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.
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Plasma-activated water from DBD as a source of nitrogen for agriculture: Specific energy and stability studies
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7 March 2021
Research Article|
March 05 2021
Plasma-activated water from DBD as a source of nitrogen for agriculture: Specific energy and stability studies

P. S. Ganesh Subramanian
;
P. S. Ganesh Subramanian
1
Centre for Sustainable Technologies, Indian Institute of Science
, Bangalore 560012, India
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Ananthanarasimhan J.
;
Ananthanarasimhan J.
1
Centre for Sustainable Technologies, Indian Institute of Science
, Bangalore 560012, India
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Leelesh P.
;
Leelesh P.
1
Centre for Sustainable Technologies, Indian Institute of Science
, Bangalore 560012, India
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Harsha Rao;
Harsha Rao
1
Centre for Sustainable Technologies, Indian Institute of Science
, Bangalore 560012, India
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Anand M. Shivapuji;
Anand M. Shivapuji
1
Centre for Sustainable Technologies, Indian Institute of Science
, Bangalore 560012, India
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Pierre-Luc Girard-Lauriault;
Pierre-Luc Girard-Lauriault
2
Department of Chemical Engineering, McGill University
, Montreal, Quebec H3A 0C5, Canada
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Lakshminarayana Rao
Lakshminarayana Rao
a)
1
Centre for Sustainable Technologies, Indian Institute of Science
, Bangalore 560012, India
a)Author to whom correspondence should be addressed: narayana@iisc.ac.in
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a)Author to whom correspondence should be addressed: narayana@iisc.ac.in
J. Appl. Phys. 129, 093303 (2021)
Article history
Received:
December 01 2020
Accepted:
February 14 2021
Connected Content
A correction has been published:
Publisher’s Note: “Plasma-activated water from DBD as a source of nitrogen for agriculture: Specific energy and stability studies” [J. Appl. Phys. 129, 093303 (2021)]
A companion article has been published:
A simple process for generating a greener fertilizer
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Citation
P. S. Ganesh Subramanian, Ananthanarasimhan J., Leelesh P., Harsha Rao, Anand M. Shivapuji, Pierre-Luc Girard-Lauriault, Lakshminarayana Rao; Plasma-activated water from DBD as a source of nitrogen for agriculture: Specific energy and stability studies. J. Appl. Phys. 7 March 2021; 129 (9): 093303. https://doi.org/10.1063/5.0039253
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