Q: What is the flame at Lamb Weston in Twin Falls and what is it for?

A: “The flame is part of an anaerobic digester system,” said Shelby Stoolman, communication and external relations for Lamb Weston. “Because our facility is washing and blanching potatoes, the wastewater contains starch, sugars, etc. Left untreated, these organics can consume oxygen in public waterways. The anaerobic digester removes organic matter from wastewater before it is discharged to the city of Twin Falls’ treatment plant.”

The flare system is atop about a 20-foot pipe in back of the plant, on the west side of the Victory Bridge. It can be seen on the corner of Victory Avenue and Oak Street.

“Methane gas is a natural byproduct of the anaerobic treatment system,” Stoolman said. “Excess gas is burned through flare systems, which is the flame that can be seen. The flare burns anytime wastewater is available for treatment and excess methane gas is generated in the process.”

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ConAgra Foods Lamb Weston is a potato processing plant located at 856 Russet St., Twin Falls.

While it does not burn 24 hours a day, 365 days a year, it’s probably pretty close said Stoolman.

“Lamb Weston acquired ownership of the digester system from the city of Twin Falls in April 2017 and now operates the digester,” Stoolman said.

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