Title

Changes in landfill gas quality as a result of controlled air injection

Authors

Authors

J. Powell; P. Jain; H. D. Kim; T. Townsend;D. Reinhart

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

Environ. Sci. Technol.

Keywords

VOLATILE ORGANIC-COMPOUNDS; SOLID-WASTE LANDFILL; CARBON-MONOXIDE; EMISSION; MANAGEMENT; SITE; SOIL; Engineering, Environmental; Environmental Sciences

Abstract

Air addition has been proposed as a technique for rapid stabilization of municipal solid waste (MSW) in landfills. The objective of this study was to observe the change in concentration of trace constituents of landfill gas in response to air addition. Air injection tests were conducted at a MSW landfill in Florida, and the concentrations of several gaseous constituents at adjacent wells within the waste were measured. The concentrations of methane, carbon dioxide, and oxygen, as well as several trace constituents, were measured both prior to and during air addition. The trace components investigated included a suite of volatile organic compounds (VOCs), nitrous oxide (N2O), carbon monoxide (CO), and hydrogen sulfide (H2S). A significant increase in CO was observed in 9 of 14 monitoring points; overall, CO concentrations were found to increase as the ratio of CH4 to CO2 decreased. A significant decrease in H2S was observed at 6 of 14 monitoring points. Air injection did not have a noticeable affect on VOC or N2O concentrations compared to initial levels.

Journal Title

Environmental Science & Technology

Volume

40

Issue/Number

3

Publication Date

1-1-2006

Document Type

Article

Language

English

First Page

1029

Last Page

1034

WOS Identifier

WOS:000235227600066

ISSN

0013-936X

Share

COinS