Santek looks to pipe methane from landfill

By TIM SINIARD
Posted 6/19/19

Methane produced at the Santek Waste Services-operated Bradley County Landfill will be piped to a natural gas pipeline by late 2020, according to a company spokesperson.Cheryl Dunson told members of …

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Santek looks to pipe methane from landfill

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Methane produced at the Santek Waste Services-operated Bradley County Landfill will be piped to a natural gas pipeline by late 2020, according to a company spokesperson.

Cheryl Dunson told members of the Bradley County Commission earlier this week that efforts are underway to reduce emissions at the landfill, which have led nearby residents to complain about the odors. The odors are caused by hydrogen sulfide and organic compounds.

In addition, Dunson said methane is 23 times more potent as a greenhouse gas.

“We recognize odor is an issue,” Dunson said. “We have decided to voluntarily install a gas management system to reduce the odor attributable to gas.”

Currently, Santek has constructed 40 wells that collect the methane and pipe it to a system of flares, which then vent the gas into the atmosphere.

“When landfills reach a certain size, depth and age, gas management becomes a regulatory mandate,” Dunson said. “The state currently requires us to passively vent the gas at the landfill which creates the odor.”

 The company has installed more than 10,000 feet of piping to connect the wells to a renewable natural gas plant, located at the landfill. In addition, 7,000 feet of pipeline are being installed in order to allow the plant to pipe natural gas to the East Tennessee Natural Gas Pipeline.

The renewable gas plant will be operational next year. The interconnect station will be located on property across Bancroft Road at the top of Orphan Ridge, which is adjacent to the landfill, according to Dunson.

Once completed, odors caused by the vented methane gas will be drastically reduced, she said.

Dunson said an agreement has been worked out with a nearby property owner, who has agreed to allow Santek access to their property in order to connect to the natural gas pipeline.

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