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Sunny Farms Invests in Upgrades to Control Potential Odors

Thursday, January 3, 2019

Sunny Farms is making significant investments to enhance odor controls at the landfill.

A capping project is underway to cover a 22-acre portion of the landfill with clay and an impermeable plastic liner to prevent surface water infiltration and minimize potential gas emissions. The project, slated for completion in the second quarter of 2019, is for the portion of the landfill that has reached capacity.

Sunny Farms Engineer Ed Brdicka said the project also should help with odor control by sealing gas within the landfills and allowing it to be more efficiently routed into the landfill’s gas collection system.

“This will improve gas collection at the site,” he said.

Meanwhile, two other projects currently underway include: expansion of the existing gas collection system and installation of a new hydrogen sulfide treatment system.

Gas is a natural byproduct of landfill materials as they age. Sunny Farms has placed a network of wells designed to efficiently collect the gas about 250 feet apart. The wells are connected by pipes, which route the collected gas to a flare, where it is harmlessly burned off.

The recently completed expansion project extended gas collection on the 82-acre southern portion of the landfill, where work already has been done to add wells and pipes. The expansion doubled the number of wells on the southern portion of the landfill to 26, and also roughly doubled the number of horizontal gas collector pipes on the southern area to 27. Completion of the project brought the total number of gas wells at the landfill to 98 and the number of horizontal collector pipes to 36.  Additions to the system are planned on at least an annual basis, including the summer of 2019.

Additionally, installation of a new hydrogen sulfide treatment system is currently underway and scheduled for completion in February 2019.

Sunny Farms began selection, design and procurement of the treatment system in September 2018. Initial components were delivered and installation began in December. Installation of this system is a major investment and is designed specifically to remove hydrogen sulfide gas at the landfill, which will allow the facility to more effectively control potential odors.

The hydrogen sulfide treatment system will consist of six vacuum boxes filled with a granular material to remove hydrogen sulfide from extracted landfill gas. This treatment system is expected to significantly reduce hydrogen sulfide levels and help prevent noticeable odors. The system is expected to commence operation in January 2019, with completion of all six boxes expected in early February 2019.

“All of these projects represent Sunny Farms’ commitment to managing a sophisticated operation safely, efficiently, and with the public in mind,” Brdicka said.