Landfill gas monitoring is the process by which gases that are released from landfill digestion are collected and measured for greenhouse compound content, explosive compound levels and toxic chemical content. Monitoring may be done either at the individual gas extraction well or at the power plant (or flare). In either case, users are monitoring gas composition (CH4, CO2, O2 & Balance Gas) as well as temperature, pressure and flow rate. Management of the landfill gas extraction (balancing) is critical and maintenance intervals are defined to manage drift.

Why monitor and analyze the gas I produce?

The composition of landfill gas (LFG) is crucial. The most abundant component in LFG is methane, which typically makes up 50% to 60% of the gas. To verify the calorific conditions in the natural breakdown of organic waste in a landfill site operators analyse their gas for oxygen content, this ensures the balancing of the gas wells/manifolds produce maximum levels of methane to increase energy production. It is also important to monitor for levels of gases harmful to the plant equipment such as hydrogen sulfide.

What benefits will I get?

Increased Return on Investment, Protection of expensive plant equipment (CHP’s) and Validation and optimization of the landfill gas collection system

How do I do it?

Operators opt for fixed in line systems that will measure multiple sample point to ensure the process verification is monitored. These systems connect via industry standard protocols to the operators control systems housed on site. Portable analyzers offer flexibility for process monitoring at various wells/manifolds in the process to ensure maximum efficiency of the collection system.

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