Plasma Activated Water Generation and its Application in Agriculture

Punith, N.; Harsha, R.; Lakshminarayana, R; Moger, Hemanth; Anand, Micky; Dasappa, S.

doi:10.5185/amlett.2019.0042

Cited by 22 publications

(8 citation statements)

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“…Agricultural applications Plasma activated water (PAW) is a mixture of reactive nitrogen and oxygen species, of which nitrate and nitrite are the dominant species. The PAW can be used to enhance plant growth and seed germination [5]. Water was activated through, pin-to-water discharge for plant growth applications, and DBD for seed germination.…”

Section: Discussionmentioning

confidence: 99%

“…Using NTP, properties of water such as pH and conductivity can be regulated, when the air above water column is exposed to plasma for desired duration called as activation time (ta). This activated water is referred to as plasma activated water (PAW) which has agricultural and bio-medical applications [5][6][7]. Exposing air to NTP also produces ozone which can be used for disinfection of water.…”

Section: Introduction Non-thermal Plasma Technologymentioning

confidence: 99%

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Application of Non-thermal Plasmas in Medicine and Energy-Food-Water

Rao

Ananthanarasimhan

P.S

et al. 2021

Front. Adv. Mater. Res.

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Non-thermal plasma (NTP) due to their versatile nature have been successfully used in many applications ranging from hydrocarbon destruction to cancer treatment. The NTPs, can deliver high electron temperatures and high densities of radicals at near ambient conditions making it a unique source for applications ranging from treatment of extremely heat sensitive surfaces to complex chemical reactions which are feasible only at low temperatures. This work presents some of the recent understandings on how various NTP reactors can be designed and characterized for various applications. The results obtained from a pin-to-water plasma discharge system, in generating plasma activated water for agricultural applications are discussed. The application of NTPs in hydrocarbon reforming to obtain a tar-free gas from a waste to energy thermo-chemical process is discussed. The results of selective killing of cancer cells using a DBD is presented. Also, application of NTPs in wastewater treatment systems to treat household chemical products are presented.

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Section: Discussionmentioning

confidence: 99%

Section: Introduction Non-thermal Plasma Technologymentioning

confidence: 99%

Application of Non-thermal Plasmas in Medicine and Energy-Food-Water

Rao

Ananthanarasimhan

P.S

et al. 2021

Front. Adv. Mater. Res.

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“…(Courtesy: [3]) N. Punith et al stated that Ozone and hydrogen peroxide are major reactive oxygen species whereas nitrites, nitrates and peroxynitrites are major reactive nitrogen species. Nitrates produced in plants can serve as an alternative source of nitrogen for enhancing the growth of plants [4]. According to J. Julak et al Nitrates play two main roles -as a nutrient, it is assimilated by plant enzymes leading to the production of amino acids and nitrogen compounds; and as a signal molecule it can control numerous aspects of plant development and metabolism.…”

Section: Figure 1: the Setup Is Called A Hydrodynamic Cavitation Plasma Jet (Hcpj)mentioning

confidence: 99%

Influence of Feeding Gases on the Composition of Plasma Activated Water

et al. 2021

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As we are all aware that “PLASMA” is the fourth state of matter and about 99% of the universe comprises of plasma. Plasma invariably consists of essential reactive oxygen and nitrogen species which are necessary for agricultural purposes thus making it an interesting subject for research. When water is exposed to plasma arc, its composition changes and forms Plasma Activated Water (PAW). Research studies have proved PAW to be an effective disinfectant and also providing imperative nutrients to plants. This paper reviews the impact of feeding gases such as Air, Ammonia, Argon, Nitrogen, Helium, Oxygen and Carbon dioxide on PAW composition. Hydrogen peroxide, nitrates, nitrites and pH value are the four key aspects of PAW which decide its influence. H2O2 helps in bacterial inactivation whereas nitrates and nitrites are a source of nutrients. It is known that nitrites decompose rapidly in water and form compounds that promote bacterial inhibition. Here the impact of using Air, Ammonia, Argon, Nitrogen, Helium, Oxygen, and Carbon dioxide is being reviewed and studied. More specifically, the concentration of major Reactive Oxygen and Nitrogen Species (RONS) formed in the process and the physical properties of PAW at various atmospheres are is discussed in detail.

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“…Various NTP sources and configurations are studied to generate PAW. [2,9,10,[21][22][23][24] A diverse variation in the strength of PAW varies considerably with air or carrier plasma, type of plasma-water interaction, temperature, water chemistry, and behavior. The understanding of strength PAW in an efficient concentration and volume is abundant attention to address the current global pandemics and global threats in terms of antimicrobial resistance in pathogens.…”

Section: Introductionmentioning

confidence: 99%

“…Activating demineralized (DM)/distilled (DI) water results in the acidic pH of the PAW. [12,14,20,[25][26][27]30,31] The PAW generated using the tap water remains in the neutral pH range, as shown in Table 1, due to the buffer action of naturally occurring bicarbonates in tap water [23,27,28] (discussed later in Section 3.1). However, their strength was not higher than DI/DM-activated PAW.…”

Section: Introductionmentioning

confidence: 99%

Generation of neutral pH high‐strength plasma‐activated water from a pin to water discharge and its bactericidal activity on multidrug‐resistant pathogens

Punith

Singh

Ananthanarasimhan

et al. 2022

Plasma Processes & Polymers

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Plasma‐activated water (PAW) is emerging as a green alternative technology in biomedicine due to its rich and diverse aqueous reactive nitrogen and oxygen species (RONS). This study explores how to configure a pin to water (P2W) discharge to generate neutral pH high‐strength plasma‐activated water (hs‐PAW) and its bactericidal activity on hypervirulent multidrug resistance (MDR) pathogens. The factors affecting the strength of PAW, namely: water type, PAW temperature, plasma enclosure, and activation time, were studied and optimized to generate hs‐PAW having 650 ± 40 mg/l of NO 2 − ${\mathrm{NO}}_{2}^{-}$ and 215 ± 15 mg/l of H2O2 at a pH of 7. This study demonstrates a simple P2W discharge set up to handle the MDR pathogens and can be easily scalable for real‐world medical applications.

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Plasma Activated Water Generation and its Application in Agriculture

Cited by 22 publications

References 0 publications

Application of Non-thermal Plasmas in Medicine and Energy-Food-Water

Application of Non-thermal Plasmas in Medicine and Energy-Food-Water

Influence of Feeding Gases on the Composition of Plasma Activated Water

Generation of neutral pH high‐strength plasma‐activated water from a pin to water discharge and its bactericidal activity on multidrug‐resistant pathogens

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