Technologies for reducing GHG emissions from waste

Technologies for reducing GHG emissions from waste are -

A. LFG Collection Efficiency Improvement Collection efficiency is contingent upon landfill design and the manner in which landfills are operated and maintained. Gas collection efficiency can be improved by implementing rigorous gas well and surface monitoring and leak identification and repair. Factors contributing to variability in collection efficiency are discussed below. There are two types of LFG collection systems, active and passive. Passive systems rely on the natural pressure gradient between the waste mass and the atmosphere to move gas to collection systems. Most passive systems intercept LFG migration and the collected gas is vented to the atmosphere. Active systems use mechanical blowers or compressors to create a vacuum that optimizes LFG collection.

B. LFG Control Devices After collection, LFG may be controlled and/or treated for subsequent sale or use as an energy source ____ _________ ______ _____ ___.
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