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1 Journal of Ecological Engineering

1 2024

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Electrocoagulation Process for Chromium Removal in Leather Tanning Effluents

Hartati Etih, Hasyyati Lina, Permadi Didin Agustian, Djaenudin Djaenudin, Permana Dani, Putra Herlian Eriska

Journal of Ecological Engineering

2024

Vol. 25, nr 4

1--13

The application of chromium sulfate in tanning operations yields chromium-laden wastewater, posing significant environmental risks. This research explored 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 the 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 the effectiveness of electrocoagulation in chromium mitigation within tannery wastewater, showcasing its potential as an environmentally sustainable remediation.