Trouble Shooting

Effective Grit Management in Anaerobic Digester Systems Starts with Testing

Grit is the silent saboteur of anaerobic digestion systems. Though it often makes up less than half of 1% of a feedstock by weight, grit can cause outsized problems.

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How to avoid Hydrogen Sulfide spikes from high protein feedstocks

Sudden hydrogen sulfide (H2S) spikes in your digester? In your feed tanks? One common culprit is feeding a large load of high protein feedstock too quickly.

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More than a mess - why digester foam poses both physical and biosafety hazards. Image shows a beaker overflowing with brown foam.

More Than a Mess – Why Digester Foam Poses Both Physical and Biosafety Hazards

Foam is a sticky, slippery mess that most digester operators have seen one time or another. While slip, trip, and fall risks are obvious, there are other biosafety hazards that need to be considered before rushing to clean up.

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Event Recap – Biogas Americas 2025

David Ellis and Peter Quosai returned to the Biogas Americas conference hosted by the American Biogas Council! As the largest North American biogas conference and tradeshow, this is a must attend event for renewable energy professionals from across the world.

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Podcast: The Science of Anaerobic Digestion

Get the inside scoop on the bugs behind the bubbles! Dave Ellis joined Matt Lensink on the CEM Energy Radio Podcast where they discussed the fascinating science behind anaerobic digestion and how this process is driving sustainable energy.

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Effectively Ensuring Safety in Biogas Facilities

This article covers five key categories of safety hazards and four hazard control methods within a biogas facility to better protect employees, the surrounding community, and our environment.

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