Photoeletrolytic system applied to remazol red brilliant degradation

Abstract

Toxicity tests using Sacharomycces cerevisiae were made with simulated textile effluents containing reactive dye (remazol red brilliant) treated by photoeletrolytic process, varying treatment time and applied current. The treatment incorporated an electrolytic reactor with rectangular titanium anode coated with 70% TiO(2)/30% RuO(2) cathode and a rectangular stainless steel coupled with another photolytic reactor containing a high power UV lamp. The treatment system was used in batch recirculation, in other words, the simulated effluent was driven by the system through a helical pump. It was observed that the higher the value of current applied, the longer the treatment has greater color removal of textile effluent and higher mortality of S. cerevisiae, killing up to 100% of the cells at the end of the treatment. With a lower current applied and having the treatment time of 5 minutes, the effluent showed a color removal of 97% and a lower mortality of S. cerevisiae than the effluent simulated without any treatment.

Colour Degradation of Simulated Textile Effluent by Electrolytic Treatment and Ecotoxicological Evaluation

“…As presented in Table 2, conductivity had not changed significantly during the electrolytic process. The use of sodium chloride (NaCl) and sodium carbonate (Na 2 CO 3 ) had the intention to simulate an actual textile effluent (Sousa et al 2011) and to raise conductivity. The increase in the solution conductivity results in a decrease in electrical energy consumption due to reduction of cell voltages.…”

Photo Electrolytic Process in A Simulated Textile Effluent Treatment and Its Cost for Application

“…Newer processes as electrochemical (Inazaki et al, 2008) and photochemical are considered promissory for treating organic effluents. They present efficient results for textile effluents (Sousa et al, 2011) and can contribute as alternative or complementary treatment. Therefore, the purpose of the study was verify the photoelectrolytic system efficiency attached to an electrochemical reactor in simulated textile effluent treatment containing the reactive dye Remazol Navy Blue HR.…”

Textile Dye Treated Photoelectrolytically and Monitored by Winogradsky Columns

“…It is also efficient in the presence of organic matter (Ziolli and Jardim, 1998) and could even be used for sewage treatment (Cossu et al, 1998). However, despite color removal, the dye molecule might end up not being completely destroyed (Sauer et al, 2002), thus causing high toxicity after treatment (Sousa et al, 2011).…”