Denitrification treatment method, complex microbial community and production method thereof

摘要

Provided is a denitrification treatment method which realizes nitrate nitrogen removal rapidly and satisfactorily over a long period of time. A method for denitrifying a substance to be treated with a microorganism, wherein the substance to be treated is water or soil containing nitrate nitrogen and / or nitrite nitrogen, and the microorganism is a quinone having a ubiquinone ratio of 70 mol% or more. A denitrifying method characterized in that it is a complex microbial community having a composition.