When the tide comes in, anaerobic bacteria, which need no oxygen, go to work.

FORBES: Magazine Article

Then anaerobic bacteria take that nitrate and turn it into harmless nitrogen gas.

FORBES: Page 2 of 2

The water is combined is an air tight chamber with anaerobic digesters (bacteria) which take out about 70% of the bad stuff out of the water.

FORBES: DONQ: LEADING LIQUOR TO SUSTAINABILITY

Anaerobic microbes--bacteria that live without oxygen--were generating the methane.

FORBES: Magazine Article

First, the hog waste is placed in an anaerobic digester, which contains bacteria that consume the manure and release methane gas.

FORBES: Written by John Platt

Methane is the final product of the anaerobic metabolic pathway of clostridium bacteria breaking down organic matter in the absence of oxygen, primarily cellulose.

FORBES: How Could You Possibly Have A Problem With Diesel-Based Gas Fracking?

In an oxygen-free (anaerobic) environment at a certain temperature, pH and salinity, the bacteria can produce a toxin that in very small amounts can cause life-threatening paralysis.

FORBES: Prisoners Making Hooch: What Could Possibly Go Wrong?