| Preface |
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xi | |
| Author |
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xiii | |
| 1 The Water Nexus and Desalination |
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1 | (18) |
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1.1 Introduction: The Twenty-First Century Context for the Pursuit of Sustainable Water Resources |
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1 | (5) |
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1.2 Increasing Water Supply |
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6 | (1) |
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1.3 Exploiting the Vast Salty Water Resources: Desalination |
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7 | (4) |
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1.3.1 Lessons from Desalination Literature and Industrial Practice |
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9 | (2) |
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1.4 Improved Environmental Impacts on the Ecosystem |
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11 | (1) |
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1.5 Prospects of Solar Energy in Desalination |
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11 | (1) |
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12 | (1) |
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13 | (6) |
| 2 Membrane Distillation Desalination Principles and Configurations |
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19 | (14) |
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2.1 Membrane Distillation: Fast Growing Research Topic for Desalination |
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19 | (2) |
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2.2 Membrane Distillation Principles |
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21 | (1) |
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2.3 Direct Contact Membrane Distillation (DCMD) |
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22 | (3) |
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2.4 Vacuum Membrane Distillation (VMD) |
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25 | (1) |
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2.5 Air Gap Membrane Distillation (AGMD) |
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26 | (1) |
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2.6 Sweeping Gas Membrane Distillation (SGMD) |
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26 | (1) |
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27 | (1) |
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27 | (6) |
| 3 Membranes for Membrane Distillation in Desalination |
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33 | (16) |
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33 | (2) |
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3.2 Membrane Hydrophobicity |
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35 | (1) |
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3.2.1 Definition of Hydrophobicity in Membranes for Membrane Distillation |
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35 | (1) |
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3.3 Materials for Hydrophobic Membranes |
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36 | (1) |
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37 | (2) |
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3.5 Hydrophobic Membrane Characterization |
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39 | (4) |
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40 | (1) |
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3.5.2 Liquid Entry Pressure |
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41 | (1) |
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3.5.3 Membrane Pore Size and Porosity |
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42 | (1) |
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42 | (1) |
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42 | (1) |
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3.5.6 Thermal Conductivity |
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42 | (1) |
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43 | (1) |
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43 | (6) |
| 4 Membrane Distillation Module Design |
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49 | (24) |
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49 | (5) |
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4.2 Module Geometric Considerations |
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54 | (10) |
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4.2.1 Rectangular Modules |
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59 | (1) |
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4.2.2 Cylindrical Modules |
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60 | (4) |
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4.3 Novel Module Configurations |
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64 | (1) |
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4.4 Fluid Dynamics and Heat Transfer Considerations: Qualitative Considerations |
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64 | (2) |
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4.5 Practical Considerations |
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66 | (1) |
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67 | (1) |
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67 | (6) |
| 5 Membrane Distillation Performance Analysis |
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73 | (28) |
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73 | (5) |
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5.2 Distillate Flux Performance |
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78 | (7) |
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5.2.1 Flat Sheet Membranes |
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78 | (6) |
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5.2.1.1 Effect of Membrane Properties: Material, Thickness, Pore Size, Pore Size Distribution |
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78 | (1) |
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5.2.1.2 Effect of Temperature |
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79 | (1) |
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5.2.1.3 Effect of Flowrates and Feed Recirculation |
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80 | (2) |
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5.2.1.4 Effect of Turbulence Promoters (Spacers) |
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82 | (1) |
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5.2.1.5 Effect of Flow Direction (Counter-Current vs Co-current) |
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83 | (1) |
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5.2.1.6 Effect of Feed Concentration |
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83 | (1) |
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5.2.2 Hollow Fiber (Capillary Membranes) |
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84 | (1) |
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5.2.3 Multistage MD Systems and Novel Module Design |
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85 | (1) |
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85 | (4) |
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89 | (1) |
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89 | (2) |
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5.6 Membrane Distillation System Optimization |
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91 | (1) |
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91 | (1) |
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91 | (10) |
| 6 Membrane Fouling and Scaling in Membrane Distillation |
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101 | (16) |
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101 | (6) |
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6.2 Flux and Flux Decline in Membrane Distillation |
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107 | (2) |
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6.3 Fouling and Scaling in Membrane Distillation |
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109 | (1) |
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6.4 Membrane Autopsy Techniques in Membrane Distillation |
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110 | (1) |
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6.5 Membrane Wetting and Distillate Quality Deterioration |
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110 | (1) |
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6.6 Fouling Mitigation Measure in Membrane Distillation |
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111 | (1) |
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6.7 Future Directions in Membrane Fouling Resistance Efforts |
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111 | (1) |
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112 | (1) |
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112 | (5) |
| 7 Membrane Improvement in Membrane Distillation |
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117 | (16) |
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117 | (2) |
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7.2 Membrane Material and Surface Modifications |
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119 | (3) |
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7.2.1 Enhancing Membrane Flux |
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119 | (1) |
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7.2.2 Enhanced Membrane Hydrophobicity and Wetting Resistance |
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120 | (1) |
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7.2.3 Enhanced Mechanical Properties |
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121 | (1) |
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7.3 New and Novel Membrane Distillation Membranes |
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122 | (1) |
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7.4 Omniphobic and Amphiphobic Membranes |
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122 | (3) |
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7.5 Bioinspired MD Membranes |
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125 | (1) |
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7.6 Novel Janus Membranes |
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125 | (1) |
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125 | (1) |
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126 | (7) |
| 8 Modeling of Membrane Distillation |
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133 | (24) |
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133 | (3) |
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8.2 Types of Models for Membrane Distillation |
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136 | (4) |
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140 | (6) |
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8.4 Models for Various Membrane Distillation Configurations |
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146 | (1) |
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146 | (1) |
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8.6 Main Challenges in Membrane Distillation Modeling |
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146 | (1) |
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8.7 Emergence of Computational Fluid Dynamics in Membrane Distillation Modeling |
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147 | (1) |
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147 | (1) |
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148 | (9) |
| 9 Low-Carbon Energy Sources for Membrane Distillation Processes for Desalination |
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157 | (16) |
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157 | (4) |
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9.1.1 Low-Grade Waste Heat |
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158 | (1) |
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9.1.2 Solar Energy Harvesting for Desalination |
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158 | (1) |
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9.1.3 Low-Grade Waste and Solar Energy Recovery for Membrane Distillation Desalination |
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159 | (2) |
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9.2 Low-Grade Heat Sources and Utilization in Membrane Distillation |
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161 | (3) |
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9.3 Solar Energy Sources for Membrane Distillation |
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164 | (3) |
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9.4 Main Challenges in Tapping Low-Grade Heat in Membrane Distillation |
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167 | (1) |
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9.5 Main Challenges in Tapping Solar Energy in Membrane Distillation |
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167 | (1) |
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168 | (1) |
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169 | (4) |
| 10 Conclusions and Future Horizons for Membrane Distillation Desalination |
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173 | (6) |
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173 | (1) |
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10.2 Outstanding Issues That Hinder Commercial Deployment of Membrane Distillation for Desalination |
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173 | (1) |
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10.3 Cost Competitivity Issues |
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174 | (1) |
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10.4 Sustainability Issues of Membranes for Membrane Distillation |
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175 | (1) |
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10.5 Target Applications of Membrane Distillation for Desalination |
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175 | (1) |
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10.6 Emergence of Computational Fluid Dynamics in Membrane Distillation Modeling |
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176 | (1) |
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176 | (3) |
| Index |
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179 | |