Features of Summerston Landfill Site...

Capping

The Summerston stopped receiving waste in 2002. At the moment the site is undergoing capping. Capping is done in the site to maximize landfill gas generation and check migration.

Summerston Landfill Site undergoing capping

Leachate Management System

Leachate is the liquid that has percolated through solid waste. The source of the liquid is primarily the water already present in the waste and any water induced from an external source such as rain water and ground water.

To prevent the movement of leachate beyond the landfill site, an effective impermeable liner collection system becomes critical. Leachate collection pipes are entrenched near the bottom of the liner layers and are connected to a main pipe that leads to a leachate holding tank

Summerston Landfill treatment lagoon

Landfill Gas Management System

At the Summerston landfills, wells have been installed to extract the gas and burn it in IC engines to recover energy

The movement of landfill gas is monitored and controlled throughout the operation of the landfill to reduce atmospheric emissions, to minimize the release of odourous emissions and to restrict subsurface migration.

One beneficial use of landfill gas is to generate power. The generators at Summerston landfill provide the power to be supplied to the national grid. The power generated from the utilization of the landfill gas is supplied to Scottish Power

Landfill gas collection pipeline at Summerston

Landfill Gas borehole at Summerston Station

Glenbacher Internal Combustion Engine at Summerston