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xiii | |
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xvii | |
Preface |
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xix | |
Acknowledgement |
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xxi | |
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1 Landfill gas to energy: International status and prospects |
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1 | (26) |
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1 | (2) |
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1.2 Importance of landfill methane |
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3 | (1) |
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1.3 International landfill industry |
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3 | (5) |
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4 | (1) |
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1.3.2 East Asia and the Pacific |
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5 | (1) |
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1.3.3 South and West Asia |
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5 | (1) |
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5 | (1) |
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1.3.5 Latin America and the Caribbean |
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6 | (1) |
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6 | (1) |
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6 | (1) |
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6 | (1) |
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6 | (1) |
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7 | (1) |
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7 | (1) |
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7 | (1) |
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1.4 LFG Generation Mechanism |
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8 | (8) |
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1.4.1 Phases of LFG generation |
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11 | (1) |
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1.4.2 Landfill gas properties and hazards |
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12 | (1) |
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1.4.3 Factors affecting LFG generation |
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13 | (3) |
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1.5 Factors affecting LFG transport |
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16 | (2) |
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1.6 LFG characteristics and condensate |
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18 | (3) |
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1.7 Energy potential of LFG |
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21 | (2) |
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1.8 Benefits of LFG recovery |
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23 | (4) |
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26 | (1) |
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2 Planning and design of LFG recovery system |
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27 | (50) |
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2.1 Criteria for identifying suitability of landfill sites for LFG recovery |
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27 | (3) |
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2.1.1 Planning and design |
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29 | (1) |
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29 | (1) |
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30 | (1) |
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2.1.4 Restoration and aftercare |
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30 | (1) |
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2.2 Steps for conducting a landfill site assessment for LFG recovery |
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30 | (4) |
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2.2.1 Siting and design considerations |
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32 | (2) |
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2.3 LFG recovery from open dumps, controlled landfills, and sanitary landfills |
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34 | (8) |
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2.3.1 LFG recovery from open dumps |
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35 | (4) |
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2.3.2 Landfill bioreactor |
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39 | (2) |
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2.3.3 Sustainable landfills |
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41 | (1) |
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2.4 Conceptual design of LFG extraction system |
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42 | (4) |
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42 | (3) |
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45 | (1) |
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45 | (1) |
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45 | (1) |
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2.5 Horizontal and active LFG collection systems |
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46 | (1) |
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2.6 LFG recovery from active well collection system |
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46 | (6) |
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48 | (4) |
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2.7 LFG recovery from passive well collection system |
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52 | (1) |
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53 | (3) |
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2.9 Guidelines for conducting a pump test |
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56 | (1) |
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2.10 Standard testing methodology for LFG |
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56 | (1) |
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2.11 Initial testing setup/installation |
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56 | (7) |
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2.11.1 LFG extraction wells |
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57 | (1) |
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2.11.2 Pressure monitoring probes |
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57 | (3) |
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2.11.3 LFG treatment components |
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60 | (1) |
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2.11.4 Extraction well locations |
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60 | (2) |
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2.11.5 Pressure monitoring probes |
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62 | (1) |
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2.12 Flow testing procedures |
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63 | (2) |
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63 | (1) |
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63 | (2) |
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2.13 Short term dynamic test |
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65 | (1) |
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2.13.1 Blower/well configuration |
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65 | (1) |
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2.13.2 Infiltration monitoring |
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65 | (1) |
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2.13.3 Blower stabilization monitoring |
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65 | (1) |
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2.13.4 Pressure probe averaging |
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66 | (1) |
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66 | (1) |
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2.13.6 Depth influence calculation |
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66 | (1) |
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2.14 Long term dynamic test |
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66 | (1) |
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2.14.1 Total extracted LFG calculations |
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66 | (1) |
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2.14.2 Stabilized flow calculations |
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67 | (1) |
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2.14.3 Stabilized ROI calculations |
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67 | (1) |
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2.15 Orifice calibration procedure |
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67 | (1) |
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2.16 Active and passive condensate collection |
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68 | (3) |
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2.17 Landfill leachate treatment |
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71 | (6) |
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2.17.1 Physico-chemical treatment |
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74 | (1) |
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2.17.2 Biological treatment |
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75 | (1) |
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76 | (1) |
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77 | (44) |
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77 | (1) |
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3.2 Conceptualization of LFG model |
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78 | (1) |
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3.3 Benefits of LFG modeling |
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79 | (2) |
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3.3.1 Sizing LFG extraction system |
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79 | (1) |
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3.3.2 Projections of LFG emissions |
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80 | (1) |
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3.3.3 Monitoring and regulatory compliance |
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81 | (1) |
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3.4 Classification of LFG models |
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81 | (29) |
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82 | (1) |
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3.4.2 Constant rate model |
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83 | (1) |
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84 | (1) |
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3.4.4 Modified first-order model |
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84 | (1) |
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84 | (1) |
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85 | (1) |
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3.4.7 Scholl Canyon model |
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85 | (1) |
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3.4.8 Stoichiometric model |
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86 | (1) |
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87 | (1) |
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3.4.10 Palos Verdes model |
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88 | (2) |
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3.4.11 Sheldon Arleta model |
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90 | (1) |
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90 | (1) |
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91 | (1) |
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92 | (2) |
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94 | (1) |
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94 | (1) |
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3.4.17 Multi-phase model (Afvalzorg) |
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95 | (1) |
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96 | (1) |
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97 | (2) |
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3.4.20 EPER model Germany |
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99 | (1) |
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99 | (2) |
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101 | (1) |
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102 | (1) |
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103 | (1) |
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103 | (1) |
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104 | (1) |
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104 | (1) |
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105 | (1) |
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3.4.29 Central America model |
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105 | (1) |
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106 | (2) |
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108 | (1) |
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108 | (1) |
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3.4.33 Finite element model |
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109 | (1) |
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110 | (1) |
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3.5 Uncertainties in LFG model predictions |
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110 | (2) |
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3.6 Validation of LFG models |
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112 | (1) |
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3.7 Customization of LFG models |
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113 | (8) |
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3.7.1 Methane generation potential |
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114 | (1) |
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3.7.2 Degradable organic carbon |
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114 | (1) |
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115 | (1) |
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3.7.4 Methane correction factor |
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116 | (1) |
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3.7.5 Methane oxidation factor |
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116 | (1) |
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116 | (1) |
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3.7.7 Methane recovery rate |
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116 | (2) |
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118 | (3) |
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4 LFG monitoring and economic feasibility evaluation |
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121 | (32) |
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121 | (7) |
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4.1.1 Monitoring locations within the waste body |
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121 | (1) |
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4.1.2 Monitoring locations outside the waste body |
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121 | (1) |
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4.1.3 Pressure monitoring |
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122 | (1) |
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4.1.4 Monitoring frequency |
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122 | (1) |
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123 | (1) |
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4.1.6 Monitoring surface emissions |
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123 | (1) |
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4.1.7 Monitoring locations |
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124 | (1) |
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4.1.8 Parameters for analysis |
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124 | (1) |
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4.1.9 LFG within and outside the waste body |
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125 | (1) |
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4.1.20 Flare and utilization plants |
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126 | (2) |
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4.2 Test methods/protocols for LFG monitoring |
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128 | (4) |
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4.3 LFG migration and dynamics in borewell |
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132 | (2) |
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4.4 Standardized approach for LFG probe assessment |
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134 | (5) |
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4.4.1 Pre-assessment activities |
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135 | (1) |
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4.4.2 Initial monitoring probe condition assessment |
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135 | (1) |
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4.4.3 Gas monitoring assessment |
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136 | (1) |
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137 | (1) |
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4.4.5 Video borescope inspection |
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137 | (1) |
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4.4.6 Lithology evaluation |
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138 | (1) |
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4.5 Economic feasibility of LFG to Energy project |
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139 | (14) |
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4.5.1 Capital and O&M cost |
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143 | (3) |
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4.5.2 Energy sales revenue |
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146 | (2) |
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4.5.3 Economic feasibility |
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148 | (1) |
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4.5.4 Comparison of economically feasible options |
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149 | (1) |
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4.5.5 Project financing options |
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149 | (1) |
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4.5.6 Perspective of lenders/investors |
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149 | (2) |
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4.5.7 Financing approaches |
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151 | (1) |
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4.5.8 Evaluation of costs and benefits |
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151 | (1) |
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152 | (1) |
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152 | (1) |
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5 Landfill gas treatment technologies |
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153 | (56) |
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153 | (1) |
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5.2 Passive venting of LFG |
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153 | (2) |
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5.3 LFG combustion mechanism |
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155 | (2) |
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157 | (11) |
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5.4.1 Design of a flaring system |
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157 | (2) |
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5.4.2 Types of flaring system |
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159 | (4) |
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5.4.3 Description of LFG Flaring System |
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163 | (5) |
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5.4.4 Comparison of open and enclosed flares |
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168 | (1) |
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5.5 Case studies on LFG flaring systems |
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168 | (7) |
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5.5.1 Aleksandrovsk, Lugansk oblast, Ukraine |
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168 | (4) |
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5.5.2 Gorai landfill, Mumbai |
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172 | (2) |
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174 | (1) |
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5.6 LFG cleaning and upgradation |
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175 | (4) |
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5.7 Types of LFG treatment technologies |
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179 | (1) |
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5.8 Water scrubbing using DMT technology |
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179 | (3) |
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5.9 Water Scrubber using GmBH technology |
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182 | (1) |
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5.10 Water Scrubbing using ISET technology |
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182 | (1) |
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5.11 Physical Absorption using ISET technology |
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183 | (1) |
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5.12 Pressure Swing Adsorption using DMT technology |
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184 | (2) |
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5.13 Pressure Swing Adsorption using ISET technology |
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186 | (1) |
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5.14 Pressure Swing Adsorption using GmBH technology |
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187 | (1) |
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5.15 Chemical absorption of CO2 |
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188 | (1) |
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5.16 Chemical absorption using DMT technology |
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189 | (1) |
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5.17 Chemical absorption using ISET technology |
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190 | (1) |
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5.18 Chemical absorption using GmBH technology |
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191 | (1) |
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5.19 Membrane separation Natcogroup technology |
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192 | (2) |
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5.20 Membrane separation ISET technology |
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194 | (2) |
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5.21 Cryogenic separation |
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196 | (1) |
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5.22 Cryogenic condensation technology |
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197 | (1) |
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5.23 Mixed Refrigerant liquefaction technology |
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198 | (1) |
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199 | (2) |
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201 | (1) |
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202 | (1) |
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5.27 Comparison of different LFG treatment and upgrading technologies |
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203 | (2) |
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5.27.1 Impact on the environment |
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205 | (1) |
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205 | (1) |
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205 | (4) |
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206 | (3) |
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6 Landfill gas utilization technologies |
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209 | (36) |
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209 | (1) |
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6.2 LFG to energy technologies |
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210 | (1) |
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211 | (3) |
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6.4 Reciprocating internal-combustion engines |
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214 | (2) |
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6.5 Stirling cycle engines |
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216 | (2) |
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218 | (1) |
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219 | (2) |
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221 | (11) |
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221 | (1) |
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6.8.2 LFG to Compressed Natural Gas |
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221 | (2) |
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6.8.3 LFG to Liquefied Natural Gas |
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223 | (6) |
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6.8.4 Application of LFG as a vehicle fuel |
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229 | (2) |
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231 | (1) |
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6.9 Power generation using LFG-driven engines |
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232 | (6) |
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6.9.1 Design considerations |
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233 | (1) |
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6.9.2 LFG power potential |
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234 | (1) |
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6.9.3 Electricity generation using internal combustion engines |
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235 | (1) |
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6.9.4 Electricity generation using large turbines |
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236 | (1) |
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6.9.5 Electricity generation using microturbines |
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237 | (1) |
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6.9.6 Organic rankine cycle power plant |
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237 | (1) |
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238 | (4) |
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6.10.1 LFG utilization for boilers |
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238 | (2) |
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6.10.2 Design modifications |
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240 | (2) |
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242 | (3) |
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243 | (2) |
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7 Remediation of landfill sites |
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245 | (40) |
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245 | (1) |
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7.2 Planning for landfill remediation |
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245 | (1) |
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7.3 Multiple uses of landfills |
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246 | (1) |
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7.4 Recovery of landfills for higher land uses |
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247 | (1) |
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7.5 Procedure for remediation of landfill sites with low LFG potential |
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247 | (6) |
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7.5.1 Site characterization study |
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250 | (1) |
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7.5.2 Potential economic benefits |
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251 | (1) |
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7.5.3 Investigate Regulatory requirements |
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251 | (1) |
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7.5.4 Health and safety plan |
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252 | (1) |
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252 | (1) |
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7.6 Recovering land through waste mining and processing |
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253 | (6) |
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7.6.1 Landfill mining process |
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254 | (1) |
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7.6.2 Excavation and separation |
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254 | (1) |
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7.6.3 Processing for reclamation of recyclable material |
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255 | (1) |
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255 | (1) |
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7.6.5 Composition of waste |
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256 | (1) |
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7.6.6 Waste recovery efficiency |
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256 | (1) |
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7.6.7 Potential for energy recovery |
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257 | (1) |
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7.6.8 Benefits of landfill mining |
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257 | (1) |
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7.6.9 Limitations of landfill mining |
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257 | (1) |
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7.6.10 Economic aspects of landfill mining |
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258 | (1) |
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7.6.11 Cost and benefits of landfill mining |
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259 | (1) |
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7.7 Landfill mining case study |
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259 | (11) |
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7.7.1 Closing the circle project |
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261 | (1) |
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7.7.2 Characterisation of landfilled waste |
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261 | (2) |
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263 | (1) |
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7.7.4 Energy recuperation |
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264 | (2) |
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7.7.5 Recovery of natural land |
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266 | (2) |
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268 | (2) |
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7.8 Identification and control of landfill fires |
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270 | (8) |
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7.8.1 Characterization of landfill fire |
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272 | (1) |
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272 | (2) |
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7.8.3 Extinguishment methods |
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274 | (1) |
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7.8.4 Monitoring and management |
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275 | (1) |
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7.8.5 Fire prevention and control plan |
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276 | (2) |
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7.9 Operation and maintenance of landfill site |
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278 | (7) |
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7.9.1 LFG monitoring system |
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280 | (1) |
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7.9.2 LFG wellfield, conveyance, and condensate systems |
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281 | (1) |
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282 | (1) |
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283 | (1) |
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7.9.5 LFG energy recovery systems |
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284 | (1) |
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284 | (1) |
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8 Landfill gas case studies |
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285 | (32) |
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285 | (1) |
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8.2 Suzhou Qizi Mountain LFG to energy project, China |
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286 | (1) |
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8.3 Targu Mures, LFG to energy project, Romania |
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286 | (1) |
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8.4 Wingmoor, LFG to energy project, UK |
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287 | (1) |
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8.5 McKinney LFG to energy project, Texas, USA |
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287 | (1) |
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8.6 Lubna, Sosnowiec and Legajny LFG to energy project, Poland |
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288 | (1) |
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8.7 Palembang LFG to energy project, Indonesia |
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288 | (1) |
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8.8 Monterey Regional Waste Management District LFG to energy project, Marina, CA |
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288 | (1) |
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8.9 La Pradera LFG to energy project, Colombia |
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289 | (1) |
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8.10 Bandeirantes LFG to energy project, Brazil |
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289 | (1) |
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8.11 Dunsink LFG to energy project, North Dublin |
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290 | (1) |
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8.12 LFG to energy project, Niagara |
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290 | (1) |
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8.13 McRobies Gully LFG to energy project, Tasmania |
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290 | (1) |
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8.14 City of Bergen LFG to energy project, Norway |
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291 | (1) |
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8.15 NovaGerar LFG to energy project, Brazil |
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292 | (1) |
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8.16 Ethekwini LFG to energy project, Durban |
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293 | (1) |
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8.17 Horotiu, Hamilton LFG to energy project, New Zealand |
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293 | (1) |
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8.18 Arthurstown LFG to energy project, Ireland |
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294 | (1) |
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8.19 Ano Liossia LFG to energy project, Greece |
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294 | (1) |
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8.20 Puente Hills LFG to energy project, California |
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295 | (1) |
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8.21 Greater Sudbury and Halton Region, LFG to energy project, Canada |
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295 | (1) |
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8.22 Chelyabinsk LFG to energy project, Russia |
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296 | (1) |
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8.23 Torun LFG to energy project, Poland |
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296 | (1) |
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8.24 Kristianstad LFG to energy project, Sweden |
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297 | (1) |
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8.25 Belrose LFG to energy project, Australia |
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298 | (1) |
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8.26 Zambiza LFG to energy project, Ecuador |
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298 | (1) |
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8.27 Vlierzele LFG to energy project, Belgium |
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299 | (1) |
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8.28 Antioch LFG to energy project, Illinois |
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300 | (1) |
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8.29 Chengdu City LFG to energy project, China |
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301 | (1) |
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8.30 Gaoantun LFG to energy project, China |
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302 | (2) |
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8.31 Mentougou LFG to energy project, China |
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304 | (1) |
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8.32 Gorai LFG to energy project, India |
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305 | (1) |
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8.33 Khmelnitsky LFG to energy project, Ukraine |
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306 | (2) |
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8.34 Belo Horizonte LFG to energy project, Brazil |
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308 | (1) |
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8.35 Olavarria LFG to energy project, Argentina |
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309 | (1) |
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8.36 Okhla LFG to energy pilot project, India |
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309 | (5) |
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8.37 Pre-feasibility studies for LFG recovery in Columbia |
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314 | (1) |
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8.38 LFG energy project in Russian Federation |
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314 | (1) |
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8.39 Pre-feasibility studies in the Republic of Korea |
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314 | (1) |
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314 | (3) |
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315 | (2) |
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9 Challenges in utilization of LFG in developing countries |
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317 | (16) |
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317 | (1) |
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9.2 Barriers in LFG to energy project development |
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318 | (3) |
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9.2.1 Technological intricacies |
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319 | (1) |
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9.2.2 Economic limitations |
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320 | (1) |
|
9.2.3 Awareness of regulators and policy makers |
|
|
320 | (1) |
|
9.2.4 Power system interconnection |
|
|
321 | (1) |
|
9.2.5 National policy framework |
|
|
321 | (1) |
|
9.3 Action plan for LFG management |
|
|
321 | (5) |
|
9.3.1 Legislation, regulation and standard development |
|
|
321 | (1) |
|
9.3.2 Economic incentives |
|
|
322 | (1) |
|
9.3.3 Education and awareness |
|
|
323 | (1) |
|
9.3.4 Information dissemination and training |
|
|
323 | (1) |
|
9.3.5 Institutional strengthening |
|
|
324 | (1) |
|
9.3.6 Demonstration activities |
|
|
324 | (1) |
|
9.3.7 Financial mechanism |
|
|
325 | (1) |
|
9.4 Framework for implementation of action plan |
|
|
326 | (4) |
|
|
330 | (3) |
|
|
330 | (3) |
Appendix A Format for monitoring of LFG |
|
333 | (8) |
Appendix B Format for conducting waste audit at a landfill site |
|
341 | (8) |
Appendix C Format for waste characterization |
|
349 | (2) |
Appendix D Useful websites |
|
351 | (2) |
Appendix E Glossary of terms in landfill gas management |
|
353 | (16) |
Appendix F List of abbreviations |
|
369 | (2) |
Appendix G Template for country-specific LFG action plan |
|
371 | (4) |
Appendix H LFG calculation worksheet |
|
375 | (4) |
Appendix I List of LFG to PNG/CNG Technology Providers |
|
379 | (2) |
Subject index |
|
381 | |