Aplicação da tecnologia eletroquímica como alternativa para a remoção de corante têxteis em efluentes sintéticos e reais utilizando anodos de platina e diamante

摘要

In this work, electrochemical technology was used to treat synthetic wastewatercontaining Methyl Red (MR) and Blue Novacron (BN) by anodic oxidation using anodesplatinum (Pt) and real samples of textile effluents using DDB anodes and platinum (Pt). Theremoval of color from the galvanostatic electrolysis of synthetic wastewater MR and BN, andthe actual sample has been observed under different conditions (different current densities andtemperature variation). The investigation of these parameters was performed in order toestablish the best conditions for removal of color and chemical oxygen demand (BOD).According to the results obtained in this study, the electrochemical oxidation processessuitable for the degradation process of color and COD in wastewater containing such textiledyes, because the electrocatalytic properties of Pt and BDD anodes consumption energyduring the electrochemical oxidation of synthetic solutions AN and MR and real sample,mainly depend on the operating parameters of operation, for example, the synthetic sample ofMR, energy consumption rose from 42,00kWhm-3 in 40 mAcm-2 and 25 C to 17,50 kWhm-3 in40mAcm-2 and 40 C, from the BN went 17,83 kWhm-3 in 40mAcm and 40°C to 14,04 kWhm-3 in 40mAcm-2 and 40 C (data estimated by the volume of treated effluent). These resultsclearly indicate the applicability of electrochemical treatment for removing dyes fromsynthetic solutions and real industrial effluents