Landfill Monitoring with FleetZOOM
Landfill flare and landfill gas monitoring provided
by FleetZOOM products give landfill managers the tools to run facilities at peak form.
The natural decomposition of organic material in
landfills produces a great deal of Methane gas.
This gas should be burned (or "flared") to reduce
odor, which also limits the impact on the environment
and minimizes greenhouse gas emissions.
benefit of monitoring the landfill gas collection
and leachate monitoring with the FleetZOOM FZ400 is
that it enables the gas operation manager to
quickly respond to problems and minimize the
impacts to the surrounding environment.
Landfills are typically large and encompass many
acres per site. The gas collection systems in
landfills are complex and spread out all across
each facility. Furthermore, gas operation managers
are typically responsible for many landfills
at once, so it is not practical or even possible
for a sole individual to physically be at each
active landfill site.
While periodic surveys
and analysis of the facilities by environmental
engineers help, continuous,
real-time, remote monitoring of landfill gas with a FleetZOOM
FZ400 landfill gas monitoring system will provide landfill
managers with data needed to respond to any
number of possible issues quickly, before
they turn into serious problems.
Landfill flares are controlled
by electronics, typically made up of temperature
controllers and relay logic systems or PLCs
(programmable logic controllers). The control
systems operate the blower motors, valves and
control the solenoids that comprise the landfill
Methane flare system.
The landfill flare system
often uses a large blower motor (20 hp typically)
to pull a vacuum on the landfill across a
network of PVC pipe gas extractors throughout
the site. These extractors are like straws
stuck deep into the landfill, so the blower
can literally suck the gas out of decomposing
At the blower motor, the network
of gas extraction pipes converge and the landfill
Methane gas stream is routed into a single large
pipe with a typical flow rate of 500 to 5000 SCFM.
The flare controller may employ Nitrogen actuated
valves to regulate this flow. The Methane concentration
level is typically in the 30% to 60% range. It
is routed to a flare stack where the gas is
At the flare stack
and landfill methane monitoring system like the FleetZOOM FZ400
is used to monitor the Methane, Oxygen and Nitrogen
concentrations of the gas as well as the blower
volume in SCFM and combustion temperature.
flare controller may use Propane to get the burn
started with an electronically controlled spark.
A landfill gas operations manager directly benefits
from continuous, real-time, remote monitoring of
the control electronics which report the gas flow
rate, flare temperature, Nitrogen pressure and
Propane pressure with the
FleetZOOM landfill flare monitoring system. Other uses include the
monitoring the totalizers for flow. These flow
values can be used in reports filed with
cities or municipalities, as well as the
Due to the large vacuums, and the pressure
and temperature differentials at work in a
landfill gas system, the Methane gas extraction
process, a liquid condensate comes out of
the gas stream. Ideally this occurs at the
flare stack in what is often referred to as
the knock-out pot.
This liquid condensate
commonly known as "effluent" or "leachate"
in landfill terminology is a waste
by-product and must be watched with
an effluent monitoring system. Depending on the gas
system's flow rate, hundreds to thousands of
gallons of leachate may be produced per day
during the gas extraction process.
extraction, storage, and disposal systems
are additional necessities in the gas operations
of landfills. Leachate is condensed out of the
gas stream from the vacuum pulled on the
landfill to extract the Methane gas. Leachate
collection sumps, tanks, pumps, wet wells,
knock-out pots are among the many leachate
management components used to process this
By remotely monitoring these systems
with the FleetZOOM FZ400, specifically leachate
tank levels, pump run times, duty cycles and
faults, the gas operations manager will respond
to any type of leachate collection issue quickly.