ELEKTRODEKOLORISASI LIMBAH CAIR INDUSTRI SARUNG TENUN SAMARINDA MENGGUNAKAN ELEKTRODA PbO2/Pb DARI AKI BEKAS

Abstract

Electrodecolorization of liquid waste from the Samarinda woven sarong industry using PbO₂/Pb electrode has been conducted. The purpose of this study was to decolorize woven sarong wastewater samples using the electrodecolorization method using lead dioxide (PbO₂) as the anode and lead (Pb) as the cathode. Electrodecolorization is carried out by varying working potential, Na₂SO₄ electrolyte concentration, time and electrode distance. The dye concentration was determined using a UV-Vis spectrophotometer. The research results showed that the optimum conditions for electrodecolorization of woven sarong wastewater samples were using PbO₂/Pb electrodes, namely with a working potential of 6 volts, a Na₂SO₄ electrolyte concentration of 0.25 M, a time of 60 minutes, and a distance of 1 cm. The percentage of decolorization of Samarinda woven sarong wastewater samples using PbO₂/Pb electrodes, at maximum conditions was 98,75%.