Quantifying Uncontrolled Landfill Gas Emissions from Two Florida ...

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Table 3-39. Estimated NMOC Flux Values from the Control and Bioreactor Cells of Site #2 Compound Corrected Landfill Gas Concentration (ppbv) Estimated Flux Value from Control Cell (grams per day) Estimated Flux Value from Bioreactor Cell (grams per day) Dichlorodifluoromethane 116.5 11 2.5 1,2-Chloro-1,1,2,2-Tetrafluoroethane 13.2 1.8 0.41 Chloromethane 150.4 5.9 1.4 Bromomethane 10.5 0.78 0.18 Ethanol 111.3 4.0 0.92 Carbon disulfide 83.9 5.0 1.2 Methylene chloride 1569 100 24 Acetone 2612 120 27 Hexane 214.9 14 3.3 cis-1,2-dicloroethene 88.9 6.7 1.6 Cyclohexane 334.8 22 5.1 Chloroform 117.8 11 2.5 Ethyl Acetate 163.3 11 2.6 Tetrahydrofuran 156.8 8.8 2.0 Heptane 128.8 10 2.3 Benzene 260.1 16 3.7 Trichloroethylene 64.0 6.5 1.5 Toluene 1790 130 30 4-Methyl-2-pentanone 29.7 2.3 0.53 Ethylbenzene 1136 94 22 m/p-Xylene 3086 250 29 o-Xylene 1143 94 22 Styrene 246.6 20 4.6 1,3,5-trimethylbenzene 633.7 59 14 1,2,4-trimethylbenzene 827.8 77 18 1,3-dichlorobenzene 258.6 30 6.8 3-39
3.3 Gas and Mercury Sampling Results from the October 2007 Field Campaign As mentioned in previous sections, the dimethyl mercury data, methane, and permanent gas analysis data from the February 2007 field campaign were labeled as suspect. In response to these results, an additional field campaign was conducted during October 2007 at both sites to collect additional gas and mercury samples. Due to limited project resources, carbon tube samples were collected and analyzed only for total mercury concentrations using a thermal decomposition furnace attached to a cold-vapor atomic adsorption mercury analyzer manufactured by Ohio Lumex. In addition to the mercury data, landfill gas composition data was collected with a Landtec GEM 2000+ landfill gas monitor. The results of the October 2007 campaign are presented in the following sections. 3.3.1 Total Mercury Concentrations The total mercury concentrations measured at Site #1 and Site #2 are presented in Tables 3-40 and 3-41, respectively. Table 3-40. Total Mercury Concentrations Measured at Site #1 during the October 2007 Field Campaign Tube # Spike Recovery (%) Conc (µg/m 3 ) Date 1 25 10/24/2007 2 22 10/24/2007 3 102 26 10/24/2007 4 25 10/24/2007 CCV 104 Average=20 Total mercury concentrations in the landfill gas at Site #1 ranged from 22 to 26 µg/m 3 , with an average of 25 µg/m 3 for all of the samples. Sampled matrix spike recovery for the total mercury samples were 102 percent, and continuous calibration verification (CCV) recoveries were 104 percent. 3-40
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Quantifying Uncontrolled Landfill G
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Foreword The U.S. Environmental Pro
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3.1.3 Total Site Methane Emissions
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List of Tables Table 1-1. Target Co
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Table 3-28. Calculated Methane Flux
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Table C-6. Methane Concentrations (
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List of Figures Figure 1-1. Map of
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Executive Summary Waste decompositi
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instrument (IMACC, Inc.). Figures 1
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Figure 1-3. Scanning Boreal GasFind
Page 23 and 24: wind direction data are collected n
Page 25 and 26: adsorption spectrometer. The analyz
Page 27 and 28: Table 1-2. Schedule of Work Perform
Page 29 and 30: Figure 2-2. Detail of measurement c
Page 31 and 32: corners of the cell, respectively.
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Page 37 and 38: was aligned on the mirror targets i
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Page 41 and 42: Figure 3-3 Summary of ORS measureme
Page 43 and 44: Table 3-5. Calculated methane flux
Page 45 and 46: Table 3-7. Calculated methane flux
Page 47 and 48: cell to the base. The following equ
Page 49 and 50: Table 3-9. Results of TO-15 analysi
Page 51 and 52: Table 3-10. Results of C1 to C6 and
Page 53 and 54: Table 3-14. Monomethyl Mercury Conc
Page 55 and 56: 3.2 Landfill Site #2 3.2.1 Control
Page 57 and 58: Table 3-17. Calculated Methane Flux
Page 63 and 64: 3.2.2 Bioreactor Cell 3.2.2.1 Febru
Page 69 and 70: Based on the calculations presented
Page 71 and 72: Table 3-34. Results for C1 to C6 an
Page 73: Table 3-38. Monomethyl Mercury Conc
Page 77 and 78: Site #1 with a level of 83 ppmv. Th
Page 79 and 80: The surveys also found significant
Page 81 and 82: Monomethyl mercury concentrations i
Page 83 and 84: 5.1 Equipment Calibration Chapter 5
Page 85 and 86: The R 2 value was used to assess th
Page 87 and 88: the measured path-integrated methan
Page 89 and 90: 5.2.7 DQI Check of Total Mercury Sa
Page 91 and 92: Site #1 5.4 Site #2 77.9 Completene
Page 95 and 96: U.S. Environmental Protection Agenc
Page 97 and 98: d f e c b PDCs Y X a 2 12( y)( z) (
Page 99 and 100: When the VRPM configuration consist
Page 103 and 104: Table B-3. Distance, and Horizontal
Page 105 and 106: Table B-7. Distance, and Horizontal
Page 107 and 108: APPENDIX C Path-Averaged Methane Co
Page 109 and 110: Table C-3. Methane Concentrations (
Page 117 and 118: Table C-11. Methane Concentrations
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Table C-19. Methane Concentrations
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Table C-23. Methane Concentrations
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