Plasma-activated water from DBD as a source of nitrogen for agriculture: Specific energy and stability studies

P S, GS and J, A and P, L and Rao, H and Shivapuji, AM and Girard-Lauriault, P-L and Rao, L (2021) Plasma-activated water from DBD as a source of nitrogen for agriculture: Specific energy and stability studies. In: Journal of Applied Physics, 129 (9).

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Abstract

Successful application of plasma-activated water (PAW) as an alternate source of nitrogen for agricultural application requires low specific energy consumption. This work reports on a dielectric barrier discharge (DBD) plasma reactor for the generation of PAW having low specific energy (SE) consumption. The SE to produce N in PAW was 3.26 GJ/kg of N, which is 68 lower than the lowest value reported to date for DBD-PAW systems. The PAW generated was characterized for its physico-chemical parameters, most of which showed a linear increase with activation time (ta). The concentration of hydrogen ion and that of the nitrate, which is the desired product for agricultural application, remained stable for four weeks in the PAW. The results indicate that minimal reactive oxygen species was formed in the plasma zone and only reactive nitrogen species (RNS) was formed confirming selectivity toward RNS. © 2021 Author(s).

Item Type:	Journal Article
Publication:	Journal of Applied Physics
Publisher:	American Institute of Physics Inc.
Additional Information:	The copyright for this article belongs to American Institute of Physics Inc.
Keywords:	Agricultural robots; Agriculture; Dielectric devices; Dielectric materials; Electric discharges; Energy utilization; Nitrogen; Plasma diagnostics; Plasma stability, Alternate Source; Dielectric barrier discharge plasmas; Low specific energy; Physico - chemical parameters; Plasma-activated waters; Reactive nitrogen species; Specific energy; Stability study, Nitrogen plasma
Department/Centre:	Division of Mechanical Sciences > Centre for Sustainable Technologies (formerly ASTRA)
Date Deposited:	30 Mar 2021 12:00
Last Modified:	16 Jul 2021 09:11
URI:	http://eprints.iisc.ac.in/id/eprint/68507

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