Treatment of wastewater batik by electrochemical coagulation using aluminium (Al) electrodes

International Conference on Chemistry and Material Science 2017

化学;材料科学

Riyanto^1 ; Puspitasari, Eny^1

Department of Chemistry, Faculty of Mathematics and Natural Science, Universitas Islam Indonesia, Jalan Kaliurang KM 14, 5, Sleman Yogyakarta, Indonesia^1

关键词: Aluminium electrode;    Atomic absorption spectrophotometer;    Electro coagulations;    Electrochemical coagulation;    Electrolyte solutions;    Energy dispersive x-ray;    Optimum conditions;    Waste degradation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/299/1/012081/pdf
DOI  :  10.1088/1757-899X/299/1/012081

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Treatmentof wastewater batik by electrocoagulation method using aluminium (Al) electrodes has been done. Electrocoagulation method was chosen for treatment of wastewater batik because it is cheap, easy and efficient waste degradation. This research was conducted using aluminium (Al) electrodes and sodium chloride as an electrolyte solution. The purity of aluminium electrode was analysis using Scanning Electron Microscopy-Energy Dispersive X-ray (SEM-EDX). Electrochemical coagulation has been done using wastewater batik volume 50 mL with variation of time (10, 30, 50, 70, and 90 minutes), variation of voltage (5, 7, 9, 10, and 11 V), and variation of salt addition (0.5; 0.75; 1.00; and 1.25 g). Batik wastewater was analyzed before and after electrocoagulation by Spectrophotometer UV-Vis and the content of Pb was analyzed by Atomic Absorption Spectrophotometer (AAS). The research results show that optimum conditions electrolysis time, voltage and sodium chloride was 90 minutes, 10 V and 1.25 g, respectively. The results of this study showed the longer the electrolysis time, the higher the voltage, and the increasing number of salt added, then the batik waste decreased absorbance, alteration of color from black to clear yellow. The content of Pb in batik waste has decreased from 0.5844 mg/L to 0.1630 mg/L.