Evaluation of Greenhouse Gas Emissions from Septic ... - Geoflow

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AB Assembly BillALT Auburn Lake TrailsBOD u Ultimate carbonaceous oxygen demandCOD Chemical oxygen demandECD Electron capture detectorFC Flux chamberFTIR Fourier transform infraredGC Gas chromatographGDPUD Georgetown Divide Public Utility DistrictGHG Greenhouse gasGWP Global warming potentialHRT Hydraulic residence timeIPCC Intergovernmental Panel on Climate ChangeLCA Life cycle assessmentMB Mass balanceM gmg/LODOLRppbppmSRBs gSRTTDLSSUASBUPCUSDALIST OF ACRONYMSGeometric meanMilligrams per literOxygen demandOrganic loading rateParts per billionParts per millionSulfate reducing bacteriaGeometric standard deviationSolids retention timeTunable diode laser spectroscopyUpflow anaerobic sludge blanketUniform plumbing codeUnited States Department of AgricultureU.S. EPA United States Environmental Protection AgencyVFA Volatile fatty acidVSS Volatile suspended solidWWTP Wastewater treatment plantxi
Evaluation of Greenhouse Gas Emissions from Septic Systemsxii
Page 1 and 2: D e c e n t r a l i z e dEvaluation
Page 3 and 4: The Water Environment Research Foun
Page 5 and 6: ABSTRACT AND BENEFITSAbstract:This
Page 7 and 8: 3.1.2 Flux Chamber Inserts for Sept
Page 9 and 10: LIST OF TABLESES-1 Summary of Metha
Page 11: 3-7 Use of Flux Chamber in the Soil
Page 15 and 16: tank is converted anaerobically. Fu
Page 17 and 18: RecommendationsBased on the finding
Page 19 and 20: ♦♦Collection of gas samples fro
Page 21 and 22: include Imhoff tanks, anaerobic baf
Page 23 and 24: 2.2 Septic Tank CharacteristicsSept
Page 25 and 26: 2.2.3 General Conversion Processes
Page 27 and 28: increase in thickness with daily so
Page 29 and 30: environmental damage and/or health
Page 31 and 32: Figure 2-6. The Intermediate Steps
Page 33 and 34: In anaerobic reactors, the alkalini
Page 35 and 36: epresentative concentrations. Inhib
Page 37 and 38: 2.4 Gas Emissions from Septic Syste
Page 39 and 40: Figure 2-9. Flux Chamber Designed b
Page 41 and 42: due to settling and anaerobic diges
Page 43 and 44: total methane production value of 1
Page 45 and 46: 2-26
Page 47 and 48: The main body of the flux chamber w
Page 49 and 50: 3.1.3 Flux Chamber Design for Use i
Page 51 and 52: 3.2 Sampling ProtocolsThe three pri
Page 53 and 54: 3.2.3 Sampling Method for Vent Syst
Page 55 and 56: 3.3 Gas AnalysisThe gas samples wer
Page 57 and 58: ppm (raw data from laboratory) were
Page 59 and 60: gal. Sites 5, 6, and 7 were the onl
Page 61 and 62: Table 4-2. Continued from previous
Page 63 and 64:
Three of the septic tanks that appe
Page 65 and 66:
steeper than that for the rest of t
Page 67 and 68:
espectively, and for methane were 4
Page 69 and 70:
oth before and after the septic tan
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noted that in this approach it is a
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The septic tank effluent CO 2 equiv
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(a)(b)Figure 5-9. Gas Emission Rate
Page 77 and 78:
Figure 5-11. Emission Rates from Si
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(a)(b)Figure 5-13. Views of the Eff
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It is important to note that the U.
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♦ Methane generated during the an
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A-2
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B. Based on COD Loading1. Determine
Page 89 and 90:
C-2
Page 91 and 92:
2. First row of Table 23 from Sasse
Page 93 and 94:
Biogas production = (COD inflow - C
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E-2
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SAMPLING FROM SOIL SURFACEDate:Hour
Page 99 and 100:
F-4
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G-2
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DateSamplelocationGas measurement (
Page 105 and 106:
After the initial inspections, Site
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H-2 Site 2The scum layer in the fir
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Table H-10. GHG Emission Rates From
Page 111 and 112:
Table H-14. Summary of the Water Qu
Page 113 and 114:
Table H-18. Summary of the Water Qu
Page 115 and 116:
Table H-22. GHG Emission Rates from
Page 117 and 118:
Sample Gas measurement (g/capita·d
Page 119 and 120:
H-9 Summary of ResultsA summary of
Page 121 and 122:
I-2
Page 123 and 124:
Treatment in Decentralized Wastewat
Page 125 and 126:
Philip, H., S. Maunoir, A. Rambaud,
Page 127 and 128:
Winfrey, M.R. and J.G. Zeikus (1977
Page 129 and 130:
Fort Worth, City ofHouston, City of
Page 132:
W E R F P r o d u c t O r d e r F o
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