Heavy metals : sources, toxicity and remediation techniques / Deepak Pathania, editor.

Format:

Book

Contributor:

Pathania, Deepak, editor.

Series:

Materials science and technologies series.

Materials Science and Technologies

Standardized Title:

Heavy metals (2016)

Language:

English

Subjects (All):

Heavy metals--Environmental aspects.

Heavy metals.

Physical Description:

1 online resource (322 p.)

Place of Publication:

New York : Nova Publishers, 2016.

Language Note:

English

Summary:

This book is concerned with heavy metals, which are considered to be the most hazardous pollutants present in the water system. Heavy metals are extensively studied and their effects on human health are reviewed here. Although several adverse health effects of heavy metals are known for a long time, exposure to heavy metals continues and is even increasing in some parts of the world. This books deals with the source of heavy metals in the environment and possible mitigation measures for metal recovery. The technology available for the detection of heavy metals and the latest remediation techniques are also discussed in detail. In this way, the book also addresses general background to polymers and their composite materials for removal of specific toxic heavy metals from waste water. The different adsorption isotherm models and adsorption mechanism using biosorption methods are also described. The widespread applications of low-value agricultural products, ion-exchange, coagulation, precipitation, flocculation, ultra-filtration and electrochemical methods are mentioned. The book reviews the essential issues and will be of interest to academicians, research scholars and industries. It will be the precious resource for all undergraduate and postgraduate students at institutes and universities.

Contents:

HEAVY METALS SOURCES, TOXICITY AND REMEDIATION TECHNIQUES; HEAVY METALS SOURCES, TOXICITY AND REMEDIATION TECHNIQUES; Library of Congress Cataloging-in-Publication Data; CONTENTS; PREFACE; ACKNOWLEDGMENTS; Chapter 1: MERCURY: SOURCES, TOXICITY AND REMEDIATION; ABSTRACT; ABBREVIATIONS; 1. INTRODUCTION; 1.1. Mercury as a Global Contaminant; 1.2. Physicochemical Properties of Mercury; 2. SOURCES AND USES OF MERCURY; 2.1. Mining Sources; 2.2. Atmospheric Deposition; 2.3. Urban Sources; 2.4. Agricultural Sources; 2.5. Erosion Sources; 2.6. Combustion and Industrial Sources

3. METALLOMICS OF MERCURY3.1. Introduction to Metallomics; 3.2. Exposure Pathways of Mercury; 3.3. Tissue Distribution of Mercury; 3.4. The Role of Thiols; 3.5. Role of Selenium in the Metallomics of Mercury; 3.5.1. Formation of MeHg-Se Compounds; 3.5.2. Selenium-Aided Demethylation of MeHg; 3.5.3. Formation of Inorganic Hg-Se Compounds; 3.5.4. Redistribution of Inorganic Hg in the Presence of Se; 3.5.5. Selenium Inhibition of Methyl Radicals from MeHg; 3.5.6. Mercury-Induced Se Deficiency; 4. RECENT TECHNOLOGIES FOR ESTIMATION OF MERCURY; 4.1. Handling of Samples

4.2. Extraction from Solid Samples4.3. Estimation from Solid Samples; 4.3.1. Determination of Hg in Coal; 4.3.2. Extraction and Determination of Hg in Fish Tissues; 4.3.3. Determination of Ultra-Trace Amount Methyl-, Phenyl- and Inorganic Mercury in Human Hair and Fish Tissue; 4.4. Determination in Liquid Samples; 4.4.1. Mercury Speciation by Cold Vapor AAS; 4.4.2. Sensitive Mercury Speciation by Reversed-Phase Column High-PerformanceLiquid Chromatography with UV-Visible Detection for Sea Water; 4.4.3. Speciation Analysis of Mercury in Seawater by On-Line Pre-Concentration HPLC-ICP-MS

4.5. Determination in Gaseous Samples4.5.1. Simultaneous Removal of Hg0, SO2 and NO from Flue Gas UsingNaClO2 Solution; 4.5.2. Automated Monitoring of Gaseous Elemental Mercury (GEM) in Ambient Air; 4.5.3. Measurement of Atmospheric Mercury Species with Manual Sampling and Analysis Methods; 4.6. A Non-Instrumental Method; 5. REMEDIATION TECHNIQUES; 5.1. Soil Remediation; 5.1.1. Excavation and Ex-Situ Treatment; 5.1.1.1. Physical Separation; 5.1.1.2. Thermal Treatment; 5.1.1.3. Hydrometallurgical Treatments; 5.1.2. In-Situ Recovery

5.1.2.1. Soil Vapor Vacuum Extraction Coupled with Soil Heating5.1.2.2. Electro-Kinetic Separation; 5.1.2.3. Interceptor Systems; 5.1.2.4. Phytoremediation; 5.2. Surface and Ground Water Remediation; 5.2.1. In-Situ Treatments; 5.2.1.1. Permeable Reactive Barriers; 5.2.1.2. In-Situ Leaching and Extraction; 5.2.1.3. Passive Remediation - Wetlands; 5.3. Containment; 5.3.1. Pump-and-Treat; 5.3.2. Impermeable Barriers (Sealed Surfaces and Drainage); 5.3.3. Stabilization and Solidification; 5.3.4. In-Situ Capping; 5.4. Electro-Remediation of Mercury Polluted Soil: A Case Study; FUTURE PROSPECTIVES

REFERENCES

Notes:

Description based upon print version of record.

Includes bibliographical references at the end of each chapters and index.

Description based on print version record.

ISBN:

1-63484-766-0