Prelude | p. 1 |
Disinfection Byproducts | p. 7 |
Objectives | p. 7 |
Nomenclature | p. 7 |
Trihalomethanes | p. 8 |
Haloacetic Acids | p. 9 |
Monohaloacetic Acids | p. 9 |
Dihaloacetic Acids | p. 10 |
Trihaloacetic Acids | p. 10 |
Inorganic Disinfection Byproducts | p. 11 |
Other Halogenated Disinfection Byproducts | p. 12 |
Trichloroacetaldehyde and Its Brominated Analogues | p. 12 |
Haloacetonitriles | p. 14 |
Halopropanones | p. 15 |
Trichloronitromethane and Its Brominated Analogues | p. 17 |
Cyanogen Chloride and Its Brominated Analogue | p. 17 |
MX | p. 18 |
Total Organic Halide | p. 18 |
Ozonation DBPs | p. 19 |
Aldehydes | p. 19 |
Ketoacids | p. 19 |
Carboxylic Acids | p. 20 |
N-Nitrosodimethylamine (NDMA) | p. 20 |
Nomenclature | p. 21 |
Formation of Disinfection Byproducts | p. 23 |
Objectives | p. 23 |
Nomenclature | p. 23 |
Formation Mechanisms | p. 24 |
Trihalomethanes | p. 24 |
Haloacetic Acids | p. 24 |
Other Halogenated DBPs | p. 25 |
Ozonation Byproducts | p. 25 |
Factors Affecting DBP Formation | p. 26 |
Effects of NOM | p. 26 |
Effects of Chlorine Dose | p. 27 |
Effect of Chlorination Time | p. 30 |
Effects of pH | p. 30 |
Effects of Bromide | p. 32 |
Evaluation of DBP Formation in Treated Water | p. 34 |
Formation Potential Test | p. 35 |
Simulated Distribution System Test | p. 36 |
Uniform Formation Conditions Test | p. 36 |
Stability of Disinfection Byproducts | p. 39 |
Objectives | p. 39 |
Nomenclature | p. 39 |
Hydrolysis | p. 39 |
Oxidation | p. 43 |
Dehalogenation | p. 44 |
Biological Degradation and Dehalogenation | p. 47 |
Effects of Treatment Process on Disinfection Byproducts | p. 51 |
Objectives | p. 51 |
Nomenclature | p. 51 |
Preoxidation | p. 52 |
Coagulation | p. 54 |
Carbon Adsorption | p. 56 |
Biofiltration | p. 59 |
Membrane filtration | p. 64 |
Summary | p. 66 |
Disinfection Byproduct Control | p. 69 |
Objectives | p. 69 |
Nomenclature | p. 69 |
Enhanced Coagulation | p. 70 |
Enhanced Coagulation Requirements | p. 70 |
Practices of Enhanced Coagulation | p. 73 |
Coagulants | p. 73 |
pH Preadjustment | p. 75 |
Impacts of Enhanced Coagulation | p. 75 |
Carbon Adsorption | p. 77 |
DBP Precursor Removal | p. 77 |
DBP Removal | p. 78 |
Point-of-Use Carbon Devices | p. 80 |
Changing the Chlorination Point | p. 81 |
Alternative Disinfectants | p. 82 |
Chloramines | p. 82 |
Ozone | p. 82 |
Chlorine Dioxide | p. 83 |
Ultraviolet | p. 83 |
Combinations of Disinfectants | p. 84 |
Membrane Technologies | p. 85 |
Pretreatment | p. 85 |
Post-Treatment | p. 85 |
Waste Disposal | p. 86 |
Costs of DBP Control Technologies | p. 87 |
Inorganic Disinfection Byproducts | p. 91 |
Objectives | p. 91 |
Nomenclature | p. 91 |
Bromate | p. 91 |
Formation of Bromate | p. 91 |
Formation Mechanisms | p. 91 |
Effect of Bromide Concentration | p. 93 |
Ozone Dosage | p. 94 |
Effect of pH | p. 94 |
Effect of Natural Organic Matter | p. 96 |
Effect of Ammonia | p. 96 |
Effect of H2O2 Addition | p. 97 |
Bromate Removal and Control | p. 98 |
Chlorite | p. 98 |
Formation of Chlorite | p. 98 |
Chlorite Removal and Control | p. 100 |
Chlorate | p. 101 |
Formation of Chlorate | p. 101 |
Chlorate Removal and Control | p. 102 |
Disinfection Byproduct Regulations | p. 105 |
Objectives | p. 105 |
Nomenclature | p. 105 |
Total Trihalomethane Rule | p. 106 |
Information Collection Rule | p. 106 |
Disinfectants and Disinfection Byproducts Rule | p. 107 |
Stage 2 Disinfectants and Disinfection Byproducts Rule | p. 110 |
Other DBP Related Regulations | p. 111 |
Total Coliform Rule | p. 111 |
Surface Water Treatment Rule | p. 111 |
Interim Enhanced Surface Water Treatment Rule | p. 111 |
Filter Backwash Recycling Rule | p. 112 |
Long Term 1 Enhanced Surface Water Treatment Rule | p. 112 |
Ground Water Rule | p. 112 |
Long Term 2 Enhanced Surface Water Treatment Rule | p. 113 |
Technical Guidance Documents | p. 113 |
Disinfection Byproduct Analysis and Data Evaluation | p. 115 |
Objectives | p. 115 |
Nomenclature | p. 115 |
Approved Methods for DBPs | p. 116 |
Trihalomethanes (THMs) | p. 116 |
Haloacetic Acids | p. 117 |
Bromate and Chlorite | p. 119 |
Haloacetonitriles, Chloral Hydrate, Chloropicrin, and Chloropropanones | p. 119 |
Cyanogen Chloride | p. 119 |
Aldehydes | p. 120 |
Ketoacids | p. 120 |
MX | p. 121 |
NDMA | p. 121 |
Typical Analytical Problems | p. 121 |
Bromide Contamination | p. 121 |
Chloroform Contamination | p. 122 |
Incomplete Methylation | p. 122 |
Sample Degradation | p. 123 |
Analytical Artifacts | p. 123 |
Evaluating the Integrity of DBP Data | p. 124 |
Typical Data Pattern | p. 124 |
The V-Trap Rule | p. 126 |
Disinfection Byproduct Information Resources | p. 131 |
Objectives | p. 131 |
Nomenclature | p. 131 |
Books | p. 131 |
Web Sites | p. 134 |
Journals | p. 139 |
Conferences | p. 140 |
Video Tapes | p. 141 |
Overview of Drinking Water Treatment Processes | p. 143 |
Objectives | p. 143 |
Nomenclature | p. 143 |
Introduction | p. 143 |
Coagulation | p. 144 |
Flocculation | p. 146 |
Sedimentation | p. 146 |
Filtration | p. 147 |
Disinfection | p. 148 |
Preoxidation | p. 151 |
Carbon Adsorption | p. 152 |
Xie's Bar Theory: Water Coagulation | p. 153 |
Index | p. 155 |
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