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In this study, the efficiency of Fenton's process to remove nickel (II) from industrial plating effluent was investigated.The effect of pH, contact time, concentrations of Fe 2+ and H 2 O 2 were surveyed.Kinetic experiments were performed in order to predict the nickel (II) removal rate from wastewater.At pH 1 to 4, nickel (II) removal efficiency increased and declined at pH > 4. The maximum nickel (II) removal efficiency was 98% at 60 min contact time, pH: 4, and Fe 2+ and H 2 O 2 concentrations of 1,600 and 2,500 mg/L.First-order kinetic describes nickel (II) removal better than zero-or second-order kinetic models.The results show that Fenton's process is effective in removing nickel (II) from industrial plating effluent below the EPA discharge limit.
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Ahmadian et al. (2015) studied this question.
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