초록 ▼

A process for treating a landfill for recovering methane therefrom wherein a mixture of methane and carbon dioxide is withdrawn from a central portion of the landfill and the carbon dioxide and methane are separated. The methane is fed to a pipeline and a portion of the carbon dioxide is fed to well

A process for treating a landfill for recovering methane therefrom wherein a mixture of methane and carbon dioxide is withdrawn from a central portion of the landfill and the carbon dioxide and methane are separated. The methane is fed to a pipeline and a portion of the carbon dioxide is fed to wells spaced around the periphery of the landfill at a pressure of 7 to 170 kPa to prevent air from entering the landfill around the periphery thereof.

대표청구항 ▼

A process for recovering methane from a landfill, comprising (a) providing at least one central well and a plurality of peripheral wells in the landfill, (b) withdrawing a mixture of methane and carbon dioxide from said central well, (c) separating the carbon dioxide from said mixture to provide a c

A process for recovering methane from a landfill, comprising (a) providing at least one central well and a plurality of peripheral wells in the landfill, (b) withdrawing a mixture of methane and carbon dioxide from said central well, (c) separating the carbon dioxide from said mixture to provide a carbon dioxide enriched stream, and (d) applying a portion of the carbon dioxide enriched stream to said peripheral wells at a pressure of 7 kPa to 170 kPa.