Production of Large Quantity of Plasma Activated Water Using Multiple Plasma Device Setup

Rathore, Vikas; Patil, Chirayu; Nema, Sudhir Kumar

doi:10.2139/ssrn.4540546

Cited by 2 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The observed intensity of N 2 + CO 2 plasma was substantially higher compared to NH 3 + CO 2 plasma under the same operating parameters, such as gas pressure and applied voltage. Both emission spectra primarily display emission band peaks of the N 2 second positive system (SPS (38)(39)(40)(41)(42)(43)(44). Among these, the emission band peaks of N 2 + FNS are significantly more intense.…”

Section: Optical Emission Characterization Of Plasmamentioning

confidence: 99%

Green pathway of Urea Synthesis through Plasma-Ice Interaction: Optimization and Mechanistic Insights with N2 + CO2 and NH3 + CO2 Gas Mixtures

Rathore

2024

Preprint

View full text Add to dashboard Cite

This study explores a green pathway for urea synthesis using plasma-ice interaction with gas mixtures of N2 + CO2 and NH3 + CO2. Electrical and optical emission spectroscopy were employed to characterize the plasmas, revealing that urea formation involves complex reactions driven by high-energy species, producing reactive nitrogen and carbon intermediates that further react to form urea. Physicochemical analyses of plasma-treated ice showed increased pH, electrical conductivity (EC), and reduced oxidation-reduction potential (ORP). Optimization of plasma process parameters (gas pressure, applied voltage, and treatment time) was performed to enhance urea formation. Among these parameters, plasma treatment time had the most substantial influence. Increasing treatment time from 20 to 60 minutes significantly impacted physicochemical properties: for N2 + CO2 plasma, pH increased by 21.05%, EC by 184.7%, and ORP decreased by 27.48%; for NH3 + CO2 plasma, pH increased by 27.37%, EC by 239.05%, and ORP decreased by 72.67%, respectively. The study shows that NH3 + CO2 plasma produces a significantly higher concentration of urea (7.7 mg L-1) compared to N2 + CO2 plasma (0.55 mg L-1). This is attributed to the direct availability and reactivity of ammonia, which simplifies reaction pathways and enhances intermediate formation. These findings highlight the potential of plasma-ice interaction as an energy-efficient and environmentally friendly method for urea synthesis, offering a sustainable alternative to conventional processes.

show abstract

Section: Optical Emission Characterization Of Plasmamentioning

confidence: 99%

Green pathway of Urea Synthesis through Plasma-Ice Interaction: Optimization and Mechanistic Insights with N2 + CO2 and NH3 + CO2 Gas Mixtures

Rathore

2024

Preprint

View full text Add to dashboard Cite

show abstract

Physicochemical Characteristics and Antimicrobial Efficacy of Plasma-Activated Water Produced by an Air-Operated Coaxial Dielectric Barrier Discharge Plasma

Miranda,

Tavares,

Gomes

et al. 2023

Water

View full text Add to dashboard Cite

In this study, Plasma-Activated Water (PAW) was synthesized using a coaxial Dielectric Barrier Discharge (DBD) reactor, benefiting from the elevated capacity of air-flow-assisted DBD discharges to enhance nitrogen-based species concentration. By manipulating operational parameters, including gas flow rate, activation time, and DI water volume, we achieved significant concentrations of reactive oxygen and nitrogen species (RONS). As a result, the PAW obtained displayed pronounced physicochemical attributes: a pH of 2.06, an ORP of 275 mV, conductivity of 3 mS/cm, and TDS of 1200 mg/L. A pivotal aspect of this research was the evaluation of the reactor’s efficiency, as indicated by metrics like the specific input energy and ozone efficiency yield. The antimicrobial potential of the PAW was also assessed against pathogenic microbes, with remarkable reductions in viability for both Staphylococcus aureus and Escherichia coli (99.99%) and a more moderate decrease for Candida albicans (37%). These findings underscore the capability of coaxial DBD reactors in crafting high-quality PAW with significant antimicrobial properties, necessitating further studies to validate its broad-spectrum and safe applications.

show abstract

Production of Large Quantity of Plasma Activated Water Using Multiple Plasma Device Setup

Cited by 2 publications

References 0 publications

Green pathway of Urea Synthesis through Plasma-Ice Interaction: Optimization and Mechanistic Insights with N2 + CO2 and NH3 + CO2 Gas Mixtures

Green pathway of Urea Synthesis through Plasma-Ice Interaction: Optimization and Mechanistic Insights with N2 + CO2 and NH3 + CO2 Gas Mixtures

Physicochemical Characteristics and Antimicrobial Efficacy of Plasma-Activated Water Produced by an Air-Operated Coaxial Dielectric Barrier Discharge Plasma

Contact Info

Product

Resources

About