Decolorization of organic dyes solution by atmospheric pressure glow discharge system working in a liquid flow‐through mode

Abstract

A new atmospheric pressure glow discharge (APGD) plasma-reaction system generated between a flowing liquid electrode and an Ar microjet nozzle is applied to decompose various organic dyes. The APGD system is working in a flow-through mode in an open to air atmosphere. Degradation of the organic dyes and formation of reactive oxide and nitrogen species in the liquid and plasma-liquid interface zone are studied. Effectiveness of this system in decomposition of the organic dyes is also compared with that achieved for the classical advances oxidation processes (AOPs)

A novel air plasma electrolysis with direct air injection in plasma zone to produce nitrate in degradation of organic textile dye

“…The system has a total liquid volume of 3 L, consisting of 0.02 M of K 2 SO 4 as an electrolyte, 200 mg L À1 of Remazol red as the organic textile dye wastewater, and 20 mg L À1 of Fe 2+ ion as the catalyst for H 2 O 2 decomposition into •OH. 12,20,21 A representative experimental set-up can be seen in Figure 1.…”

Combinatorial effects of non-thermal plasma oxidation processes and photocatalytic activity on the inactivation of bacteria and degradation of toxic compounds in wastewater

“…The detailed description of the OHc measurements is described elsewhere. [25][26][27] TA reacts only with OHc radicals leading to the production of hydroxyterephthalic acid (HTA). The presence of OHc radicals in the plasma-treated aqueous solution was measured by UV light (wavelength: 310 nm) given the fact that the produced HTA molecules emit a uorescence line at 425 nm as was observed by spectrophotometric measurements (Ocean Optics HR4000CG UV-NIR spectrometer).…”

Can we remove tattoos with non‐thermal atmospheric plasma?

“…[ 1–3 ] NTP has also been successfully reported as an advanced oxidation process capable of oxidizing and decomposing persistent organic pollutants like pigments and dyes from wastewater. [ 4,5 ] Combining these two assets, it seems natural to inquire if NTP could also decompose artificial pigments in the skin. In other words, is it possible to remove tattoos by treating them with NTP?…”