SUBSURFACE LANDFILL FIRE
SUPPRESSION AND MONITORING
A Case Study at the Campbell
Mountain Landfill, Penticton, British Columbia
Gas Monitoring Results.
The presence of carbon monoxide (CO) at concentrations greater
than a few parts per million (ppm) usually indicates refuse combustion
(Marshall). Gas monitoring was therefore carried out periodically
during the drilling program, after the installation of the standpipes,
and at the time the Thermistors were installed.
The monitoring was
performed using a PhD Plus portable gas analyzer. Although the
analyzer is capable of sampling four compounds at once (methane,
oxygen, carbon monoxide and hydrogen sulphide), a complete and
accurate set of gas readings could not be completed due to the
continuous overloading of the gas detector by methane. The focus
was therefore placed on obtaining accurate carbon monoxide measurements.
The CO concentrations measured in the wells drilled over the North
Ravine are listed in Table3.
initial carbon monoxide concentrations measured in GMW98-2A, GMW98-3A/B
and GMW98-6A/B indicated the presence of a refuse fire. The initial
CO concentrations measured in GMW98-1A are indicative of standard
CO levels found in landfill gas.
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Initial Carbon Monoxide Concentrations
||March 24 1998
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