Isolation and identification of a denitrogenation microorganism and its nitrogen removal activity
Abstract：A denitrogenation microorganism FX7 was isolated with silicate plate from soil. The experiment results showed that under aerobic conditions the reduction efficiency within 48 hours was up to 45% with initial nitrite nitrogen concentration of 2500 mg/L. On the basis of its physiological and molecular properties, strain FX7 was identified as Pseudomonas sp. Though the nitrite nitrogen removal ability of strain FX7 was strongly inhibited by ions Pb^2＋, Hg^2＋and Cr^7＋, the nitrite nitrogen removal ability was activated by ions ofZn^2＋ and Fe^3＋ with low concentration.
Keywords：ProbioticsBiological nitrogen removalIsolation and identification
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 39-41 )