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Optimization of a green plasma process for nitrogen fixation in water

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan

Citation:  2022 ASABE Annual International Meeting  2200908.(doi:10.13031/aim.202200908)
Authors:   Sarah X Wu, Bishal Thapa, Yuan Yuan, Robinson Ndeddy Aka, Alia Nasir
Keywords:   Air flow rate, Liquid-phase plasma, Nitrogen fertilizer, Power consumption.

Abstract. In this study, a novel, continuous flow liquid-phase plasma discharge (CFLPPD) reactor was investigated to optimize the production of nitrate and nitrite in liquid as nitrogen fertilizer using air and water as substrates. The CFLPPD was able to produce NOx continuously as reported, which is being a promising technology for Nitrogen rich fertilizer. Air flow rate, Water flow rate, Power, Volume was identified as significant factors affecting NOx production and Air flow rate, volume and water flow rate was identified as significant factor affecting N-efficiency. The optimum experimental condition for NOx production ≥ 283.687 mg was achieved when the air flow rate and power were in range of 2.13 to 2.32 slpm and 300 to 314 W, respectively. The optimum experimental condition for N-efficiency (≥283.687mg) can be achieved at air flow rate in the range of 2.13 to 2.32 slpm and power in the range of 300 to 314 W.

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