Ebook: Transfer Processes in Cohesive Sediment Systems
- Tags: Freshwater & Marine Ecology
- Year: 1985
- Publisher: Springer US
- Edition: 1
- Language: English
- pdf
In the transfer of chemical species through the aquatic environment the association with fine sediment particles is often of crucial importance. The n~ture, permanence and kinetics of this association is, in many cases, unknown yet it is central to any effort concerned with predicting the pathways of pollutant transfer and the fluxes along them. It is often unclear to precisely what surface, if any, a pollutant is attached. The transfer of species between surfaces and solution may be chemically or biochemically controlled. These processes may take place within a host framework which has a time and space dependent structure. The natural straining of this framework resulting from physical and chemical processes moves porewater and the dissolved species in it. Thus, to adequately predict the natural transfer of species within a cohesive sediment system the physical, biochemical and chemical processes must be dynamically coupled. This informal colloquium examined topics relevant to the associ ation of pollutant and sediment. These included the mineral particle surfaces and the surrounding ionic associations, methods of describing the particles and the physical, chemical, biochemical and biological processes operating in association with fine sediment substrates. The physical processes of sediment transport were deliberately excluded.
Content:
Front Matter....Pages i-viii
A New Perspective of Several Approaches to Clay/Electrolyte Studies....Pages 1-16
The Heterogeneous Distribution of Anions and Water Around a Clay Surface with Special Reference to Estuarine Systems....Pages 17-29
Humic Substances and the Surface Properties of Iron Oxides in Freshwaters....Pages 31-46
Sample Pretreatment and Size Analysis of Poorly-Sorted Cohesive Sediments by Sieve and Electronic Particle Counter....Pages 47-74
Size Distributions of Suspended Material in the Surface Waters of an Estuary as Measured by Laser Fraunhofer Diffraction....Pages 75-85
Detecting Compositional Variations in Fine-Grained Sediments by Transmission Electron Microanalysis....Pages 87-108
Escape of Pore Fluid from Consolidating Sediment....Pages 109-125
The Influence of Pore-Water Chemistry on the Behaviour of Transuranic Elements in Marine Sediments....Pages 127-142
The Incorporation of Radionuclides into Estuarine Sediments....Pages 143-153
Distribution, Composition and Sources of Polycyclic Aromatic Hydrocarbons in Sediments of the River Tamar Catchment and Estuary, U.K.....Pages 155-170
Water Quality Aspects of Dumping Dredged Silt into a Lake....Pages 171-195
Autotrophic Iron-Oxidising Bacteria from the River Tamar....Pages 197-214
Nitrogen Cycling Bacteria and Dissolved Inorganic Nitrogen in Intertidal Estuarine Sediments....Pages 215-229
Back Matter....Pages 231-239
Content:
Front Matter....Pages i-viii
A New Perspective of Several Approaches to Clay/Electrolyte Studies....Pages 1-16
The Heterogeneous Distribution of Anions and Water Around a Clay Surface with Special Reference to Estuarine Systems....Pages 17-29
Humic Substances and the Surface Properties of Iron Oxides in Freshwaters....Pages 31-46
Sample Pretreatment and Size Analysis of Poorly-Sorted Cohesive Sediments by Sieve and Electronic Particle Counter....Pages 47-74
Size Distributions of Suspended Material in the Surface Waters of an Estuary as Measured by Laser Fraunhofer Diffraction....Pages 75-85
Detecting Compositional Variations in Fine-Grained Sediments by Transmission Electron Microanalysis....Pages 87-108
Escape of Pore Fluid from Consolidating Sediment....Pages 109-125
The Influence of Pore-Water Chemistry on the Behaviour of Transuranic Elements in Marine Sediments....Pages 127-142
The Incorporation of Radionuclides into Estuarine Sediments....Pages 143-153
Distribution, Composition and Sources of Polycyclic Aromatic Hydrocarbons in Sediments of the River Tamar Catchment and Estuary, U.K.....Pages 155-170
Water Quality Aspects of Dumping Dredged Silt into a Lake....Pages 171-195
Autotrophic Iron-Oxidising Bacteria from the River Tamar....Pages 197-214
Nitrogen Cycling Bacteria and Dissolved Inorganic Nitrogen in Intertidal Estuarine Sediments....Pages 215-229
Back Matter....Pages 231-239
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