The Uptake Kinetics of Nitrogen and Phosphorus by Nitzschia Sp.

Abstract:

The effects of eutrophication on the absorption kinetic parameters of nitrogen and phosphorus are investigated. The results show that the kinetic characteristics of phosphate, nitrate- nitrogen, ammonia-nitrogen and nitrite-nitrogen of Nitzschia sp. are all generally in accord with the function of Michaelis-Menten equation. The Km of them are 1.81 mg/L, 1.75 mg/L, 0.20 mg/L and 4.53 mg/L, respectively. The maximum uptake rates of nitrate-nitrogen and ammonia- nitrogen are higher than that of nitrite-nitrogen, which indicates that nitrate-nitrogen and ammonia- nitrogen can be uptaken more preferential than that of nitrite-nitrogen. In conclusion, Nitzschia sp. has a fast utilized rate of ammonia-nitrogen, nitrate-nitrogen and phosphorus. This indicates that Nitzschia sp. has a good effect on water quality and it could be applied potentially to purify waste water.

• Periodical: Advanced Materials Research (Volumes 518-523)
• Pages: 549-553
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.518-523.549
• Online since: May 2012
• Authors: Qun Su, Rong Lian Xing, Hui Yi Wang
• Keywords: Kinetic, Nitrogen and Phosphorus, Nitzschia Sp.

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