Abstract
Emissions of textile dyes result in biological hazard. The technology response to the problem of textile dyes suffers unaffordable costs. Application of pulsed corona discharge (PCD) to azo-dyes oxidation requires establishing operation conditions. Experimental studies in oxidation of reactive blue RB4 and RB19 were undertaken with variation of pulse, temperature, electrolyte and surfactant parameters. Application of PCD demonstrated dyes removed at high energy efficiency, up to 340–360 g kW−1 h−1 in presence of a surfactant. Sodium sulphate and chloride reduced RBs’ oxidation efficiencies equally in respect to conductivity with no electrolysis observed. The negative effect of elevated temperature was quantified.
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