Wednesday, March 23, 2022
10:00 AM - 10:45 AM (CDT)
Using Desiccants for Treatment of Landfill Gas for Seasonal Use Applications
Kansas City Convention Center - Room 2103 AB

Although even small landfills can generate significant quantities of landfill gas (LFG), beneficial use of this LFG may be difficult, or even impossible, at many sites due to the lack of a nearby LFG user facility. Traditional methods of cleaning, dewatering, drying and delivering LFG to a user facility are sometimes cost prohibitive when only seasonal uses are available in the vicinity of a landfill. However, although a use may be seasonal or intermittent, it may still be significant if a cost effective method of delivering the LFG is developed. This presentation will discuss a case in which LFG from a small landfill is successfully compressed, treated and dried in an innovative system utilizing a two tower, two type desiccant and filtration system. The treated LFG is delivered through two pipelines for use as a heating fuel in nearby vehicle maintenance facilities. Since the heating load at both of the maintenance facilities is seasonal, the LFG treatment system was designed for minimal capital costs, minimal maintenance, ease of seasonal startup and shutdown and simplified, unattended operation. This presentation will discuss the design and operation of the LFG treatment and delivery system over multiple heating seasons, as well as the modifications made to radiant tube heaters to accommodate the use of LFG and dual LFG/Natural Gas firing.

Joseph Curro