Metal Contaminated Aquatic Sediments

Inbunden, Engelska, 1996

AvHerbertE. Allen,USA) Allen, Herbert E. (University of Delaware, Newark,Herberte Allen,Herbert E. Allen

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Over the past decade the sediments of many rivers, lakes, and estuaries have been contaminated by inorganic and organic materials. Contaminants from sediments, under certain conditions, can be released into overlying waters. Thus, sediments may be an important source of contaminants to waters in which littoral and atmospheric contaminants have been reduced or eliminated.Often found in aquatic sediments, metals are exposed to many reactions, such as sorption and precipitation, and are greatly influenced by the redox conditions in the sediment. The reactions - usually over a period of time - reflect biotic processing as well as chemical transformations. This book describes these important processes.Metal Contaminated Aquatic Sediments outlines advances in environmental chemistry, effective new modeling techniques, applications for biological treatment, and cycling and transport of trace metals in sedimentary environments.Each chapter contains a detailed reference section that draws upon a stunning array of sources. The book includes many figures and tables that illustrate the process under discussion.Features

Produktinformation

Utgivningsdatum1996-01-01
Mått156 x 234 x 20 mm
Vikt810 g
FormatInbunden
SpråkEngelska
Antal sidor308
FörlagTaylor & Francis Inc
ISBN9781575040103

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Metals and Sediments: A Global Perspective, A. J. de GrootIntroductionDevelopment of Metal Research with Respect to PollutionThe History of Metal PollutionNormalization of Measurement ResultsMobilization of MetalsCivil Engineering and Metal ProblemsTerrestrial Consequences of Metal PollutionSpeciation and Quality CriteriaManagement of Dredged MaterialsReferencesMetal Cycling in Surface Sediments: Modeling the Interplay of Transport and Reaction, P. Van Cappellan and Y. WangIntroductionSurface SedimentsMathematical and Numerical TheoryA Model for Iron and Manganese in SedimentsSimulationsConclusionsReferencesTrace Metal Chemistry in Porewaters, G.W. Luther, IIIIntroductionExperimentalMineral Formation and Dissolution ProcessFactors Governing Metal Speciation in PorewatersConclusionReferencesMetal Adsorption onto and Desorption From Sediments, I. RatesIntroductionMultiple ReactionsData Calculation and PlottingResultsTheses Concerning Cationic Metal Adsorption and DesorptionSummaryReferencesMetal and Silicate Sorption and Subsequent Mineral Formation on Bacterial Surfaces: Subsurface Implications, S. Schultze-Lam, M. Urrutia-Mera, and T. BeveridgeIntroductionBacterial Structure and Cell Surface ChemistryBiofilmsMetal Ion Binding by Bacterial CellsMineral Formation on Bacterial CellsMetal Ion Transport and the Immobilization of Toxic Heavy MetalsReferencesDetermination of Redox Status in Sediments, T. Grundl IntroductionRedox Intensity in Ideal SystemsRedox Intensity in Disequilibrium SystemsRedox Intensity in Natural SystemsAlternate Techniques to Measure Redox IntensityRedox Capacity in Ideal SystemsRedox Capacity in Disequilibrium SystemsAlternate Methods of Describing Redox StatusSummaryReferencesChanges in Metal Speciation Following Alteration of Sediment