Parameter: |
Maximum methane production capacity = 0.6 g / g |
Reference: |
USEPA (2015). Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2013. U.S. Environmental Protection Agency. Chapter 7: Waste. http://www.epa.gov/climatechange/emissions/usinventoryreport.html |
Parameter: |
Methane correction factor for anaerobic systems = 0.8 |
Reference: |
USEPA (2015). Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2013. U.S. Environmental Protection Agency. Chapter 7: Waste. http://www.epa.gov/climatechange/emissions/usinventoryreport.html |
Parameter: |
Per capita biological organic demand (BOD5) = 90 g / person / day |
Reference: |
USEPA (2015). Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2013. U.S. Environmental Protection Agency. Chapter 7: Waste. http://www.epa.gov/climatechange/emissions/usinventoryreport.html |
Parameter: |
Proportion anaerobic = 0.043 |
Reference: |
USEPA (various). Clean Watershed Needs Surveys for 2000 and 2004. Data have been extrapolated for years not covered in the surveys. Accessed online at: http://www.epa.gov/cwns/ |
Parameter: |
Proportion anaerobic with primary treatment = 0.628 |
Reference: |
USEPA (various). Clean Watershed Needs Surveys for 2000 and 2004. Data have been extrapolated for years not covered in the surveys. Accessed online at: http://www.epa.gov/cwns/ |
Parameter: |
Proportion anaerobic without primary treatment = 0.372 |
Reference: |
USEPA (various). Clean Watershed Needs Surveys for 2000 and 2004. Data have been extrapolated for years not covered in the surveys. Accessed online at: http://www.epa.gov/cwns/ |
Parameter: |
Proportion centrally treated = 0.9 |
Reference: |
CWTRC, (2003). Status Report: Onsite Wastewater Treatment Systems in California. Jointly presented by: California Wastewater Training & Research Center, California State University Chico and USEPA Region 9 Ground Water Office. August 2003. http://www.csuchico.edu/cwtrc/Pages/InfoandReoprtspage.htm |
Parameter: |
Proportion of BOD removed in primary treatment = 0.325 |
Reference: |
USEPA (2015). Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2013. U.S. Environmental Protection Agency. Chapter 7: Waste. http://www.epa.gov/climatechange/emissions/usinventoryreport.html |
Constant: |
Average number of days per year = 365.2425 day |
Reference: |
USNO (2004). U.S. Naval Observatory, Astronomical Applications Department, Leap Years. Accessed online at: http://www.usno.navy.mil/USNO/astronomical-applications/astronomical-information-center/leap-years |
Constant: |
Methane density = 662 g / m3 |
Reference: |
USEPA (2013). Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2011. U.S. Environmental Protection Agency. Annex 3.11: Methodology for Estimating CH4 and N2O Emissions from Manure Management. https://www.epa.gov/sites/production/files/2015-12/documents/us-ghg-inventory-2013-annexes.pdf |
Constant: |
Global warming potential of CH4 = 25 |
Reference: |
IPCC (2007). Climate Change 2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change. Solomon S., Qin D., Manning M., Chen Z., Marquis M., Averyt K.B., Tignor M., and Miller H.L. (eds.). http://www.ipcc.ch/publications_and_data/publications_ipcc_fourth_assessment_report_synthesis_report.htm |