

• Geowissenschaften Geologie Bodenkunde, Sedimentologie
• Technische Wissenschaften Technik Allgemein Technik: Allgemeines

Inhaltsverzeichnis

TABLE OF CONTENTS
Preface
Contributors
PART 1. SOURCES AND CHARACTERIZATION

1. Structural Characterization of Humic Substances from Waste Water
2. Asymmetrical Flow Field-Flow Fractionation of Humic Substances: Comparison of Polyacrylic Acids and Polystyrene Sulfonates as Molar Mass Standards
3. Estimation of the Black Carbon Content of the IHSS Leonardite-Humin
4. Source Identification and Characterization of Humic and Fulvic Acids Isolated from Oxfordian Argillite and Opalinus Clay

PART 2. SORPTION AND REACTIVITY

5. When Should Humic Substances be Treated as Dynamic Combinatorial Systems?
6. Mass Spectroscopic and Capillary Electrophoresis Studies of Humic Acids Interactions with Various Compounds and Xenobiotics
7. Photosensitized Generation of Singlet Oxygen and its Quenching by Humic Substances
8. Factors Affecting NOM Reactivity with Chlorine
9. Fluorescence and Energy Transfer Processes of Humic Substances and Related Model Compounds in Terbium Complexes

PART 3. METAL BINDING AND MOBILITY: DATA AND THEORY

10. Physico-Chemical Interpretation of Complexation/Binding Capacity or Effective Humate Ligand Concentration for An(III) and An(VI) Humate Complexation
11. Physical and Chemical Kinetics in Humic Dispersions
12. Measurement of Free Metal Ion in Equilibrium with Humic-Metal Complexes using an NMR Solvent Suppression Technique
13. Quantitative Analysis of Aluminum and Soil Fulvic Acid Complexes by Solution State Aluminum-27 Nuclear Magnetic Resonance Spectroscopy
14. Affinity of Soil and Lignitic Humic Acids for Cu(II) and Cd(II) Ions
15. Trace Metal Speciation Investigation of Soil Humic Acids Isolated from New England Soils: A Capillary Electrophoresis-Inductively Coupled Plasma-Mass Spectrometry (CE-ICP-MS) Study

PART 4. SOIL AGGREGATION

16. Soil Organic Matter and Aggregate Stability Affected by Tillage

Index

Über Autor(innen)

Elham Ghabbour is a Senior Scientist at Northeastern University, Boston. With two decades of research experience in physical /analytical chemistry, her major interest is understanding the macro- and microstructures of humic substances with solutes and metals as probes and catalysis by HSs.

Geoffrey Davies is Matthews Distinguished University Professor at Northeastern University. With research experience in physical inorganic chemistry, his major interests are the thermodynamics and kinetics of solute binding by humic substances and the development of models for HSs systems.