Sioux City, Iowa, approves $9.3 million renewable natural gas project

The project will implement a system that captures, cleans and compresses a byproduct gas created in the city’s wastewaster treatment plant.

Sioux City, Iowa’s city council members approved a $9.3 million renewable fuel project at the city’s wastewater treatment plant, a report by the Sioux City Journal says. The council also approved $16 million in upgrades of the wastewater treatment plant that will increase the capacity, the report says.

The city will enter into an agreement with Bartlett & West, Topeka, Kansas, to perform all services leading up to the construction, the report says, as well as the upgrades to the facility. The project includes putting a system in place to capture, clean and compress the gas created as a byproduct during the anaerobic digestion process the city has implemented at the plant.

The gas is set to be used in the city’s fleet of vehicles or channeled into a nearby pipeline to sell, according to the report.

Over the next five years, upgrades to the wastewater treatment plant will have a direct impact on the capacity ratings of the facility by increasing flow of wastewater from 16 million gallons per day by one million, which will increase the biochemical oxygen demand rating by 18 percent, the report says. 

$12 million of the funds will come from the state’s revolving fund.