Format:
Online-Ressource (XVIII, 515p. 65 illus., 24 illus. in color, digital)
ISBN:
9789400719149
Series Statement:
Environmental Pollution 20
Content:
Heavy-metal contamination is one of the world's major environmental problems, posing significant risks to agro-ecosystems. Conventional technologies employed for heavy-metal remediation have often been expensive and disruptive. This book provides comprehensive, state-of-the-art coverage of the natural, sustainable alternatives that use a wide range of biological materials in the removal/detoxification of heavy metals, consequently leading to the improvement of crops in these soils. Novel, environmentally friendly and inexpensive solutions are presented based on a sound understanding of metal c
Note:
Includes bibliographical references and index
,
Biomanagement of Metal-Contaminated Soils; Preface; Contents; Contributors; Chapter 1: Heavy Metal Pollution: Source, Impact, and Remedies; 1.1 Introduction; 1.2 Sources of Heavy Metals; 1.2.1 Natural Sources; 1.2.2 Anthropogenic Sources; 1.2.3 Activities Generating Heavy Metals; 1.3 Nature of Heavy Metal Pollution; 1.3.1 Heavy Metals and Air Pollution; 1.3.2 Water Pollution; 1.3.3 Soil Pollution; 1.4 Impacts of Heavy Metals; 1.4.1 Impact on the Environment; 1.4.2 Heavy Metal Toxicity; 1.4.3 Health Hazards; 1.5 Abatement of Heavy Metals Pollution; 1.5.1 Physicochemical Methods
,
1.5.2 Biochemical Methods1.5.2.1 Heavy Metals and Microorganisms; 1.5.2.2 Biosorption and Floatation; 1.5.2.3 Biotransformation; 1.5.2.4 Pollution Monitoring Biosensors; 1.5.2.5 Bioremediation; 1.5.3 Phytoremediation; 1.6 Genetic Engineering: The Way Forward; 1.7 Conclusion; References; Chapter 2: Metal-Plant Interactions: Toxicity and Tolerance; 2.1 Introduction; 2.2 Plant Structure; 2.3 Metal Uptake and Transport; 2.3.1 Metal Bioavailability; 2.3.2 Root Uptake; 2.3.3 Foliar Uptake; 2.4 Metal Phytomtoxicity; 2.4.1 Visible Symptoms; 2.4.2 Physiological Changes
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2.4.2.1 Inhibition of Germination2.4.2.2 Decreased Growth; 2.4.2.3 Membrane Damage; 2.5 Inhibition of Physiological Processes; 2.5.1 Oxidative Damage in Plants; 2.5.2 Photosynthesis; 2.5.3 Water Relations; 2.5.4 Nutrient Deficiency; 2.6 Metal Essentiality and Toxicity; 2.7 Toxicity Sequence; 2.8 Metal Tolerance Mechanisms; 2.8.1 Metal Accumulation; 2.8.2 Metal Detoxification; 2.8.3 Antioxidant Response; 2.9 Enhancing Metal Tolerance; 2.9.1 Chelators; 2.9.2 Phytohormones; 2.9.3 Importance of Microorganisms in Metal Removal; 2.10 Conclusion; References
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Chapter 3: Bioremediation: New Approaches and Trends3.1 Introduction; 3.2 Remediation Technologies; 3.2.1 Bioremediation; 3.2.1.1 Ex-Situ Bioremediation; 3.2.1.2 In-Situ Bioremediation; 3.3 Phytoremediation; 3.3.1 General Advantages of Phytoremediation; 3.3.2 General Limitations of Phytoremediation; 3.4 Phytoremediation Strategies; 3.4.1 Phytoextraction; 3.4.2 Rhizofiltration; 3.4.3 Phytostabilization; 3.4.4 Phytodegradation; 3.4.5 Rhizodegradation; 3.4.6 Phytovolatilization; 3.5 Environmental Factors Affecting Phytoremediation; 3.5.1 Soil Types and Organic Matter Contents
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3.5.2 Soil Water/Moisture3.5.3 Temperature; 3.5.4 Light; 3.5.5 Weathering Process; 3.6 Techniques Used to Enhance Phytoremediation Process; 3.6.1 Chelator-Induced Phytoextraction; 3.6.2 Plant Growth Regulators; 3.6.3 Plant Growth-Promoting Rhizobacteria; 3.6.3.1 Remediation of Heavy Metals by PGPR; 3.6.3.2 Remediation of Organic Contaminants by PGPR; 3.7 Breakthroughs in Phytoremediation: Novel Transgenic Approaches; 3.7.1 Metallothioneins, Phytochelatins, and Metal Chelators; 3.7.2 Metal Transporters; 3.7.3 Alteration of Metabolic Pathways; 3.7.4 Alteration of Oxidative Stress Mechanisms
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3.7.5 Alteration in Roots
Additional Edition:
ISBN 9789400719132
Additional Edition:
Buchausg. u.d.T. Biomanagement of metal-contaminated soils Dordrecht [u.a.] : Springer, 2011 ISBN 9789400719132
Language:
English
Subjects:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science
Keywords:
Bodenverschmutzung
;
Metall
;
Bodensanierung
;
Biologischer Abbau
;
Biologisches Verfahren
;
Bodenverschmutzung
;
Metall
;
Bodensanierung
;
Biologischer Abbau
;
Biologisches Verfahren
;
Aufsatzsammlung
DOI:
10.1007/978-94-007-1914-9
URL:
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