Maria Ester Lere, Suparno
This paper reports the efforts to reduce copper levels in artificial waste using the electrocoagulation method as an alternative for treating copper waste in liquids. The electrodes we used are made of two zinc plates with a size of 5cm x 20cm with a distance of 8cm between electrodes installed at a voltage of 12 volts. The sample used was artificial (CuSO4) waste with different solution concentrations, namely 0.2 M and 0.4 M with variations in reduction time. Analysis of copper (Cu) content uses atomic absorption spectroscopy (AAS). The results showed that the greatest absorption occurred at 60 minutes where the concentration of 0.2 M occurred by a reduction of copper metal by 36.83% and at a concentration of 0.4 M there was a reduction of copper metal by 33.10%. The results of the UV-Vis test were obtained by measuring the absorption wavelength of copper (Cu) at ± 300 nm. © 2024 Author(s).
Department of Physics Education, Faculty of Mathematics and Natural Sciences, Universitas Negeri Yogyakarta, Yogyakarta, Indonesia
