UV-C photon integrated surface dielectric barrier discharge hybrid reactor: A novel and energy-efficient route for rapid mineralisation of aqueous azo dyes

Environmentally Friendly UV-C Excimer Light Source with Advanced Oxidation Process for Rapid Mineralization of Azo Dye in Wastewater

“…The pH in all of the experiments is found to be neutral; hence, no neutralization is required after treatment. In general, in direct atmospheric pressure cold plasma treatments, the pH of the treated effluents decreases, and it becomes acidic in nature . However, in the direct photolysis process, no neutralization is required, which is one of the advantages of this study.…”

“…In general, in direct atmospheric pressure cold plasma treatments, the pH of the treated effluents decreases, and it becomes acidic in nature. 5 However, in the direct photolysis process, no neutralization is required, 82 which is one of the advantages of this study. When we compare the growth in 3 and 40 min by XeI*-excimer/H 2 O 2 treatment, the treatment for 40 min displayed the highest germination percentage and enhanced growth of stems and roots because of the increased demands of oxygen in the case of 3 min as compared to 40 min treatments (see Figure 12 b).…”

“…Figure 12 a shows the system’s energy yield for different treatment methods used in this work. Allabakshi et al 5 used a surface dielectric barrier discharge system with UV-C light for dye mineralization and reported a maximum energy yield of 522 mg/kWh. According to the literature, the present XeI*-excimer/H 2 O 2 system showed reasonably good energy efficiency compared to many other reported plasma reactors.…”

“…Textile effluents contain typical dye content ranging between 10 and 200 mg/L . Many human and animal disorders have been traced to the toxic and highly carcinogenic nature of textile dyes. , A wide range of dyes exist, but because of their bright and long-lasting color, azo dyes (−NN−) contribute 60 to 70% of the total dye consumed in the textile, paper, and leather industries. , These dyes are frequently utilized in industrial procedures, such as manufacturing artificial dyes and coloring materials in sectors like textiles, dry cleaning, and others . Significant quantities of water are utilized in the textile industries for dying processes.…”

Development of efficient nonthermal atmospheric-pressure Ar-plasma jet through simultaneous spectroscopic characterization and radical quantification

“…This is due to the high removal efficiencies that NTPs offer for various pollutants, including volatile organic pollutants, NO x , soot, and synthetic organic pollutants [8]. It allows efficient pollutant removal without consuming excessive energy resources [20]. Additionally, NTP-based treatment eliminates the need for chemical additives, resulting in cost savings and a reduced environmental impact [2].…”