Treatment of nitrate-nitrogen-containing wastewater via aerobic denitrifying bacteria using different carbon sources

The effect of different carbon sources was studied relative to the treatment aerobic denitrifying bacteria during nitrate-containing wastewater as well influence co-metabolism flora. Three sources, i.e., glucose, citric acid, and sodium acetate, were selected study changes in pH, nitrate nitrogen, chemical oxygen demand removal, nitrite nitrogen concentration, physical properties sludge volatile fatty acids, high-throughput sequencing any results showed that denitrification ability system using acid source stronger than glucose or acetate source. removal result producing bacteria. Due greater number types amount dominant domesticated cultured with a source, flora formed more stable, so it could better remove nitrogen.