| Description |
vi, 111 pages : illustrations ; 24 cm |
| Series |
Lecture notes in earth sciences ; 81 |
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Lecture notes in earth sciences ; 81
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| Contents |
1. Abstract -- 2. Introduction. 2.1. Early diagenesis. 2.2. Behaviour of heavy metals and nutrients during early diagenesis. 2.3. Methods used in the study of early diagenesis -- 3. Methods and materials. 3.1. Location of the study area. 3.2. Sampling. 3.3. Analysis -- 4. Results and discussion. 4.1. Early diagenesis in the sediments of the Neckar River and its tributaries. 4.2. Distribution of heavy metals between sediments and porewater. 4.3. Mobilization of heavy metals. 4.4. Early diagenesis and heavy metal mobility in other freshwater sediments: a comparison. 4.5. Comparison of the early diagenesis in freshwater and marine sediments |
| Summary |
Aquatic sediments are important sinks of inorganic and organic pollutants as well as of nutrients in highly industrialized and densely populated areas. As many aquatic organisms live in or on the sediments, polluted sediments provide a pathway for the chemicals to food-chain organisms, and finally to man. Sediment-water interactions play a fundamental role in biogeochemical cycling of the elements. One of the most important reactions is the mineralization of organic matter during early diagenesis, which not only leads to anoxic conditions connected with a recycling of nitrate, phosphate, and ammonia but changes the chemical bonding of heavy metals into more soluble species. Our study carried out on freshwater sediments enabled us to show whether heavy metals and nutrients are released into the overlying water under changes in physicochemical conditions. The information is important to water management and sediment dredging activities in harbour areas |
| Bibliography |
Includes bibliographical references (pages [103]-111) |
| Notes |
Online version of the print title |
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Mode of access: World Wide Web |
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System requirements: Internet connectivity, World Wide Web browser, and Adobe Acrobat reader |
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Print version record |
| Subject |
Contaminated sediments -- Analysis.
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Diagenesis.
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Heavy metals -- Environmental aspects.
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Hydraulic engineering.
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Sedimentology.
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| Author |
Müller, German.
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| LC no. |
98041486 |
| ISBN |
3540650229 (softcover : alk. paper) |
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