The performance and mechanism of simultaneous removal of fluoride, calcium, and nitrate by calcium precipitating strain Acinetobacter sp. H12.

A calcium precipitating and denitrifying bacterium H12 was used to investigate the F removal performance and mechanism. The results showed that the strain H12 reduced 85.24% (0.

Enhancement of the denitrification in low C/N condition and its mechanism by a novel isolated Comamonas sp. YSF15.

A novel denitrifying bacterium YSF15 was isolated from the Lijiahe Reservoir in Xi'an and identified as Comamonas sp. It exhibited excellent nitrogen removal ability under low C/N conditions (C/N = 2.5) and 94.