Lutfia Apipah
Diponegoro University

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PEMANFAATAN LIMBAH ELEKTRODA AKI PADA PROSES ELEKTRODEKOLORISASI LARUTAN ZAT WARNA Apipah, Lutfia
Chem Info Journal Vol 1, No 1 (2013)
Publisher : Chem Info Journal

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Abstract

Industrial waste had caused some reduction of water quality, one of them is liquid waste of coloring or dyeing batik production which contains indigosol dye and remazol black B that being dumped to water directly while the environment has limited capability to degradate that dye. Electrolysis method had been chosen as one alternative to cope with dye waste, because its benefits compare to other methods which are effective and simple. One of supporting factor of this method is the electrode being used. This research is destined to decolorized indigosol and remazol black B dye, using PbO2/Pb from used battery as electrode and reducing Chemical Oxygen Demand (COD) number. This research using PbO2/Pb as electrode obtained from battery electrodes waste. This method electrolyze dye sample on 8 volt using PbO2/Pb electrode obtained from used battery and conducted in 150 minutes. Final result of the electrolysis will be qualitatively and quantitavely analyze using UV-VIS spectrophotometer, and analyze Chemical Oxygen Demand (COD). The research result indicated that the use of PbO2/Pb electrode from used battery can reduce color intensity, respectively by 98.02% and 99.42% each for indigosol and remazol black B dye, and could reduce COD number respectively to 28.47% and 51.47% for each dye.
Potential Oxidative Treatment Using Pb-PbO2 Electrode in Electrodecolorizing Batik Wastewater Widodo, Didik Setiyo; Nuryanto, Rahmad; Haris, Abdul; Dewi, Prihastuti Santini Laksmi; Apipah, Lutfia
Jurnal Kimia Sains dan Aplikasi Vol 21, No 3 (2018): Volume 21 Issue 3 Year 2018
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

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Abstract

Electrodecolorization of batik wastewater has been done. Study was performed to remediate aquatic environment containing dyes of batik industry by electrolysis, decreasing COD and some metal ions as well. Research was conducted by electrolyzing sample from Buaran Pekalongan and Semarang using Pb and PbO2 as electrodes at a constant applied potential. Solution after treating were analysed, zeolite sieving treatment, and final analysis by UV-Vis spectrophotometer for measuring decolorization percentages, atomic absorption spectrophotometerer (AAS) for evaluating metal ions of Cu2+, total Fe and Na+, and COD analysis. Results show that electrolysis of batik wastewater using PbO2 as anode effectively decolorize and decreasing COD values. Sample containing indigozol and remazol black B (RBB) were decolorized up to 100%. CODs were reduced to 98.6% and 95.4%, respectively. Zeolite treatment enhancing water quality by reducing ion concentration of Cu2+, total Fe ions and Na+.