Assessing methods to estimate emissions of non-methane organic compounds from landfills

Jovita M. Saquing, Jeffrey P. Chanton, Ramin Yazdani, Morton A. Barlaz, Charlotte Scheutz, Don R. Blake, Paul T. Imhoff

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

The non-methane organic compound (NMOC) emission rate is used to assess compliance with landfill gas emission regulations by the United States Environmental Protection Agency (USEPA). A recent USEPA Report (EPA/600/R-11/033) employed a ratio method to estimate speciated NMOC emissions (i.e., individual NMOC emissions): speciated NMOC emissions=measured methane (CH4) emission multiplied by the ratio of individual NMOCs concentration relative to CH4 concentration (CNMOCs/CCH4) in the landfill header gas. The objectives of this study were to (1) evaluate the efficacy of the ratio method in estimating speciated NMOC flux from landfills; (2) determine for what types of landfills the ratio method may be in error and why, using recent field data to quantify the spatial variation of (CNMOCs/CCH4) in landfills; and (3) formulate alternative models for estimating NMOC emissions from landfills for cases in which the ratio method results in biased estimates. This study focuses on emissions through landfill covers measured with flux chambers and evaluates the utility of the ratio method for estimating NMOC emission through this pathway. Evaluation of the ratio method was performed using CH4 and speciated NMOC concentration and flux data from 2012/2013 field sampling of four landfills, an unpublished landfill study, and literature data from three landfills. The ratio method worked well for landfills with thin covers (
Original languageEnglish
JournalWaste Management
Volume34
Issue number11
Pages (from-to)2260-2270
Number of pages11
ISSN0956-053X
DOIs
Publication statusPublished - 2014

Keywords

  • NMOC emission
  • NMOC flux estimation
  • Field measurement
  • Landfill gas emission

Cite this

Saquing, J. M., Chanton, J. P., Yazdani, R., Barlaz, M. A., Scheutz, C., Blake, D. R., & Imhoff, P. T. (2014). Assessing methods to estimate emissions of non-methane organic compounds from landfills. Waste Management, 34(11), 2260-2270. https://doi.org/10.1016/j.wasman.2014.07.007
Saquing, Jovita M. ; Chanton, Jeffrey P. ; Yazdani, Ramin ; Barlaz, Morton A. ; Scheutz, Charlotte ; Blake, Don R. ; Imhoff, Paul T. / Assessing methods to estimate emissions of non-methane organic compounds from landfills. In: Waste Management. 2014 ; Vol. 34, No. 11. pp. 2260-2270.
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Saquing, JM, Chanton, JP, Yazdani, R, Barlaz, MA, Scheutz, C, Blake, DR & Imhoff, PT 2014, 'Assessing methods to estimate emissions of non-methane organic compounds from landfills', Waste Management, vol. 34, no. 11, pp. 2260-2270. https://doi.org/10.1016/j.wasman.2014.07.007

Assessing methods to estimate emissions of non-methane organic compounds from landfills. / Saquing, Jovita M.; Chanton, Jeffrey P.; Yazdani, Ramin; Barlaz, Morton A.; Scheutz, Charlotte; Blake, Don R.; Imhoff, Paul T.

In: Waste Management, Vol. 34, No. 11, 2014, p. 2260-2270.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Assessing methods to estimate emissions of non-methane organic compounds from landfills

AU - Saquing, Jovita M.

AU - Chanton, Jeffrey P.

AU - Yazdani, Ramin

AU - Barlaz, Morton A.

AU - Scheutz, Charlotte

AU - Blake, Don R.

AU - Imhoff, Paul T.

PY - 2014

Y1 - 2014

N2 - The non-methane organic compound (NMOC) emission rate is used to assess compliance with landfill gas emission regulations by the United States Environmental Protection Agency (USEPA). A recent USEPA Report (EPA/600/R-11/033) employed a ratio method to estimate speciated NMOC emissions (i.e., individual NMOC emissions): speciated NMOC emissions=measured methane (CH4) emission multiplied by the ratio of individual NMOCs concentration relative to CH4 concentration (CNMOCs/CCH4) in the landfill header gas. The objectives of this study were to (1) evaluate the efficacy of the ratio method in estimating speciated NMOC flux from landfills; (2) determine for what types of landfills the ratio method may be in error and why, using recent field data to quantify the spatial variation of (CNMOCs/CCH4) in landfills; and (3) formulate alternative models for estimating NMOC emissions from landfills for cases in which the ratio method results in biased estimates. This study focuses on emissions through landfill covers measured with flux chambers and evaluates the utility of the ratio method for estimating NMOC emission through this pathway. Evaluation of the ratio method was performed using CH4 and speciated NMOC concentration and flux data from 2012/2013 field sampling of four landfills, an unpublished landfill study, and literature data from three landfills. The ratio method worked well for landfills with thin covers (

AB - The non-methane organic compound (NMOC) emission rate is used to assess compliance with landfill gas emission regulations by the United States Environmental Protection Agency (USEPA). A recent USEPA Report (EPA/600/R-11/033) employed a ratio method to estimate speciated NMOC emissions (i.e., individual NMOC emissions): speciated NMOC emissions=measured methane (CH4) emission multiplied by the ratio of individual NMOCs concentration relative to CH4 concentration (CNMOCs/CCH4) in the landfill header gas. The objectives of this study were to (1) evaluate the efficacy of the ratio method in estimating speciated NMOC flux from landfills; (2) determine for what types of landfills the ratio method may be in error and why, using recent field data to quantify the spatial variation of (CNMOCs/CCH4) in landfills; and (3) formulate alternative models for estimating NMOC emissions from landfills for cases in which the ratio method results in biased estimates. This study focuses on emissions through landfill covers measured with flux chambers and evaluates the utility of the ratio method for estimating NMOC emission through this pathway. Evaluation of the ratio method was performed using CH4 and speciated NMOC concentration and flux data from 2012/2013 field sampling of four landfills, an unpublished landfill study, and literature data from three landfills. The ratio method worked well for landfills with thin covers (

KW - NMOC emission

KW - NMOC flux estimation

KW - Field measurement

KW - Landfill gas emission

U2 - 10.1016/j.wasman.2014.07.007

DO - 10.1016/j.wasman.2014.07.007

M3 - Journal article

VL - 34

SP - 2260

EP - 2270

JO - Waste Management

JF - Waste Management

SN - 0956-053X

IS - 11

ER -