What are my options to control/collect landfill gas?
The methods used to control landfill gas migration are either a passive gas venting system or an active system. A passive system allows landfill gas to be vented through vertical wells, trench systems, or granular layers to the atmosphere. An active system mechanically withdraws landfill gas by means of blower systems. Usually the collected gas is flared. The decision to use either a passive or an active system depends on the type of waste materials, age of the waste, size of the landfill, proximity of off-site receptors, and final cover configuration.
