Synergistic removal of heavy metals and turbidity in electroplating wastewater through zeolite pre-treatment and electrocoagulation
Keywords:
adsorption, chromium, pollutant, optimal, reducedAbstract
Electroplating industries produce wastewater containing high levels of heavy metals and other pollutants, posing serious environmental and health risks. This study examines a two-stage treatment approach combining zeolite adsorption as a pre-treatment and electrocoagulation as a primary treatment. Zeolite adsorption effectively reduced chromium (Cr) and turbidity by 49.12% and 40%, respectively, at an optimal dosage of 15 g/L, significantly lowering the pollutant load for subsequent treatment. The electrocoagulation process further enhanced removal, achieving maximum reductions in Cr (82.76%) and turbidity (80.95%) at a voltage of 30 V and a treatment duration of 90 minutes. This integrated system demonstrated a synergistic effect, addressing the limitations of standalone technologies by combining the high adsorption capacity of zeolite with the coagulant generation efficiency of electrocoagulation. Additionally, the method minimized sludge generation and reduced operational costs, offering a sustainable and effective solution for electroplating wastewater treatment. The study provides valuable insights for optimizing industrial wastewater management to meet stringent environmental standards.
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Copyright (c) 2024 Muhammad Akbar Febrianto, Dian Majid, Sri Sulystyaningsih Natalia Daeng (Author)
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