EditorialIt Works Like a Soda Fountain Mixer and Helps an Anaerobic Digester Produce More Methane

It Works Like a Soda Fountain Mixer and Helps an Anaerobic Digester Produce More Methane

A linear digester mixer and other sustainability improvements help a growing Idaho city keep rates down and make use of resources.

  • Appeared in print as "Stirring Things Up"
  • By Steve Lund
  • June 2020
  • Sustainable Operations
It Works Like a Soda Fountain Mixer and Helps an Anaerobic Digester Produce More Methane
It Works Like a Soda Fountain Mixer and Helps an Anaerobic Digester Produce More Methane It Works Like a Soda Fountain Mixer and Helps an Anaerobic Digester Produce More Methane

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Idaho Rates Digester Mixer Methane Sustainability Ovivo USA, LLC Mixer

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It Works Like a Soda Fountain Mixer and Helps an Anaerobic Digester Produce More Methane

The Caldwell Wastewater Treatment Plant handles an average flow of 8.5 mgd.

When the Idaho city of Caldwell replaced two old digesters with a new and larger one, Salvador Arreola had to make a decision about mixing technology.

All the mixers he knew about seemed to have problems with scum lines forming at the top, sand and grit settling at the bottom, and...

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