
Environmental Chemistry
by Ibanez, Jorge G.; Hernandez-esparza, Margarita; Doria-serrano, Carmen; Fregoso-infante, Arturo; Singh, Mono Mohan-
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Summary
Table of Contents
Foreword | p. v |
Preface | p. vii |
Introductory Concepts | |
Introduction to Environmental Chemistry | p. 3 |
Chemistry of the Natural Processes in the Biosphere | p. 3 |
Chemistry Associated with Pollution Processes | p. 4 |
Chemistry Applied to the Analysis of Pollutants and Natural Compounds | p. 6 |
Chemistry Applied to the Treatment and Remediation of Pollution | p. 8 |
Green Chemistry | p. 8 |
Importance of Environmental Chemistry | p. 9 |
References and Further Reading | p. 10 |
Chemistry Fundamentals, Part A | p. 11 |
Chemical Equilibria | p. 11 |
Equilibrium Values and Calculations | p. 12 |
Exchange Reaction Equilibria: Systems of the Type ML[subscript n]/ML[subscript n-1]/...ML/M | p. 12 |
Acid-Base Reactions | p. 15 |
Acid-Base Characteristics of Common Chemical Species | p. 15 |
Buffers | p. 16 |
Acid/Base Character of Oxides | p. 21 |
Redox Processes | p. 23 |
Latimer Diagrams | p. 25 |
Frost Diagrams | p. 27 |
Nernst Equation | p. 27 |
Pourbaix Diagrams | p. 28 |
The pE Scale | p. 33 |
References and Further Reading | p. 41 |
Chemistry Fundamentals, Part B | p. 43 |
Complexes and Complex Formation | p. 43 |
Definition and Generalities | p. 43 |
Modification of Properties of Metal Ions | p. 43 |
Geometry of Metal Complexes | p. 46 |
Inner and Outer Sphere Complexes | p. 47 |
Mono and Polydentate Ligands. The HSAB Approach | p. 48 |
The Chelate Effect | p. 48 |
Reactions of Complexes | p. 50 |
Ligand-Exchange Reactions | p. 50 |
Electron-Exchange Reactions | p. 50 |
Chemical Kinetics | p. 51 |
Factors That Influence the Rate of a Mono Directional Reaction | p. 52 |
Dependence of the Rate of Reaction on Concentrations: The Rate Law | p. 53 |
The Rate Constant | p. 54 |
Integrated Rate Equations | p. 54 |
Zeroth-Order Reactions | p. 54 |
First-Order Reactions | p. 54 |
Second-Order Reactions | p. 55 |
Higher-Order Reactions | p. 55 |
Complex Reactions | p. 55 |
Consecutive Reactions | p. 56 |
Opposing (Reversible) Reactions | p. 56 |
Parallel Reactions | p. 57 |
The Steady-State Approximation | p. 57 |
Catalysis | p. 57 |
Kinetics of Metal-Complex Dissociation | p. 58 |
Photochemical Processes | p. 59 |
Photochemical Processes After the Absorption of Light | p. 59 |
Beer's Law | p. 60 |
Homogeneous and Heterogeneous Processes | p. 61 |
Radiochemistry | p. 61 |
Decay Kinetics | p. 62 |
Units of Radiation | p. 63 |
Detection Devices for Ionizing Radiations and Protection From Radiation | p. 64 |
Geiger Counter or Ionization in Gas-Filled Tubes | p. 64 |
Scintillation Device | p. 64 |
Photographic Films | p. 64 |
Semiconductors | p. 64 |
Thermoluminescence | p. 64 |
References and Further Reading | p. 64 |
The Chemistry of Natural Environmental Processes | |
The Chemistry of Processes in the Atmosphere | p. 69 |
Air | p. 69 |
How Did the Earth's Atmosphere Form? | p. 70 |
Amounts of Constituents in the Atmosphere | p. 71 |
Tropospheric Chemistry | p. 73 |
Physical Principles of the Greenhouse Effect | p. 74 |
Stratospheric Chemistry | p. 75 |
Aerosols | p. 76 |
Related Experiments in the Companion Book | p. 76 |
Additional Related Experiments/Activities | p. 76 |
References and Further Reading | p. 77 |
The Chemistry of Processes in the Lithosphere | p. 78 |
The Lithosphere and its Components | p. 78 |
Structure of the Solid Earth | p. 78 |
Core | p. 78 |
Mantle | p. 78 |
Crust | p. 78 |
Classification of Rocks | p. 79 |
Igneous Rocks | p. 79 |
Sedimentary Rocks | p. 79 |
Metamorphic Rocks | p. 80 |
Rock-Forming Minerals | p. 80 |
Formation and Differentiation of Minerals and Ores | p. 80 |
Weathering | p. 81 |
Physical Weathering | p. 81 |
Chemical Weathering | p. 82 |
Dissolution and Precipitation of Solids | p. 85 |
Dissolution of Natural Oxides | p. 89 |
Stable and Metastable Solid Phases | p. 90 |
Biological Weathering | p. 92 |
Soil Characteristics | p. 92 |
Soil Taxonomy | p. 93 |
Humic Substances (HS) | p. 93 |
Decomposition of Organic Materials Adsorbed on Soil | p. 93 |
Related Experiments in the Companion Book | p. 93 |
Additional Related Experiments/Activities | p. 94 |
References and Further Reading | p. 94 |
The Chemistry of Processes in the Hydrosphere | p. 96 |
Natural Waters: Types and Composition | p. 96 |
Processes That Affect Water Composition | p. 96 |
Rainwater | p. 98 |
Surface Water | p. 99 |
Stream and River Water | p. 101 |
Lake Water | p. 103 |
Groundwater | p. 105 |
Seawater | p. 106 |
Brackish/Saline Water | p. 107 |
Interactions of Water with Air and Sediments; Effects on Aquatic Chemistry | p. 110 |
Gas Dissolution and Acidification of Natural Waters | p. 110 |
Henry's Law | p. 110 |
Dissolved Oxygen in Water | p. 111 |
Dissolution of CO[subscript 2] in Water | p. 113 |
Interactions between Water and Sediments/Soil | p. 114 |
Physicochemical Processes in Aquatic Systems | p. 115 |
Chemical Processes in Aquatic Systems | p. 115 |
Acid-Base Reactions | p. 116 |
Redox Reactions | p. 119 |
Complex Formation | p. 122 |
Speciation | p. 122 |
Colloids: Properties, Types, Sources, and Formation | p. 124 |
Photochemical Reactions | p. 126 |
Natural Removal of Species from Aqueous Systems by Chemical and Physical Processes | p. 128 |
Sorption onto Colloidal, Suspended, or Settled Sediments | p. 128 |
Ion Exchange in Sediments and in Aqueous Colloidal and Suspended Matter | p. 129 |
Precipitation Reactions and Co-precipitation | p. 131 |
Solidification and Deposition Processes Due to Evaporation | p. 131 |
Colloidal and Sediment Transport into Surface Water | p. 131 |
Volatilization of Organic and Inorganic Compounds | p. 132 |
Related Experiments in the Companion Book | p. 132 |
Additional Related Experiments/Activities | p. 135 |
References and Further Reading | p. 135 |
Natural Biochemical Processes and Organisms in the Biosphere | p. 137 |
Classification of Living Organisms | p. 137 |
Nutritional Classification of Organisms | p. 140 |
Basic Aspects of Ecology | p. 142 |
The Habitats of Life: Air, Land, and Water | p. 143 |
Atmosphere | p. 143 |
Land | p. 143 |
Water | p. 144 |
Trophic Levels | p. 145 |
Non-feeding Relations Among Species | p. 146 |
Sustainability of Ecosystems | p. 147 |
Biogeochemical Cycles | p. 148 |
Water Cycle | p. 148 |
Hydrogen Cycle | p. 148 |
Carbon Cycle | p. 149 |
Oxygen Cycle | p. 150 |
Nitrogen Cycle | p. 152 |
Fixation | p. 152 |
Ammonification | p. 153 |
Nitrification | p. 154 |
Nitrate Reduction and Denitrification | p. 154 |
Sulfur Cycle | p. 155 |
Sulfur Mineralization | p. 155 |
Oxidation of Sulfide and of Elemental Sulfur | p. 156 |
Dissimilatory Sulfate or Sulfur Reduction | p. 157 |
Assimilatory Sulfate Reduction or Sulfur Immobilization | p. 157 |
Phosphorus Cycle | p. 157 |
Iron Cycle | p. 159 |
Interrelations Among Cycles | p. 160 |
Related Experiments in the Companion Book | p. 161 |
Additional Related Experiments/Activities | p. 162 |
References and Further Reading | p. 162 |
Effects, Treatment and Prevention of Pollution | |
Effects of Pollutants on the Chemistry of the Atmosphere, Hydrosphere, and Lithosphere | p. 167 |
Importance of the Manufacture and Use of Chemical Substances | p. 167 |
Sources of Chemical Substances as Contaminants and Pollutants | p. 167 |
Transport, Mobility, and Partition of Pollutants | p. 169 |
Air, Water, and Soil Pollution and Their Effects | p. 173 |
Effects of Pollutants on the Atmosphere | p. 173 |
Main Air Pollutants | p. 173 |
Combustion Processes as the Main Air Pollution Source | p. 175 |
The Greenhouse Effect | p. 176 |
Smog Formation | p. 176 |
Stratospheric Ozone Destruction or the Ozone Hole | p. 177 |
Acid Rain | p. 178 |
Indoor Pollution | p. 179 |
Effects of Pollutants on the Hydrosphere | p. 180 |
Oxygen-Demanding Materials | p. 180 |
Nutrients | p. 182 |
Pathogenic Organisms | p. 183 |
Suspended Solids | p. 183 |
Oil and Grease Spills | p. 184 |
Metallic and Metalloid Compounds | p. 185 |
Radionuclides | p. 185 |
Detergents (Surfactants) and Nutrient Enrichment | p. 185 |
Salts | p. 186 |
Heat | p. 186 |
Other Contributions | p. 187 |
Groundwater Pollution | p. 187 |
Surface Waters | p. 187 |
Effects of Pollutants on the Lithosphere | p. 187 |
Transformation of Pollutants in Soils | p. 187 |
Transport, Mobility, and Partitioning of Pollutants in Soils | p. 188 |
Agriculture and the Chemistry of Soils | p. 188 |
Metals and Mining Processes | p. 189 |
Other Wastes and Pollutants in Soil | p. 190 |
Related Experiments in the Companion Book | p. 190 |
Additional Related Experiments/Activities | p. 191 |
References and Further Reading | p. 196 |
Effects of Pollutants on the Biosphere: Biodegradability, Toxicity, and Risks | p. 198 |
Types of Pollutants According to Their Capacity to Undergo Biotransformation | p. 198 |
Biodegradable Substances and Biodegradation Processes | p. 198 |
Biotic Transformation Reactions | p. 199 |
Recalcitrance and Recalcitrant Compounds | p. 204 |
Hazardous and Non-hazardous Substances or Pollutants | p. 207 |
Classification of Hazardous Substances | p. 208 |
Toxicity and Related Definitions | p. 208 |
Factors That Affect the Toxicity of Chemical Substances | p. 208 |
Human Health Risk Assessment | p. 220 |
Hazard Identification | p. 221 |
Dose-Response Assessment | p. 222 |
Non-carcinogenic Risk Assessment | p. 223 |
Cancer Risk Assessment | p. 224 |
Exposure Assessment | p. 226 |
Risk Characterization | p. 226 |
Risk Management | p. 227 |
Ecotoxicology | p. 228 |
Methods of Ecotoxicology | p. 229 |
Toxic Endpoints | p. 230 |
Bioassays | p. 230 |
Ecotoxicity Determination | p. 231 |
Short-Time Toxicity Tests | p. 231 |
Long-Term Toxicity Tests | p. 231 |
Bioconcentration, Bioaccumulation, and Biomagnification | p. 232 |
Biomarkers and Bioindicators | p. 233 |
In Situ Monitoring | p. 233 |
Ecological Risk Assessment | p. 234 |
Characterization of the Baseline Ecology and Identification of Potential Receptor Populations | p. 234 |
Ecological Toxicity Assessment | p. 234 |
Evaluation of Potential Exposures | p. 234 |
Risk Characterization | p. 234 |
Risk Assessment | p. 234 |
Related Experiments in the Companion Book | p. 235 |
Additional Related Experiments/Activities | p. 236 |
References and Further Reading | p. 236 |
Physicochemical and Physical Treatment of Pollutants and Wastes | p. 237 |
Physicochemical Processes | p. 237 |
Redox Processes | p. 237 |
Chemical Oxidation and Incineration | p. 238 |
Advanced Oxidation Processes (AOP) | p. 249 |
Chemical Reduction | p. 253 |
Precipitation/Immobilization, Acid-Base/Hydrolysis, and Ion-Exchange Processes | p. 255 |
Chemical Precipitation/Metal Immobilization | p. 255 |
Acid-Base/Hydrolysis Processes | p. 256 |
Ion Exchange | p. 256 |
Complexation Processes | p. 258 |
Gaseous Pollutants | p. 258 |
Aqueous Pollutants | p. 258 |
Soil Pollutants | p. 259 |
Electrochemical Processes | p. 260 |
Direct and Indirect Processes | p. 260 |
Electrochemical Processes Based on Ion Exchange | p. 261 |
Electrochemical Treatment of Gases | p. 261 |
Electrokinetic Treatment of Soils | p. 262 |
Electrochemical Production of Water Disinfectants | p. 263 |
Hybrid Processes that Involve an Electrochemical Step for the Treatment of Aqueous Wastes | p. 263 |
Other Chemical Processes | p. 264 |
Selective Dissolution in CO[subscript 2] | p. 264 |
Extraction with Other Liquefied Gases | p. 264 |
Extraction with Liquid Solvents (Liquid-Liquid Extraction) | p. 264 |
Catalytic Hydrodechlorination | p. 264 |
Physical Processes | p. 264 |
Adsorption Processes | p. 264 |
Incorporation of Pollutants into Solid Materials | p. 265 |
Clay Incorporation | p. 265 |
Supersoaker Materials | p. 265 |
Vitrification | p. 265 |
Radiation-Based Processes | p. 265 |
Microwave Energy | p. 265 |
Electron Beams | p. 266 |
Ultrasound | p. 266 |
Photochemical Methods | p. 266 |
Methods Based on Magnetic Fields | p. 266 |
Magnetic Treatment | p. 266 |
Magnetic Particles | p. 266 |
Filtration Methods | p. 267 |
Evaporation | p. 268 |
Air/Steam Stripping | p. 268 |
Combined Treatments | p. 268 |
Related Experiments in the Companion Book | p. 269 |
Additional Related Experiments/Activities | p. 272 |
References and Further Reading | p. 272 |
Biological Treatment of Pollutants and Wastes | p. 276 |
Removal of Pollutants from Wastewater | p. 276 |
Preliminary Treatment | p. 276 |
Primary Treatment | p. 276 |
Secondary Treatment | p. 277 |
Aerobic Processes | p. 277 |
Anaerobic Treatment of Wastewater | p. 281 |
Biological Nutrient Removal | p. 283 |
Tertiary Treatment | p. 287 |
Chemical and Physical Disinfection | p. 288 |
Sludge Treatment Options | p. 288 |
Anaerobic Digestion of Sludge | p. 289 |
Composting | p. 289 |
Pasteurization and Drying | p. 289 |
Lime Stabilization | p. 289 |
Wastewater Reuse | p. 290 |
Biological Treatment of Soil and Groundwater | p. 290 |
In Situ Bioremediation | p. 291 |
Treatment of Excavated Soils | p. 292 |
Composting | p. 292 |
Slurry Reactors | p. 292 |
Treatment Strategies for Aquifers | p. 292 |
Physical Containment | p. 292 |
In Situ Biorestoration | p. 292 |
Above-Ground Bioreactors (Pump-and-Treat Technology) | p. 293 |
Marine Oil Spills | p. 293 |
Biological Treatment of Volatile Compounds | p. 294 |
Related Experiments in the Companion Book | p. 295 |
Additional Related Experiments/Activities | p. 295 |
References and Further Reading | p. 295 |
The Minimization and Prevention of Pollution; Green Chemistry | p. 296 |
Industrial Ecology | p. 296 |
Life-Cycle Assessment | p. 296 |
Green Chemistry | p. 297 |
Prevent Waste Production | p. 297 |
Design Effective, Non-toxic Products | p. 298 |
Design Good Syntheses | p. 298 |
Use Alternative Feedstock/ Starting Materials | p. 299 |
Minimize Waste Using Catalytic Reactions | p. 302 |
Avoid Temporary Modifications | p. 304 |
Maximize the Use of Starting Materials | p. 305 |
Minimize the Use of Auxiliary Chemicals | p. 307 |
Ionic Liquids (ILs) | p. 307 |
Fluorous Compounds and Solvents | p. 312 |
Supercritical Fluids | p. 313 |
Solventless Reactions | p. 314 |
Aqueous Systems | p. 315 |
Biosolvents | p. 316 |
Energy Requirements | p. 316 |
Microwave Radiation | p. 317 |
Green Photochemistry | p. 317 |
Design Benign Products | p. 318 |
Synthetic Biodegradable Polymers | p. 318 |
Starch-Based Biodegradable Plastics | p. 319 |
Optimize Monitoring and Control | p. 319 |
Minimize the Potential for Accidents | p. 320 |
Related Experiments in the Companion Book | p. 320 |
Additional Related Experiments/Activities | p. 320 |
References and Further Reading | p. 322 |
Index | p. 325 |
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