Abstract:This study developed a bioaggregate reactor by using Pseudomonas strain GF2. The response surface method indicated that the optimal parameters were pH 7, a hydraulic retention time (HRT) of 6 h, and an initial nitrate concentration of 25 mg L−1. Nitrate removal reached a maximum of 99.19 % at a C/N ratio of 2. Gas chromatographic detection revealed that nitrogen gas was the main product (98.46 %). 3D fluorescence spectroscopy showed that, with increasing HRT, the amounts of fulvic acid‐like, tryptophan, and pr… Show more
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