Kinetic analysis of simultaneous denitrification and biomineralization of novel Acinetobacter sp. CN86

Kinetic characteristics and N2O production of a heterotrophic nitrifying bacterium Pseudomonas putida YH capable of tolerating adverse environmental conditions

“…19 It was reported that both zero-and first-order kinetic models could be qualified for fitting the HNAD process (R 2 > 0.90). 10,14 The modified Gompertz model and the Logistic model also were confirmed to match the nitrogen removal and cellular growth of HNB, respectively. 19 Nevertheless, it is not clear which one is more appropriate to describe the kinetic characteristics of pure HNB.…”

“…The modified Gompertz model [Eqn (2)] and the exponential decay model [Eqn (3)] were adopted to match the kinetic processes of nitrogen removal. where S is the NH 4 + –N concentration (mg L −1 ), S 0 is the initial NH 4 + –N concentration (mg L −1 ), R m is the maximum conversion rate (mg L −1 h −1 ), t 0 is the lag time (h), t is the reaction time (h) and k' is the reaction rate constant (mg L −1 h −1 ).…”

“…At present, most kinetic models are applied mainly in activated sludge, and these models cannot accurately describe the kinetic characteristics of the HNAD process . It was reported that both zero‐ and first‐order kinetic models could be qualified for fitting the HNAD process ( R 2 > 0.90) . The modified Gompertz model and the Logistic model also were confirmed to match the nitrogen removal and cellular growth of HNB, respectively .…”

“…The advantages of HNB over conventional BNRP provide the potential to intensify reactor configurations, reducing site areas and saving operation costs. Besides, HNB exhibit strong performance in treating groundwater, ammonium‐nitrogen (NH 4 + –N) rich sewage and heavy‐metal‐containing industrial sewage, demonstrating the potential engineering value of these bacteria in extreme environments …”

“…Besides, HNB exhibit strong performance in treating groundwater, ammonium-nitrogen (NH 4 + -N) rich sewage and heavy-metal-containing industrial sewage, demonstrating the potential engineering value of these bacteria in extreme environments. [13][14][15] Recently, studies on HNB have been focused primarily on heterotrophic nitrification-aerobic denitrification (HNAD) capability, optimization of environmental conditions and metabolic pathways. 11,[16][17][18] However, scant literature is available on the kinetic analysis of HNB, which severely restricts the description and prediction of HNAD performance.…”