Phytoremediation: A Strategy to Clean up Environment

by HC Lakshman

ISBN: 9789386949196
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Imprint : Daya Publishing House
Year : 2018
Price : Rs. 4495.00
Biblio : x+90p., tabls., figs., ind., 25 cm

Author Profile

Dr. H.C. Lakshman obtained his M.Sc., in 1977, from Bangalore University, Bangalore, Karnataka, Ph.D. in Botany, during 1996, from Karnatak University, Dharwad, Karnataka, India. Presently he is working as a senior Professor at P.G. Department of Studies in Botany, Karnatak University, Dharwad, Karnataka since 2004 to till date. He served as a Chairman, P.G. Department of Studies in Botany, K. U. Dharwad during 2009-2011. Dr. Lakshman successfully guided 29 students for Ph.D. and M.Phil. degree. He has to his credit 18 Books, 356 research articles published in various national and international journals of repute. Ratna V. Airsang completed M.Sc. in 1992 from Karnatak University, Dharwad, Karnataka. Later she did her M.Phil. in 2009 from Periyar University, Salem, Tamil Nadu. She is working as Assistant Professor at J.S.S. College, Vidyagiri, Dharwad. She has more than 21 years of teaching experience, presently working for her doctoral programme under the able guidance of Dr. H.C. Lakshman, Senior Professor at P.G. Department of Studies in Botany, Karnatak University Dharwad under FDP XI Plan (UGC).

About The Book

Phytoremediation is described as a natural process carried out by plants and trees in the cleaning up and stabilization of contaminated soils, sediments and ground water or it is described as the use of vegetation for in situ treatment of contaminated soils, sediments and water. Plants have shown the capacity to withstand relatively high concentration of organic chemicals without toxic effects and they can absorb and convert chemicals quickly to less toxic metabolites. Currently, conventional remediation methods of Heavy Metals (HM) contaminated soils are expensive and environmentally destructive. Scientists all over have been in search of some innovative, eco-friendly and low cost alternative technologies. One of them is the phytoremediation, which include the use of plants to clean and cure the environment and plants have been known for their property to absorb, accumulate and detoxify the impurities present in the soil, water and air through various physical, chemical and biological processes. Phytoremediation, a fast-emerging new technology for removal of toxic HMs, is cost-effective, non-intrusive and aesthetically pleasing. It exploits the ability of selected plants to remediate pollutants from contaminated sites. This book includes chapters with the valuable information about curing of soil problems (cleansing tool) in various contaminated sites by plants, recent biological treatment technologies, role of rhizosphere and microbes, role of AM fungi, Enzymes used by plants to detoxify organic compounds, Advantages, Disadvantages and limitations of Phytoremediation, Natural plant resources for Phytoremediation, Reforestation and Plant Disposal Considerations. This textbook provides sufficient basic information to environmental scientists, academicians, researchers, post graduates, graduates and who are working in the area of phytoremediation.

Table of Contents

Preface v Foreword vii 1. Phytoremediation 1 1.1 Introduction 1.2 Sorption and Biosorption 2. Mechanism of metals uptake by plants 7 2.1 Phytoextraction 2.2 Rhizofiltration 2.3 Phytostabilization 2.4 Phytovolatilization 2.5 Phytodegradation / phytotransformation 3. Plants as tool for Phytoremediation 15 3.1 Introduction 3.2 Phytoremediation as a cleansing tool 3.3 Phytoremediation in curing soil problems with crops 3.5 Grasses as Potential phytoremediators 3.6 Phytoremediation from Saline tolerant Plants 3.7 List of Plants used in Phytoremediation 4. Biological Treatment Technologies 25 4.1 Plants for Bioremediation of Contaminated Land 4.2 Plant Selection activities for Phytoremediation 5. Phytoremediation of Environmental pollutants 30 5.1 Radioactively contaminated sites 5.2 Phytoremediation of explosives 5.3 Phytoremediation of Water Pollutants 5.4 Phytoremediation of Mining Sites 5.5 Phytoremediation in Coastal Water 5.6 Phytoremediation of Soil Pollutants 6. Role of Rhizosphere and Microbes in Phytormediation 39 6.1 Rhizobia and Azotobacter 6.2 Nickel - Resistant bacteria 6.3 Arbuscular mycorrhizae and saline conditions 6.4 Mycorrhizae and heavy metals 6.5 AM Fungi and Forest Nursery Seedlings 6.6 Role of AM Fungi in waste land development 7. Sustainable Management 56 7.1 Natural plant resources for Phytoremediation 7.2 Phytoremediation and Reforestation 8. Enzymes used by plants to detoxify organic compounds 58 9. Phytoremediation outlook 61 9.1 Advantages, Disadvantages and Limitations 9.2 Plant Disposal Considerations, Conclusion and Summary References 65 Index 83