Electrocoagulation Process for Chromium Removal in Leather Tanning Effluents
1
Faculty of Civil Engineering and Planning, Division of Environmental Engineering, Institut Teknologi Nasional, Bandung, 40124, Indonesia
2
Research Center for Environmental and Clean Technology, the National Research and Innovation of the Republic of Indonesia (BRIN), Bandung Advanced Science and Creative Engineering Space (BASICS), Kawasan Sains dan Teknologi (KST) Prof. Dr. Samaun Samadikun, Jalan Cisitu-Sangkuriang No. 21 D, Bandung, 40135, Indonesia
3
Research Center for Genetic Engineering, the National Research and Innovation Agency of the Republic of Indonesia (BRIN), Kawasan Sains dan Teknologi (KST) Ir. Soekarno, Jalan Raya Jakarta-Bogor, KM. 46, Cibinong, Bogor, 16911, Indonesia
4
Collaborative Research Center for Zero Waste and Sustainability, Widya Mandala Surabaya Catholic University, Surabaya, 60114, Indonesia
These authors had equal contribution to this work
Corresponding author
Etih Hartati
Faculty of Civil Engineering and Planning, Division of Environmental Engineering, Institut Teknologi Nasional, Bandung, 40124, Indonesia
Faculty of Civil Engineering and Planning, Division of Environmental Engineering, Institut Teknologi Nasional, Bandung, 40124, Indonesia
J. Ecol. Eng. 2024; 25(4):1-13
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ABSTRACT
The application of chromium sulfate in tanning operations yields chromium-laden wastewater, posing significant environmental risks. This research explores electrocoagulation as a remedial measure for tannery effluents. Varied parameters—pH (4, 7, 10), electric currents (0.5, 1.0, 1.5 A), and durations (1, 2, 3 h)—were optimized to diminish chromium content. Evaluation based on initial and final chromium concentrations demonstrated 99.94% removal efficiency at pH 4, 1.5 A, over 3 hours. Achieving the 0.6 mg/L target concentration occurred at pH 4, 0.91 A, for 3 hours. This study highlighted electrocoagulation's effectiveness in chromium mitigation within tannery wastewater, showcasing its potential as an environmentally sustainable remediation.
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